A Multistep Ion Exchange Approach for Fabrication of Porous BiVO4 Nanorod Arrays on Transparent Conductive Substrate

BiVO4 is recognized as a promising semiconductor for photoelectrochemical (PEC) applications. However, the lack of synthesis methods to prepare high-quality nanostructural BiVO4 film is rarely reported in the PEC field. In this study, we report a novel synthesis approach to prepare one-dimensional B...

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Bibliographic Details
Published inACS sustainable chemistry & engineering Vol. 4; no. 9; pp. 4492 - 4497
Main Authors Liu, Cong, Su, Jinzhan, Zhou, Jinglan, Guo, Liejin
Format Journal Article
LanguageEnglish
Published American Chemical Society 06.09.2016
Subjects
Photoelectrochemical application
Multistep ion exchange approach
Porous bismuth vanadate
Solvothermal−hydrothermal−annealing process
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Summary:BiVO4 is recognized as a promising semiconductor for photoelectrochemical (PEC) applications. However, the lack of synthesis methods to prepare high-quality nanostructural BiVO4 film is rarely reported in the PEC field. In this study, we report a novel synthesis approach to prepare one-dimensional BiVO4 nanowire arrays using a multistep ion exchange approach through a solvothermal–hydrothermal–annealing process. The resulting BiVO4 electrodes showed a nanorod structure with high porosity. In particular, the aspect ratio surface of the BiVO4 nanostructure was found favorable for its PEC application. The BiVO4 nanostructure with an optimized synthesized condition showed efficient PEC water oxidation with a photocurrent of 1.67 mA/cm2 at 1.83 V (vs RHE).
ISSN:2168-0485
2168-0485
DOI:10.1021/acssuschemeng.6b00971