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- W3030441763 abstract "In the present study, pristine BiVO 4 , TiO 2 and BiVO 4 /TiO 2 core-shell heterostructured nanoparticles are prepared by hydrothermal methods and studied for structural, morphological, optical, photoelectrochemical water splitting and photocatalytic degradation of methylene blue as an organic pollutant. Both pristine BiVO 4 and TiO 2 exhibit poor PEC and PC performance under visible light illumination. However, an enhanced PEC and PC activity in BiVO 4 /TiO 2 core-shell heterostructure is observed due to high solar energy absorption and superior charge separation properties in core-shell nanoparticles. The photoelectrode prepared using BiVO 4 /TiO 2 core-shell nanoparticles exhibit a photocathode behavior and produced cathodic photocurrent, however, the pristine BiVO 4 and TiO 2 photoelectrodes act as photoanode and produced anodic photocurrent. This behavior of change in current direction is also observe in the Mott-Schottky analysis where the BiVO 4 /TiO 2 core-shell nanoparticles photoelectrode exhibits the positive slow showing p-type semiconducting behavior. The change in cathodic photoresponse in core-shell nanoparticles in comparison to anodic photoresponse of BiVO 4 and TiO 2 nanoparticles is explained in terms of the variations in the work function values. These results highlight the advantages of core-shell nanoparticle of suitable materials for photocatalytic and photoelectrochemical applications. • Synthesis of TiO 2 /BiVO 4 core-shell heterostructure nanoparticles by wet-chemical technique. • TEM confirm the formation of core-shell nanoparticles. • Staggered core-shell heterostructure promotes charge separation and transfer at the junction. • Enhanced photoelectrochemical water splitting observed in core-shell heterostructure. • Sensitivity of core-shell particles depends on work function values and core-shell configuration." @default.
- W3030441763 created "2020-06-05" @default.
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- W3030441763 date "2020-09-01" @default.
- W3030441763 modified "2023-10-17" @default.
- W3030441763 title "BiVO4/TiO2 core-shell heterostructure: wide range optical absorption and enhanced photoelectrochemical and photocatalytic performance" @default.
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- W3030441763 doi "https://doi.org/10.1016/j.mtchem.2020.100283" @default.
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