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Metal–organic framework (MOF)‐based membranes excel in molecular separation, attracting significant research interest. The crystallographic microstructure and selective adsorption capacity of MOFs closely correlate with their gas separation performance. Here, aniline was added to the ZIF‐8 synthesis in varying concentrations. Aniline, encapsulated within ZIF‐8 cavities, interacts strongly with the 2‐methylimidazole linker, resulting in both a shift in crystallographic phase from I_43 m to Cm in Rietveld refinement of X‐ray diffraction (XRD) patterns and the selective adsorption behavior between propylene and propane. Consequently, an aniline decorative ZIF‐8 (Anix‐ZIF‐8) membrane was prepared using a fast current‐driven synthesis method, which exhibits good propylene/propane separation selectivity of up to 85. Calculation of the interaction energy between aniline and the various crystallographic phases of ZIF‐8 using density functional theory (DFT) further verifies that aniline not only promotes the formation of crystallographic Cm phase, but also enhances the adsorption selectivity of propylene over propane. Aniline modification effectively tunes the crystallographic microstructure of ZIF‐8, thereby, improving molecular sieving capabilities. [ABSTRACT FROM AUTHOR]

The applications of nanoscale zeolitic imidazolate frameworks (ZIF‐8) for antimicrobial drug delivery depend on the aqueous suspension stability of the ZIF‐8 which is influenced by their crystallinity, size, shape, aggregation, and surface chemistry. This study evaluated the stability of ZIF‐8 nanoparticles in terms of their aggregation and sedimentation characteristics. ZIF‐8 nanocomposites were synthesized with methanol via sonication at 30°C for 1 h. The effect of drying methods (oven drying at 80°C, and vacuum drying at 35°C), number of washing steps (0 = no wash, 1, 2, 3), and washing medium (washing with water and ethanol instead of methanol, and redispersion in water and ethanol) on the suspension stability was evaluated. The impact of added xanthan gum (XG) and poly‐L‐lysine (PL) as suspension media was also evaluated. ZIF‐8 nanoparticles were also synthesized using ethanol and suspended in PL. % transmittance and zeta potential were measured for freshly prepared ZIF‐8 suspensions in PL and after freeze‐drying and resuspending in water. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and x‐ray diffraction (XRD) analysis were utilized for the assessment of the crystallinity, structure, and morphology of the samples. Antibacterial activity was evaluated by disc diffusion test against Escherichia coli. Dried methanol‐synthesized ZIF‐8 nanoparticles did not suspend in water; only the ZIF‐8 nanoparticles synthesized with reduced washing times and no drying treatment were resuspended in the water, XG and PL solutions. Instead, the ethanol‐synthesized ZIF‐8 nanoparticles were resuspended in water even after being washed three times and dried in a vacuum oven. SEM and TEM images and XRD patterns showed that alcohol can form well‐defined ZIF‐8 nanoparticles. FTIR spectra showed that ZIF‐8 had typical peaks of ZIF‐8 reported by others. Although particle size increased, the PL coating provided a 32.22% increase in zeta potential of ZIF‐8 nanoparticles from 36.25 to 47.93 mV (p < 0.05) and prevented aggregation and sedimentation of the nanoparticles without changing their morphology. All the tested ZIF‐8 nanoparticles showed antibacterial activity with the PL‐coated ZIF‐8 having the highest effect followed by the ZIF‐8 nanoparticles synthesized in ethanol. [ABSTRACT FROM AUTHOR]

Thin-film composite (TFC) membranes containing various fillers and additives present an effective alternative to conventional dense polymer membranes, which often suffer from low permeance (flux) and the permeability–selectivity tradeoff. Alongside the development and utilization of numerous new polymers over the past few decades, diverse additives such as metal–organic frameworks (MOFs), graphene oxides (GOs), and ionic liquids (ILs) have been integrated into the polymer matrix to enhance performance. However, achieving desirable interfacial compatibility between these additives and the host polymer matrix, particularly in TFC structures, remains a significant challenge. This review discusses recent advancements in TFC membranes for CO2/N2 separation, focusing on material structure, polymer–additive interaction, interface and separation properties. Specifically, we examine membranes operating under dry conditions to clearly assess the impact of additives on membrane properties and performance. Additionally, we provide a perspective on future research directions for designing high-performance membrane materials. [ABSTRACT FROM AUTHOR]

Food safety issue is becoming an international challenge for human health owing to the presence of contaminants. In this context, reliable, rapid, and sensitive detecting technology is extremely demanded to establish food safety assurance systems. MOFs (Metal-organic frameworks) are a new type of porous crystalline material with particular physical and chemical characteristics presented in food safety requirements. (Bio)sensors driven MOF materials have emerged as a promising alternative and complementary analytical techniques, owing to their great specific area, high porosity, and uniform and fine-tunable pore buildings. Nevertheless, the insufficient stability and electrical conductivity of classical MOFs limit their utilization. Employing graphene-derived nanomaterials with high functional elements as patterns for the MOF materials not only improves the structural instability and poor conductivity but also impedes the restacking and aggregation between graphene layers, thus significantly extending the MOFs application. A review of MOFs-graphene-based material used in food contamination detection is urgently needed for encouraging the advance of this field. Herein, this paper systematically outlines current breakthroughs in MOF-graphene-based nanoprobes, outlines their principles, and illustrates their employments in identifying mycotoxins, heavy metal ions, pathogens, antibiotics, and pesticides, referring to their multiplexing and sensitivity ability. The challenges and limitations of applying MOF-graphene composite for precise and efficient assessment of food were also debated. This paper would maybe offer some inspired concepts for an upcoming study on MOF-based composites in the food security context. [ABSTRACT FROM AUTHOR]

Metal‐organic frameworks (MOFs) are robust, crystalline, and porous materials featured by their superior CO2 adsorption capacity, tunable energy band structure, and enhanced photovoltaic conversion efficiency, making them highly promising for photocatalytic CO2 reduction reaction (PCO2RR). This study presents a comprehensive examination of the advancements in MOFs‐based PCO2RR field spanning the period from 2011 to 2023. Employing bibliometric analysis, the paper scrutinizes the widely adopted terminology and citation patterns, elucidating trends in publication, leading research entities, and the thematic evolution within the field. The findings highlight a period of rapid expansion and increasing interdisciplinary integration, with extensive international and institutional collaboration. A notable emphasis on significant research clusters and key terminologies identified through co‐occurrence network analysis, highlighting predominant research on MOFs such as UiO, MIL, ZIF, porphyrin‐based MOFs, their composites, and the hybridization with photosensitizers and molecular catalysts. Furthermore, prospective design approaches for catalysts are explored, encompassing single‐atom catalysts (SACs), interfacial interaction enhancement, novel MOF constructions, biocatalysis, etc. It also delves into potential avenues for scaling these materials from the laboratory to industrial applications, underlining the primary technical challenges that need to be overcome to facilitate the broader application and development of MOFs‐based PCO2RR technologies. [ABSTRACT FROM AUTHOR]

The preparation of samples for instrumental analysis is the most essential and time-consuming stage of the entire analytical process; it also has the greatest impact on the analysis results. Concentrating the sample, changing its matrix, and removing interferents are often necessary. Techniques for preparing samples for analysis are constantly being developed and modified to meet new challenges, facilitate work, and enable the determination of analytes in the most comprehensive concentration range possible. This paper focuses on using metal-organic frameworks (MOFs) as sorbents in the most popular techniques for preparing liquid samples for analysis, based on liquid-solid extraction. An increase in interest in MOFs-type materials has been observed for about 20 years, mainly due to their sorption properties, resulting, among others, from the high specific surface area, tunable pore size, and the theoretically wide possibility of their modification. This paper presents certain advantages and disadvantages of the most popular sample preparation techniques based on liquid-solid extraction, the newest trends in the application of MOFs as sorbents in those techniques, and, most importantly, presents the reader with a summary, which a specific technique and MOF for the desired application. To make a tailor-made and well-informed choice as to the extraction technique. [ABSTRACT FROM AUTHOR]

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The two CeIV MOFs [Ce6O4(OH)4(TzTz)6] (Ce_TzTz) and [Ce6O4(OH)4(TzTz)4(PyPy)2] (Ce_TzTz_PyPy; H2TzTz = [2,2′‐bithiazole]‐5,5′‐dicarboxylic acid, H2PyPy = 2,2′‐bipyridine‐5,5′‐dicarboxylic acid) are prepared starting from a pre‐formed [Ce6] glycinate‐capped cluster. N2 isotherms collected at 77 K revealed BET specific surface areas of 1136 and 238 m2 g−1, respectively. Their CO2 and N2O adsorption capacity is assessed at T = 273 and 298 K and p = 1 bar. Ce_TzTz shows the highest gas uptake (7.9 and 9.7 wt% at 298 K and 11.5 and 12.5 wt% at 273 K for CO2 and N2O, respectively). More interestingly, this homo‐linker MOF possesses a higher capacity, thermodynamic affinity [(Qst)CO2 = 18.2 kJ mol−1 vs (Qst)N2O = 25.4 kJ mol−1] and selectivity (IAST SN2O/CO2 = 1.6 at T = 273 K) toward N2O than the mixed‐linker sample. At variance, Ce_TzTz_PyPy shows a slightly higher capacity, thermodinamic affinity [(Qst)CO2 = 29.5 kJ mol−1 vs (Qst)N2O = 26.4 kJ mol−1] and selectivity (IAST SCO2/N2O = 1.4 at T = 298 K) toward CO2. DFT optimizations carried out on the [N2O@Ce_TzTz] and [CO2@Ce_TzTz_PyPy] systems revealed that the primary adsorption sites are the cerium ions of the [Ce6] metallic node for N2O and the thiazole N‐atoms on the TzTz linker for CO2, respectively. [ABSTRACT FROM AUTHOR]

Magnetocaloric materials have the ability to undergo temperature changes when subjected to varying magnetic fields. These materials are of interest due to their potential for innovative cooling applications. This review article summarizes materials that exhibit magnetic ordering within the temperature range required for gas liquefaction and explores their potential applications through the magnetocaloric effect (MCE). The gas liquefaction temperature range is typically assumed to be 20–77 K, however, this study specifically summarizes materials that have a transition temperature near to the hydrogen liquefaction temperature (≈20K). This review article aims to showcase ongoing research on magnetic materials for hydrogen liquefaction. Driven by the depletion of natural resources and environmental concerns, the search for environmentally sustainable fuels has intensified, making hydrogen a promising alternative. However, the liquefaction of hydrogen is highly energy‐intensive. The investigation focuses on identifying and understanding these materials and assessing their suitability for environmentally friendly and sustainable cooling technologies. By harnessing the magnetocaloric effect, these materials exhibit temperature changes in response to an applied magnetic field, offering advantages over traditional cooling methods that are 20–50% more efficient. The review aims to furnish researchers with essential information that can help modify magnetocaloric effect (MCE) materials, enabling them to achieve the desired magnetic ordering temperature conducive to the liquefaction of hydrogen. [ABSTRACT FROM AUTHOR]

The growing presence of diverse pollutants, including heavy metals, organic compounds, pharmaceuticals, and emerging contaminants, poses significant environmental and health risks. Traditional methods for pollutant removal often face limitations in efficiency, selectivity, and sustainability. This review provides a comprehensive analysis of recent advancements in innovative adsorbents designed to address these challenges. It explores a wide array of non-conventional adsorbent materials, such as nanocellulose, metal–organic frameworks (MOFs), graphene-based composites, and biochar, emphasizing their sources, structural characteristics, and unique adsorption mechanisms. The review discusses adsorption processes, including the basic principles, kinetics, isotherms, and the factors influencing adsorption efficiency. It highlights the superior performance of these materials in removing specific pollutants across various environmental settings. The practical applications of these adsorbents are further explored through case studies in industrial settings, pilot studies, and field trials, showcasing their real-world effectiveness. Additionally, the review critically examines the economic considerations, technical challenges, and environmental impacts associated with these adsorbents, offering a balanced perspective on their viability and sustainability. The conclusion emphasizes future research directions, focusing on the development of scalable production methods, enhanced material stability, and sustainable regeneration techniques. This comprehensive assessment underscores the transformative potential of innovative adsorbents in pollutant remediation and their critical role in advancing environmental protection. [ABSTRACT FROM AUTHOR]

Cancer treatment has witnessed the emergence of innovative stimuli-responsive nanotherapeutics aiming to overcome limitations associated with traditional drug delivery systems. Metal-organic frameworks (MOFs), a subset of inorganic nanomaterials, are known for their porous structures and versatile applications in integrated cancer diagnosis and therapy. Their noteworthy features include customizable porosity, diverse chemical configurations, adjustable sizes and shapes, and the potential for surface functionalization. The study delved into conventional cancer therapies, provided an overview of MOFs, and discussed various MOF synthesis approaches. Furthermore, this review explored the development of stimuli-responsive MOFs to enhance targeted drug delivery and bioimaging, improving the overall efficacy of cancer treatment, and investigated the applications of stimuli-responsive multifunctional MOFs in nanostructures activated by factors influencing precise drug delivery and bioimaging in cancers. pH, light, ions, temperature, magnetic field, redox reactions, and ATP contribute to the precise control of drug delivery and bioimaging processes. Designed multifunctional MOFs exhibit characteristic changes in response to external and internal stimuli, proving advantageous for drug release and bioimaging. Surface-modified MOFs with responsive features demonstrate excellent biocompatibility with noncancerous cells, efficient drug-loading capabilities, and nanocarrier-mediated targeted drug delivery to cancerous cells. Therefore, the innovative strategy of inorganic nanoscale MOFs with responsive properties holds significant promise for targeted therapeutic drug delivery and imaging across diverse malignancies. The growing interest in stimuli-activated MOFs will open new opportunities in cancer theragnostic applications. [ABSTRACT FROM AUTHOR]

In this study, the thermodynamics and kinetics of U(VI) adsorption and removal on MIL-101(Fe, Cu)/GO from wastewater were studied. The effects of pH, contact time, initial concentration and adsorption temperature were systematically studied. The results showed an effective U(VI) adsorption capacity of the MOF. The adsorption of U(VI) was analyzed by using different isotherms as well as various kinetics models. The results showed that Langmuir adsorption isotherm and quasi-second-order kinetic model were followed by the adsorption of U(VI) on MIL-101(Fe, Cu)/GO. Thermodynamic studies (ΔG < 0, ΔH < 0) demonstrated that the adsorption process is exothermic and spontaneous. The results revealed that MIL-101(Fe, Cu)/GO has a real prospect for the application in the adsorption and removal of U(VI). [ABSTRACT FROM AUTHOR]

