Preparation of Au-BiVO4 heterogeneous nanostructures as highly efficient visible-light photocatalysts

Shao-Wen Cao; Zhen Yin; James Barber; Freddy Y C Boey; Say Chye Joachim Loo; Can Xue

doi:10.1021/am201481b

Preparation of Au-BiVO4 heterogeneous nanostructures as highly efficient visible-light photocatalysts

ACS Appl Mater Interfaces. 2012 Jan;4(1):418-23. doi: 10.1021/am201481b. Epub 2011 Dec 20.

Authors

Shao-Wen Cao¹, Zhen Yin, James Barber, Freddy Y C Boey, Say Chye Joachim Loo, Can Xue

Affiliation

¹ Solar Fuels Laboratory, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.

PMID: 22141400
DOI: 10.1021/am201481b

Abstract

Au-BiVO(4) heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO(4) microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO(4) heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO(4) microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO(4) to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.

Publication types

Research Support, Non-U.S. Gov't