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Journal of Materials Science
Erschienen in: Journal of Materials Science 16/2018

17.05.2018 | Chemical routes to materials

Facile fabrication of hierarchical BiVO4/TiO2 heterostructures for enhanced photocatalytic activities under visible-light irradiation

verfasst von: Liang Shi, Chonglei Xu, Xun Sun, Hua Zhang, Zhaoxin Liu, Xiaofei Qu, Fanglin Du

Erschienen in: Journal of Materials Science | Ausgabe 16/2018

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Abstract

BiVO4/TiO2 nanocomposites were fabricated by a facile wet-chemical process, followed by the synthesis of TiO2 hierarchical spheres via hydrothermal method. The BiVO4/TiO2 nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV–Vis diffuse reflectance spectroscopy and X-ray photoelectron spectroscopy. The results showed that prepared TiO2 presented hierarchical spherical morphology self-assembled by nanoparticles and an anatase–brookite mixed crystal phase. The introduction of monoclinic BiVO4 components retained the hierarchical structures and expanded the light response to around 510 nm. Type II BiVO4/TiO2 heterostructured nanocomposites exhibited improved photocatalytic degradation towards methylene blue under visible-light irradiation, especially for the composite photocatalysts with atomic Ti/Bi = 10, which showed double degradation rate than that of pure BiVO4. The enhanced photocatalytic mechanism of the heterostructured BiVO4/TiO2 nanocomposites was discussed as well.
Vorheriger Artikel Facile preparation of porous carbon nitride for visible light photocatalytic reduction and oxidation applications
Nächster Artikel One-pot preparation of surface-functionalized barium titanate nanoparticles for high-K polystyrene composite films prepared via floating method

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Metadaten
Titel
Facile fabrication of hierarchical BiVO4/TiO2 heterostructures for enhanced photocatalytic activities under visible-light irradiation
verfasst von
Liang Shi
Chonglei Xu
Xun Sun
Hua Zhang
Zhaoxin Liu
Xiaofei Qu
Fanglin Du
Publikationsdatum
17.05.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 16/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2442-x

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