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《Journal of Anhui Agricultural Sciences》 2010-05
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Effects of the System of pH Value and Injecting Gas on Photo Catalysis Reduction of Cu(Ⅱ) by TiO_2

HUANG Jin-yong et al (School of Chemical & Material,Zhuhai Campus of Beijing Institute Technology,Zhuhai,Shenzheng 519085)  
The influence of photo catalytic reduction of Cu(Ⅱ) by nanometer TiO2 in suspending and under 300W ultraviolet lamp was studied through changing the system of pH value and injecting gas.The results showed that Cu(Ⅱ) can be effectively removed by nanometer TiO2 under 300W ultraviolet lamp.The adsorption of Cu(Ⅱ)and photo catalytic reduction of nanometer TiO2 had effects at the same time during the experiment.And the best pH value for Cu(Ⅱ)removal in the experimental environmental was 5.00.After injecting N2 into the reactive system,the removal efficiency for Cu(Ⅱ)was 98% and after injecting air removal efficiency was 72%,was 34% and 8% respectively than no gas.
【Fund】: 国家水体污染控制与治理科技重大专项(2008ZX07211-005-03);; 国家自然科学基金项目(20677012)
【CateGory Index】: X132
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