Metal–organic frameworks (MOFs) are a class of porous materials based on the strong coordinated bonds between inorganic secondary building units (SBUs) and organic linkers to form high-porosity periodic structures. MOFs with tunable pore size, shape, and catalysis active sites recently sparked recognition interest for the design and synthesis of catalysts with the capability to decompose aromatic-based VOCs. In this review, we introduce our viewpoints for the design and synthesis of better MOF-based photocatalysts including (i) methods to enhance the interaction of aromatic-based VOCs with MOFs by controlling micropore size, tuning Lewis acidity of the metal SBUs and/or using linkers bearing electron withdrawal groups; (ii) methods to enhance adsorption/diffusion by synthesizing hierarchical MOFs through defect control, reticular structural design and/or employing the xerogel monoliths to exploit the mesopore between particles for enhancing the adsorption/diffusion; (iii) methods to optimize the band gap by selecting appropriate building block and/or doping with exotic components. Alongside that, design principles and strategies for the development of MOF-based catalysts for thermal decomposition of aromatic-based VOCs are also provided such as (i) the need to improve the thermal stability at high temperature together with a slit pore architecture connected by small windows to prevent the aggregation of active components; and (ii) methods to control the distribution and type of active components in the MOFs' matrix to alter their catalysis performance. We expect our discussion and viewpoints on the design and synthesis of MOFs and MOF-based composites to inspire researchers to design better and more efficient systems for aromatic-based VOC decomposition. [ABSTRACT FROM AUTHOR]

Wastewater treatment is designed to eradicate toxic pollutants emanating from the industrial effluent to the surface and underground water. The efficiency and limitations of most of the existing water treatment techniques such as coagulation/flocculation, photocatalysis, membrane technologies and adsorption in the remediation of toxic pollutants have been established. However, the success reported for each of these techniques is usually associated with the efficiency and environmental friendliness of water treatment products applied. MOFs-based products are one of the materials serving as an alternative to chemically synthesized products, and their application as water treatment products has been reported extensively but not systematically documented. In this review, authors endeavoured to comprehensively provide insights into the recent MOFs-based product synthesis for different applications, especially in water treatment. The key factors influencing the synthesis of MOFs, including choice of metal ions, organic linkers, and synthesis conditions, along with the latest developments in scalable and cost-effective fabrication techniques are discussed. The synthesis routes, their limitation and their performances as an adsorbent, photocatalyst and additives in membrane fabrication in the removal of toxic pollutants from water are elaborated. The prospects in the large-scale production of MOFs-based water treatment products for real industrial applications are critically reviewed in this study. Overall, a well-curated synthesis and application of MOFs in water treatment is hereby generated from the best resources accessible through the literature. [ABSTRACT FROM AUTHOR]

Herein, a series of monometallic Ni‐, Co‐ and Zn‐MOFs and bimetallic NiCo‐, NiZn‐ and CoZn‐MOFs of formula M2(BDC)2DABCO and (M,M')2(BDC)2DABCO, respectively, (M, M'=metal) with the same pillar and layer linkers 1,4‐diazabicyclo[2.2.2]octane (DABCO) and benzene‐1,4‐dicarboxylate (BDC) were prepared through a fast microwave‐assisted thermal conversion synthesis method (MW) within only 12 min. In the bimetallic MOFs the ratio M:M' was 4 : 1. The mono‐ and bimetallic MOFs were selected to systematically explore the catalytic‐activity of their derived metal oxide/hydroxides for the oxygen evolution reaction (OER). Among all tested bimetallic MOF‐derived catalysts, the NiCoMOF exhibits superior catalytic activity for the OER with the lowest overpotentials of 301 mV and Tafel slopes of 42 mV dec−1 on a rotating disk glassy carbon electrode (RD‐GCE) in 1 mol L−1 KOH electrolyte at a current density of 10 mA cm−2. In addition, NiCoMOF was insitu grown in just 25 min by the MW synthesis on the surface of nickel foam (NF) with, for example, a mass loading of 16.6 mgMOF/gNF, where overpotentials of 313 and 328 mV at current densities of 50 and 300 mA cm−2, respectively, were delivered and superior long‐term stability for practical OER application. The low Tafel slope of 27 mV dec−1, as well as a low reaction resistance from electrochemical impedance spectroscopy (EIS) measurement (Rfar=2 Ω), confirm the excellent OER performance of this NiCoMOF/NF composite. During the electrocatalytic processes or even before upon KOH pre‐treatment, the MOFs are transformed to the mixed‐metal hydroxide phase α‐/β‐M(OH)2 which presents the active species in the reactions (turnover frequency TOF=0.252 s−1 at an overpotential of 320 mV). Compared to the TOF from β‐M(OH)2 (0.002 s−1), our study demonstrates that a bimetallic MOF improves the electrocatalytic performance of the derived catalyst by giving an intimate and uniform mixture of the involved metals at the nanoscale. [ABSTRACT FROM AUTHOR]

Detecting and removing pesticide and veterinary drug residues in agricultural products are important for ensuring food safety. Current methods for detecting pesticide residues are mainly relied on sophisticated instruments, which require long detection time and skilled operators, limiting their accessibility. Metal-Organic Frameworks (MOFs) are a hybrid material composed of metal ions/clusters and organic ligands. MOFs possess multiple functions such as adsorption enrichment, catalytic degradation, and fluorescent and electrochemical signal generation. Therefore, MOFs have great potential in rapidly detecting and removing pesticide and veterinary drug residues. This review introduces functionalities of MOFs: Enrichment and removal, catalytic degradation, fluorescence sensing, and electrochemical sensing, and then summarizes their applications for rapid detecting and removing pesticide and veterinary drug residues. Additionally, this article comprehensively analyzes the advantages and disadvantages about combining RGB analysis and portable monitoring devices with MOFs. Also, the challenges of applying MOFs to detecting and removing pesticide and veterinary drug residue are discussed. Overall, this paper provides a reference for developing techniques to rapidly detect and remove containments in agricultural products. [ABSTRACT FROM AUTHOR]

The exclusion mechanism of food contaminants such as bisphenol A (BPA), Flavonoids (FLA), and Goitrin (GOI) onto the novel gallium–metal organic framework (MOF) and functionalized MOF with oxalamide group (MOF-OX) is evaluated by utilizing molecular dynamics (MD) and Metadynamics simulations. The atoms in molecules (AIM) analysis detected different types of atomic interactions between contaminant molecules and substrates. To assess this procedure, a range of descriptors including interaction energies, root mean square displacement, radial distribution function (RDF), density, hydrogen bond count (HB), and contact numbers are examined across the simulation trajectories. The most important elements in the stability of the systems under examination are found to be stacking π–π and HB interactions. It was confirmed by a significant value of total interaction energy for BPA/MOF-OX (− 338.21 kJ mol−1) and BPA/MOF (− 389.95 kJ mol−1) complexes. Evaluation of interaction energies reveals that L–J interaction plays an essential role in the adsorption of food contaminants on the substrates. The free energy values for the stability systems of BPA/MOF and BPA/MOF-OX complexes at their global minima reached about BPA/MOF = − 254.29 kJ mol−1 and BPA/MOF-OX = − 187.62 kJ mol−1, respectively. Nevertheless, this work provides a new strategy for the preparation of a new hierarchical tree-dimensional of the Ga-MOF hybrid material for the adsorption and exclusion of food contaminates and their effect on human health. [ABSTRACT FROM AUTHOR]

The exclusion mechanism of food contaminants such as bisphenol A (BPA), Flavonoids (FLA), and Goitrin (GOI) onto the novel gallium–metal organic framework (MOF) and functionalized MOF with oxalamide group (MOF-OX) is evaluated by utilizing molecular dynamics (MD) and Metadynamics simulations. The atoms in molecules (AIM) analysis detected different types of atomic interactions between contaminant molecules and substrates. To assess this procedure, a range of descriptors including interaction energies, root mean square displacement, radial distribution function (RDF), density, hydrogen bond count (HB), and contact numbers are examined across the simulation trajectories. The most important elements in the stability of the systems under examination are found to be stacking π–π and HB interactions. It was confirmed by a significant value of total interaction energy for BPA/MOF-OX (− 338.21 kJ mol−1) and BPA/MOF (− 389.95 kJ mol−1) complexes. Evaluation of interaction energies reveals that L–J interaction plays an essential role in the adsorption of food contaminants on the substrates. The free energy values for the stability systems of BPA/MOF and BPA/MOF-OX complexes at their global minima reached about BPA/MOF = − 254.29 kJ mol−1 and BPA/MOF-OX = − 187.62 kJ mol−1, respectively. Nevertheless, this work provides a new strategy for the preparation of a new hierarchical tree-dimensional of the Ga-MOF hybrid material for the adsorption and exclusion of food contaminates and their effect on human health. [ABSTRACT FROM AUTHOR]

The solvothermal synthesis of LnCl3.nH2O with terephthalic acid (benzene-1,4-dicarboxylic acid, H2BDC) produced metal–organic frameworks (LnBDC), [Ln2(BDC)3(H2O)4]∞, where Ln = Sm, Eu, Tb, and Dy. The materials obtained were characterized by a number of physico-chemical techniques. The influence of the ionic radius of the lanthanides on the microstructural characteristics of the Ln-MOFs was evaluated by performing Rietveld refinement. The MOFs obtained were tested as fluorescent sensors for numerous cations and anions in water. The highly luminescent EuBDC and TbBDC demonstrated multi-responsive luminescence sensing functions to detect Ag(I), Fe(III), Cr(III), and Cr(VI), which are essential for their environmental applications. By applying the non-linear Stern–Volmer equation, the fluorescent quenching mechanism was determined. The stability of the obtained materials in water in a wide pH range (acidity pH = 4 and alkalinity pH = 9 solutions) was confirmed. [ABSTRACT FROM AUTHOR]

The article discusses the profound impact of advancements in computing and software on theoretical simulations, marking a transformative era in computational chemistry. Focused on theoretical coordination chemistry, it delves into the historical context and underscores the contemporary importance of computational methods. Coordination materials, involving metal atoms surrounded by ligands, are highlighted for their pivotal roles across scientific disciplines. The manipulation of ligands and metal ions within these compounds offers diverse functionalities, from catalytic modifications to enhancing oxygen transport in biological systems. The comprehensive review explores the basics of coordination materials, detailing examples across various categories. Theoretical approaches, including quantum mechanics methods like density functional theory (DFT) and Monte Carlo simulations, are thoroughly examined. The article emphasizes crystallography techniques for Metal-Organic Frameworks (MOFs) and concludes by emphasizing the exponential growth in computing power, making modeling and simulation indispensable in molecular and material research. The development of an integrated computational strategy rooted in DFT is highlighted as a crucial advancement, bridging precision and computational practicality. This holistic approach advances understanding in coordination chemistry and nanostructured materials, paving the way for innovative applications and discoveries. [ABSTRACT FROM AUTHOR]

Because of their special qualities, metal-organic frameworks, or MOFs, have drawn a lot of interest for their potential in chemiresistive ethanol sensing. Three distinct MOF materials Zr6O4(OH)4(TPA-NH2)6, Zr6O4(OH)4TPA6, and Zr6O4(OH)4NDCA6 were thoroughly examined and fabricated in this work to determine which was most appropriate for use in ethanol sensing applications. According to Tauc plot analysis, Zr6O4(OH)4(TPA-NH2)6 had the lowest optical band gap energy, 3.79 eV. FTIR spectroscopy further showed the various vibrational modes in each MOF, with Zr6O4(OH)4(TPA-NH2)6, exhibiting peculiar absorption peaks at 488 and 767 cm− 1. Dynamic light scattering provided information on Zr6O4(OH)4(TPA-NH2)6 particle size distribution. Moreover, Zr6O4(OH)4(TPA-NH2)6 demonstrated remarkable sensitivity in chemiresistive ethanol sensing, as it continuously had the strongest sensor response at various ethanol concentrations. Zr6O4(OH)4(TPA-NH2)6 was found to have the lowest limit of detection (8.69 ppm) in LOD study, indicating that it is very sensitive to ethanol. Zr6O4(OH)4(TPA-NH2)6 was shown to be the most selective for ethanol based on selectivity testing. Zr6O4(OH)4(TPA-NH2)6 exhibited the fastest response time and most effective recovery, as seen by their response and recovery times. These results offer important new understandings of the properties and functionality of MOFs for chemiresistive ethanol sensing, with Zr6O4(OH)4(TPA-NH2)6 showing great promise. [ABSTRACT FROM AUTHOR]

Semiochemicals can be used to manipulate insect behaviour for sustainable pest management strategies, but their high volatility is a major issue for their practical implementation. Inclusion of these molecules within porous materials is a potential solution to this issue, as it can allow for a slower and more controlled release. In this work, we demonstrate that a series of Zr(IV) and Al(III) metal‐organic frameworks (MOFs) with channel‐type pores enable controlled release of three semiochemicals over 100 days by pore size design, with the uptake and rate of release highly dependent on the pore size. Insight from grand canonical Monte Carlo simulations indicates that this is due to weaker MOF‐guest interactions per guest molecule as the pore size increases. These MOFs are all stable post‐release and can be reloaded to show near‐identical re‐release profiles. These results provide valuable insight on the diffusion behaviour of volatile guests in MOFs, and for the further development of porous materials for sustainable agriculture applications. [ABSTRACT FROM AUTHOR]

To achieve sustainable desalination and water purification, solar interface evaporation technology is an effective means due to its high energy efficiency. Reasonable photothermal conversion materials and surface design are crucial for the interfacial solar evaporation process. How to design water transport routes and thermal insulating layers simultaneously is one of the major challenges to solar interface evaporation technology today. Herein, this work reports an arch-shaped wood evaporator (pine@carbon black (CB)-metal-organic framework-801 (MOF-801)-36%) for efficient, fast and continuous interfacial solar evaporation, which is composed of an arch-shaped wood substrate, MOF-801, and CB as a light absorption layer. The arch-shaped structure has a double-sided evaporation effect, which has a synergistic effect on augmenting solar evaporation efficiency. In addition, the in-situ growth of MOF-801 in pretreated wood microchannels renders the wood evaporator a significant function of reducing the equivalent enthalpy of evaporation due to the reduction of the hydrogen bonding density of water molecules as they pass through the wood channels. The best evaporation rate of the arch-shaped wood evaporator can reach 2.535 kg·m−2·h−1, and the efficiency reaches 93.7% under the irradiation of 1 sun illumination. Notably, it could be used for desalination and wastewater treatment to collect fresh water that meets drinking requirements set by the World Health Organization (WHO). This integrated evaporator provides an efficient way for commercial portable photothermal conversion and new ideas for advanced solar-driven water treatment technology. [ABSTRACT FROM AUTHOR]

