speaker_2008

COSI 2008
June 23^th - June 27^th 2008
Noordwijk, The Netherlands

	4^th Coatings Science International 2008
	dr. Baoshun Liu
	Key Laboratory of Silicate Materials Science and Engineering, Ministry of Education, China, Wuhan University of Technology, Wuhan City, Hubei Province, P.R. China

	Title lecture
	Efficent degradation of aqueous methyl orange over TiO₂ and CdS electrodes using photoelectrocatalysis under UV and visible light irradiation

	Author
	Liping Wen, Baoshun Liu, Xiujian Zha

	Abstract
	A highly efficient photocatalytic course was realized using photoelectrocatalysis by combining titanium dioxide (TiO₂) and cadmium sulphide (CdS) films. The TiO₂ thin films were prepared on ITO glass substrates using d.c reactive magnetron sputtering, and the CdS thin films were deposited on ITO glass substrates by chemistry bath deposition (CBD). The X-ray diffraction (XRD), Raman, XPS, AFM and TEM were used to characterize the film structure and surface morphologies. The TiO₂ and CdS films were used for anodes and cathodes in a three electrodes photoelectrochemical cell. Meanwhile, the UV and visible lights were used to illuminate the TiO₂ and CdS films. Either TiO₂ films or CdS films and Pt wire were used for anodes and counter electrode , then TiO₂ films or CdS films electrodes were UV or visible lights irradiated, respectively. A series of bias powers were applied between TiO₂ and CdS film electrodes.The experiments shows that the photoelectrocatalysis by the TiO₂ and CdS films under double beam irradiation of UV and visible lights had higher reactivity than the sum of photoelectrocatalysis solely using TiO₂ and CdS films. At last, the reaction mechanism was explained based on the model of the n-n diode for photocatalytic improvement.

	Biography
	EDUCATION 09/2003–06/2006 Ph.D Candidate in Wuhan University of Technology, Wuhan, China, Advisor: Prof. Xiujian Zhao 09/2000–06/2003 B. S. Degree in Wuhan University of Technology, Wuhan, China, Advisor: Prof. Xiujian Zhao 09/1996–06/2000 Bachelor Degree in Wuhan University of Technology, Wuhan, China, Advisor: Prof. Xinjian Jiao RESEARCH WORK 07/2006–present Lecturer in Wuhan University of Technology, Wuhan City, Hubei province, China Supported by National Natural Science Foundation of China (NSFC), 2008-2010, No. 50702041 Supported by Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology)，Ministry of Education, 2007-2008 Supported by Nippon Sheet Glass Foundation (Japan), 2008-2009 TEACHING EXPERIENCE Lecturer, Wuhan University of Technology, Wuhan City, Hubei province, China, 2006-present Developed teaching, leadership, and organizational skills as a lecturer in the Wuhan University of Technology, School of Material Science and Engineering Courses Taught Modern Functional Material, undergraduate students. Professional English, engineering graduate. Experimental Teaching for using UV-vis and PL photospectrometer, undergraduate students. RESEARCH EXPERIENCE Implemented two magnetron sputtering equipments and one includes an electron gun. Many works of My Doctor’s thesis were obtained using the magnetron sputtering equipments. Mastered Modern analysis techniques, including X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and others. Expertly Mastered the C++ languages, and can use the Visual C++ to implement numerical calculation related to my research subject.