Significant enhancement of the photoelectrochemical activity of TiO2 nanotubes

Min Tian, Sapanbir S. Thind, Shuai Chen, Nelson Matasovzsky, Aicheng Chen
Electrochemistry Communications, September 2011

Abstract

In the present work, we report on a facile and effective approach to significantly enhance the photocatalytic activity of TiO2 nanotubes. The TiO2 nanotubes prepared by the electrochemical oxidation of titanium in dimethyl sulfoxide (DMSO) with 2% HF were treated in a methanol solution under UV light irradiation. In comparison with the untreated TiO2 nanotubes, the treatment resulted in a dramatic increase in the donor density of the TiO2 nanotubes by approximately 3 orders of magnitude. The treated TiO2 nanotubes exhibited a 15-fold enhancement in photocurrent and a 6.8-fold increase in the photoelectrochemical degradation of 4-nitrophenol, significant for hydrogen generation and wastewater treatment.

Go to Journal

Check Also

A Simple Fabrication Method for Carbon-Fiber Ultramicroelectrodes and pH Ultramicroelectrodes - Advances in Engineering

A Simple Fabrication Method for Carbon-Fiber Ultramicroelectrodes and pH Ultramicroelectrodes