Table of Contents Author Guidelines Submit a Manuscript
International Journal of Photoenergy
Volume 2012, Article ID 682138, 6 pages
http://dx.doi.org/10.1155/2012/682138
Research Article

Facile Low-Temperature Synthesis of Carbon Nanotube/ Nanohybrids with Enhanced Visible-Light-Driven Photocatalytic Activity

1Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
2Department of Chemistry, Jinhua College of Vocation and Technology, Jinhua 321007, China

Received 6 December 2011; Revised 18 January 2012; Accepted 19 January 2012

Academic Editor: Baibiao Huang

Copyright © 2012 Yunlong Xie 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

We demonstrate a facile and novel chemical precipitation strategy for the accurate coating of TiO2 nanoparticles on the surface of carbon nanotubes (CNTs) to form CNT/TiO2 nanohybrids, which only requires titanium sulfate and CNTs as starting materials and reacts in the alkaline solution at 60°C for 6 h. Using this process, the as-prepared hybrid structures preserved the good dispersity and uniformity of initial CNTs. Furthermore, the CNT/TiO2 nanohybrids show a broad blue luminescence at 469 nm and exhibit significantly enhanced photocatalytic activity for the degradation of rhodamine B (RhB) under visible-light irradiation, which is about 1.5 times greater than that of commercial Degussa P25 TiO2 nanoparticles. It is believed that this facile chemical precipitation strategy is scalable and its application can be extended to synthesize other CNT/oxide nanohybrids for various applications.