The presence of dyes in wastewater poses a significant environmental challenge due to their permanence toxicity and potential to harm ecosystems. Because of their high porosity and adjustable characteristics, metal‐organic frameworks (MOFs) have become attractive materials for effective dye removal. Among various MOFs, zeolitic imidazolate frameworks (ZIFs) have garnered significant attention, especially ZIF‐8, for its excellent stability, significant porosity, adjustable pore size and remarkable adsorption capacity. This review article provides a comprehensive overview of recent advances in the implementation of ZIF‐8 and its composites for the removal of pollutants from wastewater. The various synthesis methods, structural characteristics and dye adsorption performance of ZIF‐8 and its composites are discussed. Furthermore, impact of the different factors such as pH, temperature, dye concentration, contact time etc. were also highlighted. Moreover, the detailed adsorption mechanism was also discussed. Finally, the current challenges and future perspectives in the production of materials based on ZIF‐8 for the removal of dyes were also presented. [ABSTRACT FROM AUTHOR]

Optoelectronics and photocatalysis are two rapidly developing photonic fields that are revolutionizing green energy, medicine, communications, and robotics. To advance these areas and explore new applications, there is a need for new materials and technologies that enable fast, scalable, and customizable production of high‐performing optoelectronics, including the future development of flexible devices. This review is focused on the strategies to synthesize novel, not fully explored materials and/or enhance their properties using the powerful method of laser processing. The discussion includes the laser treatment of MXenes, Metal‐Organic Frameworks, and perovskites, materials' advantages in terms of structural, electronic, and optical properties, and the role of different laser‐based techniques in boosting their performance. Additionally, there is a demonstration of the existing and potential applications of these three materials and their combinations, especially in optoelectronics and photocatalytic platforms. This review aims to provide a comprehensive understanding of the current state‐of‐the‐art in this field to help researchers identify opportunities and challenges in laser processing of emerging nanomaterials for optoelectronics and photocatalysis. [ABSTRACT FROM AUTHOR]

Metal–organic frameworks (MOFs) have been the subject of extensive scientific investigation in the last three decades and, currently, they make up one of the types of compounds most studied for their potential application in a wide range of distinct catalytic processes. Pristine MOF compounds provide several intriguing benefits for catalytic applications, including large interior surface areas and high densities of active sites; high catalytic reaction rates per volume; post-synthesis modifications with complementary catalytic groups; and the ability for multiple functional groups to catalyze the reaction. For most large-scale catalytic applications, including those in fuel processing, gas emission reduction, and chemical synthesis, pristine MOFs often show limited stabilities and opportunities for regeneration at high temperatures. As a result, the real applications of MOFs in these technologies are likely to be constrained, and a controlled thermal modification to prepare MOF-derivative compounds has been applied to induce crystalline structural changes and increase the structural stability of the MOFs, enhancing their potential applicability in more severe catalytic processes. Recent advances concerning the use of this strategy to boost the catalytic potential of MOF-derivative compounds, particularly for stable Zr-based MOFs, are outlined in this short review article. [ABSTRACT FROM AUTHOR]

The current spread of various viruses has negatively affected human life and health. Developing enhanced virus diagnostic techniques to mitigate future outbreaks is becoming vital. Metal‐organic frameworks (MOFs) have gained significant attention for their potential applications in virus detection because of their outstanding features, including high surface area, tunable properties, and adjustable pore size. Integrating nanomaterials with MOFs can also further enhance these properties, creating a new class of materials referred to as MOF‐based nanocomposites. This review paper provides an overview of the MOF‐based nanocomposites' status and future prospects for enhanced virus detection. The recent advances in the synthesis and functionalization of MOF and MOF‐based nanocomposites for virus detection are discussed. The paper describes the different types of detection platforms, including nucleic acid and immunological detection, as well as the mechanisms of MOF‐based sensors and the techniques used to synthesize MOFs and MOF‐based nanocomposites for virus detection. Additionally, the review paper explores the potential of integrating MOFs into real sensing devices and their prospects in real‐life applications. Finally, the paper examines the current challenges of these biosensing platforms. Overall, the review paper highlights the capability of MOFs and MOF‐based nanocomposites as versatile and practical platforms for virus detection and provides a comprehensive overview of the latest advancements in this area of research. [ABSTRACT FROM AUTHOR]

In the present manuscript, we report the synthesis of Zn-BDC MOF using a modified solvothermal method. As synthesized Zn-BDC MOF is exposed to gamma (γ) radiation doses, the dose exposure is between 0 and 50 kGy. It is observed that γ radiations are probably absorbed by zinc metal, and due to adsorption of γ the structure of the MOF is not changing, which suggests that the MOF structure regains its structural stability at higher γ radiation doses. Further, for the first time, we reported that the stability of Zn-BDC MOF is up to 35 kGy, it has been observed that, there is an irradiation effect on the higher porosity of MOF. The present findings strongly suggest the radiation-sensitive nature of Zn-BDC MOF. [ABSTRACT FROM AUTHOR]

Transition metal-based layered double hydroxides (LDHs) have been capable of working efficiently as catalysts in the basic oxygen evolution reaction (OER) for sustaining hydrogen production of alkaline water electrolysis. Nevertheless, exploring new LDH-based electrocatalysts featuring both remarkable activity and good stability is still in high demand, which is pivotal for comprehensive understanding and impressive improvement of the sluggish OER kinetics. Here, a series of bimetallic (Co and Mo) LDH arrays were designed and fabricated via a facile and controlled strategy by incorporating a Mo source into presynthesized Co-based metal-organic framework (MOF) arrays on carbon cloth (CC), named as ZIF-67/CC arrays. We found that tuning the Mo content resulted in gradual differences in the structural properties, surface morphology, and chemical states of the resulting catalysts, namely CoMox-LDH/CC (x representing the added weight of the Mo source). Gratifyingly, the best-performing CoMo0.20-LDH/CC electrocatalyst demonstrates a low overpotential of only 226 mV and high stability at a current density of 10 mA·cm−2, which is superior to most LDH-based OER catalysts reported previously. Furthermore, it only required 1.611 V voltage to drive the overall water splitting device at the current density of 10 mA·cm−2. The present study represents a significant advancement in the development and applications of new OER catalysts. [ABSTRACT FROM AUTHOR]

This paper reports on a scientometric analysis bolstered by human-in-the-loop, domain experts, to examine the field of metal-organic frameworks (MOFs) research. Scientometric analyses reveal the intellectual landscape of a field. The study engaged MOF scientists in the design and review of our research workflow. MOF materials are an essential component in next-generation renewable energy storage and biomedical technologies. The research approach demonstrates how engaging experts, via human-in-the-loop processes, can help develop a comprehensive view of a field's research trends, influential works, and specialized topics. A scientometric analysis was conducted, integrating natural language processing (NLP), topic modeling, and network analysis methods. The analytical approach was enhanced through a human-in-the-loop iterative process involving MOF research scientists at selected intervals. MOF researcher feedback was incorporated into our method. The data sample included 65,209 MOF research articles. Python3 and software tool VOSviewer were used to perform the analysis. The findings demonstrate the value of including domain experts in research workflows, refinement, and interpretation of results. At each stage of the analysis, the MOF researchers contributed to interpreting the results and method refinements targeting our focus on MOF research. This study identified influential works and their themes. Our findings also underscore four main MOF research directions and applications. This study is limited by the sample (articles identified and referenced by the Cambridge Structural Database) that informed our analysis. Our findings contribute to addressing the current gap in fully mapping out the comprehensive landscape of MOF research. Additionally, the results will help domain scientists target future research directions. To the best of our knowledge, the number of publications collected for analysis exceeds those of previous studies. This enabled us to explore a more extensive body of MOF research compared to previous studies. Another contribution of our work is the iterative engagement of domain scientists, who brought in-depth, expert interpretation to the data analysis, helping hone the study. [ABSTRACT FROM AUTHOR]

