Issue 95, 2015

Graphene-modified BiMo0.03V0.97O4 thin-film photoanode for enhanced photoelectrochemical water splitting performance

Abstract

In this study, graphene is coated on the surface of an Mo-doped BiMo0.03V0.97O4 (BiMoVO) film by galvanostatic reduction deposition. The BiMoVO/graphene (BiMoVO/G) thin-film photoanode exhibits the optimal photoelectrochemical performance with the graphene deposition time of 600 s. The photoinduced current density is 3.5 mA cm−2 at the bias potential of 1 V, which increases by approximately 2.3 times that of the BiMoVO thin-film photoanode. Moreover, the BiMoVO/G photoanode shows higher photoelectrochemical stability as well. The improvement of the photoelectrochemical properties is attributed to the graphene coating, which acts as the receptor of the photogenerated electrons from the BiMoVO film. Therefore, the photogenerated electrons can be rapidly transferred to the substrate through the graphene channel, enhancing the separation efficiency of the photogenerated electron-hole pairs and prolonging the lifetime of the photoinduced electrons.

Graphical abstract: Graphene-modified BiMo0.03V0.97O4 thin-film photoanode for enhanced photoelectrochemical water splitting performance

Supplementary files

Article information

Article type
Paper
Submitted
24 Jun 2015
Accepted
08 Sep 2015
First published
08 Sep 2015

RSC Adv., 2015,5, 77823-77830

Author version available

Graphene-modified BiMo0.03V0.97O4 thin-film photoanode for enhanced photoelectrochemical water splitting performance

W. Li, J. Yue, Y. Bu and Z. Chen, RSC Adv., 2015, 5, 77823 DOI: 10.1039/C5RA12162K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements