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《Environmental Chemistry》 2009-02
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PREPARATION OF TiO_2 NANOTUBE AND PHOTODEGRADATION OF TOXIC ORGANIC POLLUTANTS

DENG An-pingHUANG Ying-pingFANG Yan-fenCHEN Yan(Alan G.MacDiarmid Research Institute for Renewable Energy,China Three Gorges University,Yichang,443000,China)  
TiO_2 nanotube were prepared in hydro-themeral method.The characteristics of TiO_2 nanotube were carried out using transmission electron mixroscopy(TEM),scan electron mixroscopy(SEM)and X-ray diffraction(XRD)spectroscopy.TiO_2 nanotube prepared under pH=2 had optimal using the photo-catalytic degradation experiments of organic dye Rhodamine B(RhB)and 2,4-dichlorophenol(2,4-DCP)which is a colorless and toxic as probe reactions.The TiO_2 nanotube/UV(λ387nm)system had good degradation to RhB and 2,4-DCP by analysising UV-Vis,FTIR and TOC.The mineralized rates of RhB and 2,4-DCP were 100% and 97.12%,respectively after 12h.TiO_2 nanotube involved·OH radical mechanism by detecting H2O2 and·OH using POD,DPD spectro-photometry and benzoic acid spectro-fluorescence analysis methods.
【Fund】: 国家重点基础研究发展计划(No.2008CB417206);; 湖北省青年杰出人才基金(No.2005ABB030);; 湖北省高等学校优秀中青年科技创新团队计划(No.T200703)资助项目
【CateGory Index】: X132
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