The toxicity of antibiotics in fresh water is an increasing concern of modern society for sustainable life. The elimination of hazardous materials like antibiotics from water is foremost task and for which promising technologies are required. Adsorption of contaminants from water is an efficient technique due its low cost, environment friendly nature and easy fabrication of adsorbent materials. Herein, we have discussed solvothermal synthesis method of MOFs for antibiotics pollution, health effects of antibiotics present in water and its removal from water. The recent developments for effectual decontamination of selective antibiotics are also summarized. Further, the adsorption mechanism for removal of antibiotics has been discussed to provide the base for the synthesis of targeted MOFs in future. In addition, cost analysis of pollutants removal using MOFs is also briefed. Finally, future perspectives are also discussed to lead the research directions. [ABSTRACT FROM AUTHOR]

Global crop yields suffer significant yearly losses due to several phytopathogens, insects, pests, weeds, and nutrient deficiencies. Agrochemicals are the main force behind the ongoing advancement in modern agriculture and meet the demand for food security by ensuring greater productivity in the agriculture sector. The primary benefit of nanomaterials in the agriculture field is that, they enable the targeted and accurate delivery of agrochemicals. This has created novel possibilities to support the long-term growth of green agriculture due to the current innovations in the field of nanotechnology. The main point of this article is to focus on the recent advancements in MOFs (Metal Organic Frameworks) based nanoplatforms for the protection of crops, encompassing the management of phytopathogens, pests, weeds, as well as enhancing the overall growth and yield of crops via delivery of fertilizers and phytohormones. Hence, the production of novel and fascinating nanomaterials are important for their effective use in various applications including nano fertilizers, nano pesticides, water remediation and detection of heavy metals and toxins. Additionally, it also involves the implementation of biosensor to identify hazardous substances present in soil and water and for the regulated release of agrochemicals in agricultural fields. Due to the remarkable properties of MOFs including sorptive, hybrid compositions, recognition, pore volume, large surface area, and catalytic properties, it is extensively used in agriculture. The review highlights the recent advancement of MOFs used in modern agriculture which are employed in various contexts in the form of nano fertilizers, nano pesticides, and the removal of agrochemicals as well as environmental remediation. Graphical abstract represents the advantages of MOFs and their mode of application in the agriculture field. [ABSTRACT FROM AUTHOR]

Hybrid nanomaterials have recently emerged as a new interface of nanobiocatalysis, serving as a host platform for enzyme immobilization. Enzyme immobilization in inorganic crystal nanoflowers and metal-organic frameworks (MOFs) has sparked the bulk of scientific interest due to their superior performances. Many breakthroughs have been achieved recently in the preparation of various types of enzyme@MOF and enzyme-hybrid nanoflower composites. However, it is unfortunate that there are few reviews in the literature related to enzyme@MOF and enzyme-hybrid nanoflower composites and their improved synthesis strategies and their applications in biotechnology. In this review, innovative synthetic strategies for enzyme@MOF composites and enzyme-hybrid nanoflower composites are discussed. Enzyme@MOF composites and enzyme-hybrid nanoflower composites are reviewed in terms of biotechnological applications and potential research directions. We are convinced that a fundamental study and application of enzyme@MOF composites and enzyme-hybrid nanoflower composites will be understood by the reader as a result of this work. The summary of different synthetic strategies for enzyme@MOF composites and enzyme-hybrid nanoflower composites and the improvement of their synthetic strategies will also benefit the readers and provide ideas and thoughts in the future research process. [ABSTRACT FROM AUTHOR]

Electrosynthesis coupled hydrogen production (ESHP) mostly involves catalyst reconstruction in aqueous phase, but accurately identifying and controlling the process is still a challenge. Herein, we modulated the electronic structure and exposed unsaturated sites of metal–organic frameworks (MOFs) via ligand defect to promote the reconstruction of catalyst for azo electrosynthesis (ESA) coupled with hydrogen production overall reaction. The monolayer Ni‐MOFs achieved 89.8 % Faraday efficiency and 90.8 % selectivity for the electrooxidation of 1‐methyl‐1H‐pyrazol‐3‐amine (Pyr−NH2) to azo, and an 18.5‐fold increase in H2 production compared to overall water splitting. Operando X‐ray absorption fine spectroscopy (XAFS) and various in situ spectroscopy confirm that the ligand defect promotes the potential dependent dynamic reconstruction of Ni(OH)2 and NiOOH, and the reabsorption of ligand significantly lowers the energy barrier of rate‐determining step (*Pyr−NH to *Pyr−N). This work provides theoretical guidance for modulation of electrocatalyst reconstruction to achieve highly selective ESHP. [ABSTRACT FROM AUTHOR]

Electrosynthesis coupled hydrogen production (ESHP) mostly involves catalyst reconstruction in aqueous phase, but accurately identifying and controlling the process is still a challenge. Herein, we modulated the electronic structure and exposed unsaturated sites of metal–organic frameworks (MOFs) via ligand defect to promote the reconstruction of catalyst for azo electrosynthesis (ESA) coupled with hydrogen production overall reaction. The monolayer Ni‐MOFs achieved 89.8 % Faraday efficiency and 90.8 % selectivity for the electrooxidation of 1‐methyl‐1H‐pyrazol‐3‐amine (Pyr−NH2) to azo, and an 18.5‐fold increase in H2 production compared to overall water splitting. Operando X‐ray absorption fine spectroscopy (XAFS) and various in situ spectroscopy confirm that the ligand defect promotes the potential dependent dynamic reconstruction of Ni(OH)2 and NiOOH, and the reabsorption of ligand significantly lowers the energy barrier of rate‐determining step (*Pyr−NH to *Pyr−N). This work provides theoretical guidance for modulation of electrocatalyst reconstruction to achieve highly selective ESHP. [ABSTRACT FROM AUTHOR]

In recent years, with advancements in nanotechnology and materials science, new enzyme immobilization strategies based on nanomaterials have continuously emerged. These strategies have shown significant effects on enhancing enzyme catalytic performance and stability due to their high surface area, good chemical stability, and ease of enzyme binding, demonstrating tremendous potential for industrial applications. Those methods that can rapidly synthesize nanocarriers under mild conditions allow for the one-step synthesis of nanocarriers and enzyme complexes, thereby exhibiting advantages such as simplicity of process, minimal enzyme damage, short processing times, and environmental friendliness. This paper provides an overview of simultaneous enzyme immobilization strategies accompanied by nanocarrier synthesis, including organic–inorganic hybrid nano-flowers (HNFs), metal–organic frameworks (MOFs), and conductive polymers (CPs). It covers their preparation principles, post-immobilization performance, applications, and existing challenges. [ABSTRACT FROM AUTHOR]

