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Journal of Nanotechnology
Volume 2011 (2011), Article ID 702130, 6 pages
http://dx.doi.org/10.1155/2011/702130
Research Article

Enhancement in Photoelectrochemical Efficiency by Fabrication of @MWCNT Nanocomposites

1Key Laboratory of New Fiber Materials and Modern Textile, School of Chemistry, Chemical Engineering and Environments, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
2Institute of Oceanology, Chinese Academy of Science, Qingdao 266071, China
3Faculty of Environment and Safety, Qingdao University of Science and Technology, Qingdao 266042, China

Received 30 July 2011; Accepted 17 September 2011

Academic Editor: Yuanhui Zheng

Copyright © 2011 Yan Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An enormous enhancement in the photo-to-current conversion efficiency over the nanocomposite material composed by BiVO4 on the surface of MWCNTs, with respect to electrode of pure BiVO4, was observed. The heterojunction formed between MWCNTs and nano-BiVO4 is beneficial for the separation of photogenerated electrons and holes, resulting in more electrons that are able to transport efficiently to the surface and therefore enhance the photoefficiency.