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[Display omitted] • The environmentally friendly magnetic MS-Sp-P [5] -bodipy microcapsule sensor has successfully synthesized for the selective and sensitive detection of Cu(II) and Hg(II) ions in aqueous media. • The magnetic MS-Sp-P [5] -bodipy microcapsule sensor surface was characterized by several techniques such as FT-IR, SEM, XRD. • The photophysical measurements were fluorometrically performed for the detection of Hg(II) and Cu(II) ions in the fluorescence spectroscopy that the limit of detection is 0.06 µM and 2.27 µM. respectively. In this study, a new bodipy/pillar[5]arene functionalized magnetic MS-Sp-P[5]-bodipy microcapsule sensor was prepared based on the use of environmentally friendly for the selective and sensitive detection of Cu(II) and Hg(II) ions in aqueous media. SEM results used in the characterization process of the materials synthesized at each stage confirmed the structural and morphological changes in the pore structure, while other characterization results (FT-IR and XRD) elucidated the role of pillar[5]arene compound and bodipy dye in the synthesis of magnetic microcapsule sensors. The colloidal solution of MS-Sp-P[5]-bodipy (water/ethanol)) showed two fluorescence bands centered at 402 and 540 nm. The detection limits of MS-Sp-P[5]-bodipy for Hg(II) and Cu(II) were calculated to be 0.06 µM and 2.27 µM, respectively (at 540 nm). The linear range of the magnetic sensor for Hg(II) and Cu(II) was found to be in the range of 1–150 µM and 10–150 µM, respectively. The experimental results (response time, pH, temperature, sensitivity and selectivity) demonstrated the applicability and potential of the prepared magnetic microcapsule sensor for the detection of Cu(II) and Hg(II) in water and tap water samples containing heavy metal ions. [ABSTRACT FROM AUTHOR]

• We successfully obtained a fluorescent microcapsule sensor, Sp-APTES-monoBODIPY . • The fluorescent microcapsule was used for both sensitive&selective detection and removal of Cu (II) ions. • The fluorescent microcapsule surface was characterized by FT-IR, SEM, XRD. • The limit of detection is 4.9 × 10−7 M. • It was also calculated the maximum isotherm parameters and adsorption capacities that is 25 mg.g−1. Sporopollenin microcapsules (sporopollenin exine capsule (SEC)) have characteristic holes with 25 μm diameter and can be chemically obtained from the natural pollen grains. In this paper, a BODIPY derivative was successfully immobilized on SEC modified with 3-(aminopropyl)triethoxysilane (APTES) to obtain a fluorescent microcapsule sensor ( Sp-APTES-monoBODIPY ) and then it was used for both sensitive-selective detection and removal of Cu (II) ions. The prepared surfaces were characterized by several techniques like FT-IR, SEM, XRD. The photophysical measurements (response time, pH, complex stoichiometry, etc.) were fluorometrically performed for the detection of Cu (II) ions in the fluorescence spectroscopy. The limit of detection (LOD) and quantified (LOQ) are 4.9 × 10−7 M and 1.2 × 10−6 M for the detection of Cu (II) which is challenging, respectively. Otherwise, about the removal of Cu (II) with Sp-APTES-monoBODIPY fluorescent microcapsule, we also calculated the maximum isotherm parameters and adsorption capacities from the Freundlich, Dubinin-Radushkevich and Langmuir equations. When the Sp-APTES-monoBODIPY was used as an adsorbent for the removal of Cu (II) ions, the adsorption kinetics and isotherms well fitted the pseudo-second-order model and the Langmuir model, respectively. The maximum adsorption capacity is 25 mg.g−1. All results showed that the synthesized fluorescent microcapsule can be used as an ideal adsorbent and sensor material of Cu (II) ions for simultaneous environmental cleaning applications. [ABSTRACT FROM AUTHOR]

