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《Journal of Guilin University of Electronic Technology》 2003-03
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Photo-catalytic Activity and Applications of TiO_2

WANG Hua(Dept.of Communication and Information Engineering, Guilin 541004, China)  
The new methods and the new techniques of enhancing the TiO2 photocatalytic activity and the new problems of removing the contamination in water and in air are discussed in detail.Recent studies on these fields indicted that the metalionadulteration can provide electronacceptor and decrease the recombination,the noble metal sediment can debase the gap of energy band and increase the amount of electronhole,the photosensitization can enlarge the region of light wave,and the complex semiconductor can separate the charges effectively and prolong the life of electronhole.The photocatalytic removal of primordial contamination in water and in air had been removed fast by TiO2,but the contamination had not been mineralized entirely.The efficiency of photocatalytic removal of TiO2 must be father enhanced.
【CateGory Index】: X132;O643.3
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