Paper Title:

In Situ Preparation of TiO2 Composite Layer upon Ti Alloy Substrate Using Micro-Arc Oxidation and its Photocatalytic Property

Periodical Materials Science Forum (Volumes 663 - 665)
Main Theme Optoelectronic Materials
Edited by Yuan Ming Huang
Pages 3-11
DOI 10.4028/www.scientific.net/MSF.663-665.3
Citation Yong Qian Wang et al., 2010, Materials Science Forum, 663-665, 3
Online since November, 2010
Authors Yong Qian Wang, Xu Dong Jiang, Chun Xu Pan
Keywords Composite Layer, Micro-Arc Oxidation (MAO), Photocatalytic, TiO2
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Abstract

In this paper, a micro-arc oxidation (MAO) approach is introduced for “in-situ” preparing TiO2 composite layer upon the surface of titanium alloy (Ti-6Al-4V) substrate. The surface morphologies, chemical compositions, crystal microstructure and photocatalytic properties of the layers were investigated by using a field emission scanning electron microscope (FE-SEM), energy dispersive spectrometer (EDS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), electro-chemical workstation and UV-Vis spectrophotometer. The experimental results revealed that photocatalytic performance of the TiO2 composite layers was much higher than that of the pure TiO2 layer and also exhibited absorption under the visible light irradiation.