The H2O@HKUST‐1 and DMF@HKUST‐1 systems were experimental and computationally assessed, employing XRD/TGA/FT‐IR/DFT‐calculations, evidencing that H2O or DMF coordinated to Cu, modulating HKUST‐1 photocatalytic properties. DMF@HKUST‐1 has narrower bandgap promoting higher‐crystallinity and light‐harvesting. H2O@HKUST‐1 showed smaller particle sizing and sharp morphology. Theoretical models, (H2O)1@HKUST‐1 and (DMF)1@HKUST‐1, containing one coordinated molecule, elucidated bandgap modulation associated with infiltration. H2O@HKUST‐1/DMF@HKUST‐1 presented bandgaps [eV] of 3.6/3.4, by Tauc plots, and 3.55/3.26, by theoretical calculations, narrowing bandgap, compared with non‐solvated HKUST‐1(HKUST‐1NS). Both composites raised the valence band (VB) and lowered the conduction band (CB), but DMF@HKUST‐1 most raised VB. Topological analysis revealed that guests i) with higher electronic density, raised VB, and ii) induced π‐backbonding, lowering CB. DMF@HKUST‐1 presented a higher photocatalytic hydrogen evolution (μmol), 26.45, in the first 30 min of the reaction, nevertheless, H2O@HKUST‐1 presented a competitive activity, of 17.32. In large periods, H2O@HKUST‐1/DMF@HKUST‐1 showed practically the same hydrogen evolution, 45.50/49.03. [ABSTRACT FROM AUTHOR]

Metal-organic frameworks (MOFs) are attracting increasing interests as photocatalysts for solar-driven hydrogen production from water. This paper reports on a comparative study of using either acetic acid (AA) or trifluoroacetic acid (TFA) as the representative UiO-66 organic modulators for synthesizing visible light responsive UiO-66(Zr)-X (X: NH2 or NO2) photocatalysts for water splitting. The results show that photocatalytic hydrogen generation from a water/methanol mixture can be improved by varying the nature and amount of the modulator employed to prepare the different UiO-66(Zr)-X (X: NH2 or NO2) solid derivatives. UiO-66(Zr)-NH2 was the most active photocatalyst, followed by UiO-66(Zr)-NO2, both prepared with 12 equivalents of AA with respect to the organic ligand. This UiO-66(Zr)-NH2 solid was more active than the parent MOF in photocatalytic overall water splitting (OWS) (H2 and O2 production of 450 and 160 µmol·g−1, respectively, in 5 h; apparent quantum yield (AQY) at 400 nm of 0.06%) in the absence of methanol and compares favourably with analogous reports. Information on the photocatalytic activity of the most active solids of both series was obtained by means of a series of techniques, including ultraviolet–visible (UV–vis) diffuse reflectance, X-ray photoelectron spectroscopy (XPS), laser flash photolysis (LFP), electron spin resonance (ESR), photoluminescence and photoelectrochemical measurements together with density functional theory (DFT) calculations. The results showed that organic acid modulators can be used to enhance the photocatalytic activity of missing linker UiO-66 defective materials in solar-powered water splitting. [ABSTRACT FROM AUTHOR]

Metal-organic frameworks (MOFs) have shown significant potential as photocatalysts. It has been widely assumed that all catalytic active sites within MOFs are functional in photocatalytic reactions but for a three-dimensional MOF, whether the internal catalytic active sites can effectively absorb light and actively contribute to photocatalytic reactions remains to be explored. In this context, we synthesized a two-dimensional nanosheet MOF (2D-MOF) and a three-dimensional bulk MOF (3D-MOF) composed of Zr6 clusters and tetracarboxylic porphyrin (TCPP) by the approach described in the literature. Re(bpy)(CO)3Cl (bpy = 2,2′-bipyridine), which has remarkable CO2 photoreduction ability, was introduced to the two MOFs to create two new photocatalysts 2D-MOF-Re and 3D-MOF-Re, respectively. Photocatalytic CO2 reduction experiments show that based on the equal number of catalytic active sites, the CO turnover number (TON) of 2D-MOF-Re reaches 27.8 in 6 h, which is 50 times that of 3D-MOF-Re. The result shows that certain catalytic active sites inside the bulk MOF are inactive due to the inability to absorb light. This study illuminates the potential of the dimensional reduction approach in the design of photocatalysts to exploit the capabilities fully. [ABSTRACT FROM AUTHOR]

The sustainable management of wastewater through recycling and utilization stands as a pressing concern in the trajectory of societal advancement. Prioritizing the elimination of diverse organic contaminants is paramount in wastewater treatment, garnering significant attention from researchers worldwide. Emerging metal-organic framework materials (MOFs), bridging organic and inorganic attributes, have surfaced as novel adsorbents, showcasing pivotal potential in wastewater remediation. Nevertheless, challenges like limited water stability, elevated dissolution rates, and inadequate hydrophobicity persist in the context of wastewater treatment. To enhance the performance of MOFs, they can be modified through chemical or physical methods, and combined with membrane materials as additives to create membrane composite materials. These membrane composites, derived from MOFs, exhibit remarkable characteristics including enhanced porosity, adjustable pore dimensions, superior permeability, optimal conductivity, and robust water stability. Their ability to effectively sequester organic compounds has spurred significant research in this field. This paper introduces methods for enhancing the performance of MOFs and explores their potential applications in water treatment. It delves into the detailed design, synthesis strategies, and fabrication of composite membranes using MOFs. Furthermore, it focuses on the application prospects, challenges, and opportunities associated with MOF composite membranes in water treatment. [ABSTRACT FROM AUTHOR]

Metal-insulator-metal (MIM) cavity as a lithography-free structure to control light transmission and reflection has great potential in the field of optical sensing. However, the dense top metal layer of the MIM prohibits any external medium from entering the dielectric insulation layer, which limits the application of the cavity in the sensing field. Herein, we demonstrate a series of monolithic metal-organic frameworks (MOFs) based MIM cavities, which are treated by plasma etching to provide channels for chemical diffusion and to advance sensing. We modulate the bandwidth of the MIM filters by controlling the MOF thickness as insulator layers. Oxygen plasma-etching is applied to build channels on the top metal layer without altering their saturation and brightness for chemical sensing performance. The etching time regulates the number and size of channels on the top metal layer. Sensing behavior is demonstrated on the plasma-etched MOFs-based MIM cavity when external chemicals diffuse in the cavity. In addition, we generate patterned structure of the MOFs-based MIM cavity via plasma-mask method, which can transfer to different substrates and produce a controllable structure color change for chemical sensing. Our MIM cavity may promote the advancement and applications of structural color in security imaging, color display, information anticounterfeiting, and color printing. [ABSTRACT FROM AUTHOR]

Copyright of Rare Metals is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Metal–organic frameworks (MOFs) contain a large surface area, a flexible structure, well organised pores, and homogeneous metal sites, making them promising models for nanostructured materials such carbon-based porous materials, metal oxides, phosphides, and carbides, and their composites. In addition, it has been shown that all of these MOF-produced nanomaterials perform exceptionally well in electrolytic power storage and transformation systems, particularly lithium and sodium ion batteries. Lithium-ion batteries (LIBs) with impressive performance have become an essential part of the electronics industry. High surface area MOFs with adaptable chemical structures and simple changes have been widely used in numerous applications, including gas absorption, drug delivery, and sensors. MOFs and their derivatives have also been utilised as efficient electrode components for LIBs. The present article first reviews the purpose of LIBs along with their foundations. Later, cutting-edge research on individual MOFs, composites based on MOFs, and products deriving from MOFs (metal, oxides and sulphides of metal) for LIB electrode materials is covered. Important process of synthesis and characterization methods for MOF based nanostructure materials are discussed in this review article. Finally, a brief discussion is made about the applications restrictions and potential future applications for the use of MOFs in LIBs. [ABSTRACT FROM AUTHOR]

