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Pd/PdO‐decorated BiVO4 nanoparticles were prepared by two‐step router: (i) monoclinic scheelite BiVO4 nanoparticles were fabricated via the co‐precipitation process in the presence of urea; (ii) Pd/PdO was decorated BiVO4 surface by the combination of by precipitation method and annealing process. The as‐synthesized catalysts were characterized by X‐ray powder diffraction (XRD) analysis, Raman spectra, X‐ray photoelectron (XPS) spectra, UV‐visible diffuse reflectance (UV‐vis DRS) spectra, and photoluminescence (PL) spectroscopy. The photocatalytic performance of Pd/PdO‐decorated BiVO4 samples exhibited excellent photodegradation of rhodamine B as well as the OH• radical generation under LED light irradiation as a comparison with the bare BiVO4. This excellent outcome is due to the reduced electron/hole recombination of Pd/PdO‐decorated BiVO4 samples, which was confirmed by PL characterization. Therefore, the fabrication of semiconductors with a combination of noble metal/oxides are good candidates for enhancement of their photocatalytic performance. [ABSTRACT FROM AUTHOR]

BiVO4 and g‐C3N4 have gain attention for their potential in sustainable energy and environmental applications due to their visible light absorption properties. However, their limitations in terms of visible light absorption and electron‐hole separation have prompted efforts to enhance their energy utilization and reduce electron‐hole recombination. In our study, we investigated the fabrication of a ternary Ag/g‐C3N4/BiVO4 composite for Rhodamine B (RhB) degradation under visible light irradiation using a combination of photo‐deposition and calcination methods. Our findings demonstrate that the Ag/g‐C3N4/BiVO4 outperforms g‐C3N4, BiVO4, and g‐C3N4/BiVO4 in terms of RhB degradation rate. This improvement can be attributed to the improved light absorption and synergetic effects on charge transfer and photoelectron‐hole recombination resulting from the incorporation of Ag into the ternary system. This ternary Ag/g‐C3N4/BiVO4 composite has potential as a photocatalyst for the removal of organic pollutants due to its reasonable design and superior effectiveness. [ABSTRACT FROM AUTHOR]

The synthesis of N‐pyridinylamides has been realized by particularly efficient technologies via bimetallic organic (Co/Fe‐MOF) catalyzed oxidative amidation between 2‐aminopyridine and benzaldehyde. The C−N bond was formed with the presence of a catalyst (Co/Fe‐MOF) as a Lewis acid and the oxidant as DTBP. The oxidative amidation reaction was conducted in 1,4‐dioxane at 120 °C with a wide range of substrates producing the corresponding amide products in good to 94 % yields. Experimental results illustrated that This accessibly offers a significant improvement over the earlier successful attempts in forming N‐pyridinyl amides. The Co/Fe‐MOF material was synthesized by solvothermal methods with the salt mixture of Fe(NO3)3.9H2O and Co(NO3)2.6H2O. The material was determined by modern analytic methods like X‐ray diffraction (XRD), Fourier‐transform Infrared spectroscopy (FT‐IR), Scanning Electron Microscope (SEM), and N2 adsorption/desorption isotherms. [ABSTRACT FROM AUTHOR]

In this study, a novel mixed‐matrix membrane (MMM) based on covalent incorporation of poly(styrene‐alt‐maleic anhydride) (PSMA) with a metal‐organic framework (MOF) UiO‐66‐NH2 was prepared and utilized for dye removal from aqueous solution. The fabrication of PSMA and UiO‐66‐NH2 was carried out by the amidation reaction between the maleic anhydride ring and amino functional group affording crosslinked MOF/PSMA membrane. The separate UiO‐66‐NH2 and PSMA solutions were mixed before cast films were produced. The MMM was prepared with final UiO‐66‐NH2 wt % content from 0 to 30 % in each membrane. The formation of MMM was confirmed with FT‐IR, PXRD, TGA, SEM, and XPS analysis. The MMM having high adsorption capacity was used for the separation of methylene blue (MB) and methyl orange (MO) as organic dye pollutants commonly found in wastewater. The MMM could be recycled and still maintained 75 and 52 % retention of MB and MO on the third reuse cycle, respectively. The results suggest that the MOF incorporated PSMA was an outstanding membrane for the development of filtration techniques for decontamination of water resources. [ABSTRACT FROM AUTHOR]