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- W3010598678 abstract "We report the preparation and application of a heterostructured photoelectrocatalyst comprising carbon nanoparticles (CNPs) and boron codoped BiVO4 and WO3 for the removal of an organic dye pollutant in water. The materials, synthesized by hydrothermal method, were characterized by X-ray diffraction, diffuse reflectance UV–visible spectroscopy, energy-dispersive X-ray spectroscopy, and electron microscopy. The catalysts were immobilized on treated titanium sheets by drop-casting. The fabricated electrodes were characterized by linear sweep voltammetry (LSV) and chronoamperometry. Diffuse reflectance spectroscopy of the catalysts reveals that the incorporation of CNPs and B into the structure of monoclinic BiVO4 enhanced its optical absorption in both UV and visible regions. The LSV measurements carried out in 0.1 M Na2SO4 showed that the BiVO4- and WO3-based photoelectrode demonstrated significant photoactivity. CNP/B-BiVO4 and CNP/B-BiVO4/WO3 photoanodes gave photocurrent densities of approximately 0.83 and 1.79 mA/cm2, respectively, at 1.2 V (vs 3 M Ag/AgCl). The performance of the electrodes toward degradation of orange II dye was in the order BiVO4 < B-BiVO4 < WO3 < CNP-BiVO4 < CNP/B-BiVO4 < CNP/B-BiVO4/WO3, and the apparent rate constants obtained by fitting the experimental data into the Langmuir Hinshelwood kinetic model are 0.0924, 0.1812, 0.254, and 0.845 h–1 for BiVO4, WO3, CNP/B-BiVO4, and CNP/B-BiVO4/WO3, respectively. The chemical oxygen demand abatement after 3 h of electrolysis at the best performing photoanode was 58%. The study showed that BiVO4 and WO3 are promising anodic materials for photoelectrocatalytic water treatment plant." @default.
- W3010598678 created "2020-03-13" @default.
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- W3010598678 date "2020-03-03" @default.
- W3010598678 modified "2023-10-13" @default.
- W3010598678 title "Solar-Light-Responsive Titanium-Sheet-Based Carbon Nanoparticles/B-BiVO<sub>4</sub>/WO<sub>3</sub> Photoanode for the Photoelectrocatalytic Degradation of Orange II Dye Water Pollutant" @default.
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- W3010598678 doi "https://doi.org/10.1021/acsomega.9b02148" @default.
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