Efficient electron transfer from photosensitizer to catalytic sites is crucial for effective artificial photosynthesis, yet it remains a significant challenge. Herein, it is reported that simple fluorination of the organic linkers in the MIL‐101(Fe) photocatalyst results in a remarkable threefold increase in the photocatalytic CO2‐to‐CO conversion rate (688 µmol g−1 h−1) compared to the pristine counterpart (230 µmol g−1 h−1). It is unveiled that, instead of directly modifying the electron structure of MIL‐101(Fe), the fluorinated linkers enhance the interaction between the discrete photocatalyst and photosensitizer ([Ru(bpy)3]2+, bpy = 2,2'‐bipyridine) via hydrogen bonding, thereby facilitating their intermolecular electron transfer. Most importantly, it is also demonstrated that this performance boosting strategy can be applied to other Fe‐based metal–organic frameworks (MOFs) photocatalysts such as MIL‐53(Fe) and MIL‐88(Fe). The present work not only underscores the fluorination of organic linkers as a generic promising approach to enhance the photocatalytic performance of MOF‐based catalysts, but also holds significant implications for photosynthesis and catalytic processes reliant on intermolecular electron transfer as an important step. [ABSTRACT FROM AUTHOR]

The depletion of reliable energy sources and the environmental and climatic repercussions of polluting energy sources have become global challenges. Hence, many countries have adopted various renewable energy sources including hydrogen. Hydrogen is a future energy carrier in the global energy system and has the potential to produce zero carbon emissions. For the non-fossil energy sources, hydrogen and electricity are considered the dominant energy carriers for providing end-user services, because they can satisfy most of the consumer requirements. Hence, the development of both hydrogen production and storage is necessary to meet the standards of a "hydrogen economy". The physical and chemical absorption of hydrogen in solid storage materials is a promising hydrogen storage method because of the high storage and transportation performance. In this paper, physical hydrogen storage materials such as hollow spheres, carbon-based materials, zeolites, and metal–organic frameworks are reviewed. We summarize and discuss the properties, hydrogen storage densities at different temperatures and pressures, and the fabrication and modification methods of these materials. The challenges associated with these physical hydrogen storage materials are also discussed. [ABSTRACT FROM AUTHOR]

Rationally designed multiporphyrinic architectures for boosting photodynamic therapy (PDT) have attracted significant attentions recently years due to their great potential for light‐mediated generation of reactive oxygen species. However, there is still a gap between the structure design and their PDT performance for biomedical applications. This tutorial review provides a historical overview on (i) the basic concept of PDT for deeply understanding the porphyrin‐mediated PDT reactions, (ii) developing strategies for constructing porphyrinic architectures, like nanorings, boxes, metal‐organic frameworks (MOFs), covalent‐organic frameworks (COFs), vesicles, etc., where we classified into the following three categories: multiporphyrin arrays, porphyrinic frameworks, and others porphyrin assemblies, (iii) the various application scenarios for clinical cancer therapy and antibacterial infection. Also, the existing challenges and future perspectives on the innovation of porphyrinic architectures for clinical PDT applications are mentioned in the end section. Moreover, the porphyrinic nanomaterials with atomically precise architectures provide an ideal platform for investigating the relationship between structures and PDT outputs, design of personalized "all‐in‐one" theranostic agents, and the popularization and application in wider biomedical fields. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Tiangong University is the property of Journal of Tianjin Polytechnic University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The shape and topology of pores have significant impacts on the gas storage properties of nanoporous materials. Metal–organic frameworks (MOFs) are ideal materials with which to tailor to the needs of specific applications, due to properties such as their tunable structure and high specific surface area. It is, therefore, particularly important to develop descriptors that accurately identify the topological features of MOF pores. In this work, a topological data analysis method was used to develop a topological descriptor, based on the pore topology, which was combined with the Extreme Gradient Boosting (XGBoost) algorithm to predict the adsorption performance of MOFs for methane/ethane/propane. The final results show that this descriptor can accurately predict the performance of MOFs, and the introduction of the topological descriptor also significantly improves the accuracy of the model, resulting in an increase of up to 17.55% in the R2 value of the model and a decrease of up to 46.1% in the RMSE, compared to commonly used models that are based on the structural descriptor. The results of this study contribute to a deeper understanding of the relationship between the performance and structure of MOFs and provide useful guidelines and strategies for the design of high-performance separation materials. [ABSTRACT FROM AUTHOR]

Despite exhaled human breath having enabled noninvasive diabetes diagnosis, selective acetone vapor detection by fluorescence approach in the diabetic range (1.8–3.5 ppm) remains a long‐standing challenge. A set of water‐resistant luminescent metal‐organic framework (MOF)‐based composites have been reported for detecting acetone vapor in the diabetic range with a limit of detection of 200 ppb. The luminescent materials possess the ability to selectively detect acetone vapor from a mixture comprising nitrogen, oxygen, carbon dioxide, water vapor, and alcohol vapor, which are prevalent in exhaled breath. It is noteworthy that this is the first luminescent MOF material capable of selectively detecting acetone vapor in the diabetic range via a turn‐on mechanism. The material can be reused within a matter of minutes under ambient conditions. Industrially pertinent electrospun luminescent fibers are likewise fabricated alongside various luminescent films for selective detection of ultratrace quantities of acetone vapor present in the air. Ab initio theoretical calculations combined with in situ synchrotron‐based dosing studies uncovered the material's remarkable hypersensitivity toward acetone vapor. Finally, a freshly designed prototype fluorescence‐based portable optical sensor is utilized as a proof‐of‐concept for the rapid detection of acetone vapor within the diabetic range. [ABSTRACT FROM AUTHOR]

Metal-organic frameworks (MOFs) are a rising family of compounds consisting of metal ions (nodes) linked with organic ligands (linkers) to form crystalline structures. Among various methods, an accessible and convenient method with household appliances was adopted to produce the HKUST-1, a type of MOF synthesized using copper (II) acetate monohydrate and 1,3,5-benzenetricarboxylic acid. The mechanochemical synthesis method, which involved a solvent-free ball-milling technique, was utilized in this study through a mortar and pestle. After the synthesis of HKUST-1, its adsorption capacity of CO2 was obtained. Then, the HKUST-1 sample was regenerated by heating it in a toaster oven. Finally, the morphology of the synthesized HKUST-1 sample was characterized by scanning electron microscopy (SEM). Our experimental results confirmed that the HKUST-1 with CO2 adsorption capacity could be synthesized through a convenient and mechanochemical method. The significance of this research lies in the potential impact of an accessible and environmentally friendly synthesis method, which requires no solvents and avoids the need for high-energy laboratory equipment. Additionally, the study reveals the promising CO2 adsorption capacity of the mechanochemically synthesized HKUST-1. Despite the observed minimal CO2 adsorption, this study establishes the groundwork for further exploration of low-cost and high-productivity MOF synthesis using the accessible mechanochemical approach. [ABSTRACT FROM AUTHOR]