In this study, environmentally friendly Sp-EN-CPA was synthesized to effectively remove Cr(VI) ions from aqueous solutions and wastewater. The Sp (sporopollenin) was successfully modified with ethylenediamine (EN) compound. Finally, 1,8-bis(3-chloropropoxy) anthracene-9,10-dion (CPA) compound was immobilized on the modified sporopollenin (Sp-EN). The structural and chemical properties of the newly synthesized Sp-EN-CPA adsorbent were characterized by scanning electron microscopy and Fourier-transform infrared spectroscopy images. The impact of experimental parameters such as concentration, contact duration, and temperature, adsorbent amount, and pH on the removal of Cr(VI) ions in the wastewater and aqueous solution were researched. Some adsorption isotherms were used to interpret the formation of the reaction of Cr(VI) ions attachment to the adsorbent surface. The effective elimination (97%) of Cr(VI) ions using Sp-EN-CPA compound was performed at pH 2. The maximum amount of Sp-EN-CPA for the adsorption of Cr(VI) ions in the wastewater and aqueous solution was found to be 0.075 g. Adsorption remained stable after 150 min. The ΔH° values of Cr(VI) ions in aqueous solution and wastewater in the 25°C–50°C temperature range were found to be 18.82 and 26.18 kJ mol–1, and ΔS° values were found to be 103.79 and 123.01 kJ mol–1, respectively. The average adsorption energy for the Sp-ENCPA adsorbent was found to be 26.73 kJ mol–1 for Cr(VI) ions in aqueous solution. Sp-EN-CPA exhibited an important achievement for the removal of Cr(VI) ions and can be suggested for the effectively elimination of Cr(VI) ions from the wastewaters. [ABSTRACT FROM AUTHOR]

[Display omitted] • A fluorescent eco-friendly sensor was prepared, Sp-P[5]-bodipy . • The bio-based sensor was used for sensitive&selective detection of both Cu (II) and Hg (II) ions. • Sp-P[5]-bodipy has low LOD's for both Cu(II) (6.16 µM) and Hg(II) ions (3.42 µM), respectively. • Nature can be preserved using the functionalized sporopollenin materials. The detection of heavy metals in wastewater with eco-friendly materials and sustainable processes is extremely important for the environment and human health. In this study, sporopollenin, which is a natural polymer material, was derivatized with an innovative macrocyclic compound, and then fluorescence property was acquired. Bodipy and Pillar[5]arene were used to prepare fluorescent microcapsules (Sp-P[5]-bodipy) based on organic compounds. The compounds used in the preparation of fluorescent microcapsules were synthesized by conventional procedures and characterized by several methods such as NMR, FT-R, mass spectroscopy, elemental analysis, and melting point. The characterization of the obtained surfaces was carried out with TGA, FT-IR and SEM device in the determination of the surface morphology and the functional groups. The target fluorescent microcapsules, Sp-P[5]-bodipy, were performed using fluorescence spectroscopy to detect metal ions in aqueous solutions that the modified surfaces encapsulated Hg(II) and Cu(II) ions, respectively. Moreover, some parameters such as pH, temperature, response time, limit of detection (LOD) and binding stoichiometry were examined for practical chemo-sensor applications that Sp-P[5]-bodipy have a low LOD for both Cu(II) (6.16 µM) and Hg(II) ions (3.42 µM). [ABSTRACT FROM AUTHOR]

Sporopollenin is a natural substance found in plant walls and is highly resistant to external factors. In this paper, we designed an eco-friendly hybrid material, Sp-EDA-BODIPY , based on sporopollenin microcapsule and BODIPY to remove and detect metal ions. The fluorescent surface was fully characterized with various methods such as XRD, SEM, FT-IR, fluorescence spectroscopy. The fluorescent microcapsule sensor showed fluorometrically a remarkable quenching effect in the presence of Cu (II) ion, via the complexation mechanism that LOD it was calculated as 0.773 μM. As a result of the competing ion experiments, Sp-EDA-BODIPY also has a high selective for Cu (II) ion toward another the studied metal ions. Otherwise, we also calculated the adsorption capacities and the maximum isotherm parameters and from the Freundlich, Langmuir, and Dubinin-Radushkevich equations for the removal of Cu (II) with Sp-EDA-BODIPY fluorescent microcapsule. The maximum adsorption capacities of Cu (II) on Sp-EDA-BODIPY were calculated to be 28.65, 31.25, 34.02, and 37.74 mg/g at different temperatures (298, 308, 318, and 328 K), respectively. The adsorption experimental results were closer to Langmuir adsorption isotherm and pseudo-second-order models. Thermodynamic data showed that the adsorption process was endothermic, possible, and spontaneous. [Display omitted] • In this paper, we successfully obtained a fluorescent microcapsule sensor, Sp-EDA-BODIPY. • The Sp-EDA-BODIPY was used for the detection and removal of Cu (II) ions. • The Cu (II) detection limit of the Sp-EDA-BODIPY is 0.773 μM. • The maximum adsorption capacities of Cu (II) on Sp-EDA-BODIPY were calculated to be 28.65, 31.25, 34.02, and 37.74 mg/g at different temperatures (298, 308, 318, and 328 K), respectively. [ABSTRACT FROM AUTHOR]

