TITLE:
Synthesis of Nanostructured TiO2 Photocatalyst with Ultrasonication at Low Temperature
AUTHORS:
Yong Tao, Zhenan Han, Zuolian Cheng, Qishan Liu, Fengxia Wei, Kok Eng Ting, Xi Jiang Yin
KEYWORDS:
Photocatalysis, Ultrasonication, Semiconductor, Titanium Dioxide, Nanostructure
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.3 No.1,
January
20,
2015
ABSTRACT: A thin film TiO2 in hierarchical
nano-structure with high photocatalytic activities was synthesized in simple
steps with ultrasonication. The crystal structure and morphology of the
photocatalyst were investigated by X-ray diffraction (XRD) and high-resolution
field emission scanning electron microscope (FE-SEM). In the present work,
nanostructured TiO2 was directly formed onto a Ti substrate via a solution
approach. This nanostructured TiO2 photocatalyst can be
reused and will not generate secondary contamination to treated water. The
photocatalytic activity of the synthesized TiO2 photocatalyst was evaluated by
the degradation of phenol under UVC irradiation in water and was compared with
the general sol-gel derived TiO2 films as well as a commercial DP-25 TiO2 coating. It was found that the synthesized nanostructured TiO2has significantly
high and stable photocatalytic activity.