In this study, microcapsules of L. clavatum sporopollenin (f-sporopollenin) immobilized with BODIPY were developed. XRD, SEM, and FTIR did characterization of f-sporopollenin, showing that the BODIPY dye was successfully introduced, and the microcapsule structure of f-sporopollenin microcapsules was well preserved after the post-grafting procedure. When Cu(II) was added to the f-sporopollenin suspension, the fluorescence intensity gradually decreased at ~541 nm. Furthermore, adding Cu(II) to suspension mixtures in the presence of other cations resulted in dramatic fluorescent quenching, which showed that it was excellent selectivity for Cu(II) ions. The linear detection range for low concentration Cu(II) detection was 1 – 10 µM, and the detection limit was 7.41 × 10−7 M (0.741 µM). Prepared f-sporopollenin was also used as an adsorbent to remove Cu(II) ions from aqueous solutions. The adsorption study showed that the optimum adsorption conditions were pH = 6.0, amount of adsorbent 0.04 g, initial Cu(II) concentration at 25 mg/L, and contact time of 120 min. Adsorption isotherms and kinetics have been studied and found to fit the Langmuir isotherm model and the pseudo-second-order kinetic. The theoretical maximum Langmuir adsorption capacity of Cu(II) towards f-sporopollenin was 22.71 mg/g. Therefore, f-sporopollenin shows promise for removing and detecting Cu(II) ions in water. [Display omitted] • BODIPY functionalized sporopollenin was prepared, which can be applied both to detect and remove Cu(II) ions. • The surface of f-sporopollenin was characterized by FT-IR, SEM, and XRD techniques. • The linear detection range for low concentration Cu(II) detection was 1–10 µM, the limit of detection (LOD) was 0.741 µM. • The theoretical maximum Langmuir adsorption capacity of the f-sporopollenin for Cu(II) was 22.71 mg/g. [ABSTRACT FROM AUTHOR]

In this investigation, a novel environmentally friendly functionalized fluorescent Sp-TAB hybrid material was advanced for the sensitive detection of environmentally polluting Hg(II). The characterization of the synthesized fluorescent Sp-TAB hybrid material using SEM and EDX provided insights into morphological and structural changes in the material's pore structure, while XRD and FT-IR analyses revealed the impact of the prepared material at each stage. Optimal parameters such as temperature, contact time, and pH influencing Hg(II) ion detection were determined. Application of the fluorescent Sp-TAB hybrid material was determined a detection limit (LOD) of 4.87 μM for Hg(II) ions. This study shows the potential of the immobilization-enhanced fluorescent Sp-TAB hybrid material for sensitive Hg(II) ion detection in tap water. Additionally, this study is believed to serve as a model for sensitive and practical detection applications of heavy metals in the future. [Display omitted] • Environmentally friendly fluorescent Sp-TAB hybrid material was successfully synthesized for the detection of Hg(II) ions. • The fluorescent Sp-TAB hybrid material surface was characterized by some techniques such as FT-IR, SEM, EDX, TGA, and XRD. • The photophysical measurements were fluorometrically performed for the detection of Hg(II) ions (LOD: 4.87 µM). [ABSTRACT FROM AUTHOR]