| TiO2光催化还原Cu2+ |
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| 引用本文： | 杨莉,邱贤华,吴少林.TiO2光催化还原Cu2+[J].南昌航空工业学院学报,2006,20(3):36-40. |
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| 作者姓名： | 杨莉 邱贤华 吴少林 |
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| 作者单位： | 南昌航空工业学院 江西南昌330063 |
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| 摘 要： | 采用溶胶-凝胶法制备出TiO2光催化剂,在紫外光的作用下进行光催化还原Cu2 反应。结果表明:在本实验条件下,TiO2最佳投加量为50mg;在pH=6.0时Cu2 光催化还原效果最好;Cu2 浓度小于7.8mg/L时,光催化还原率增加,而Cu2 浓度大于7.8mg/L时,光催化还原率降低;Cu2 浓度小于7.8mg/L时,最佳空穴捕获剂为木糖,木糖添加量控制在反应液体积10%以内;Cu2 浓度大于7.8mg/L时,最佳空穴捕获剂为苯酚,苯酚添加量也应控制在反应液体积10%以内。
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| 关 键 词： | 光催化还原 铜离子 空穴捕获剂 木糖 苯酚 |
| 文章编号： | 1001-4926(2006)03-0036-05 |
| 收稿时间： | 2006-06-25 |
| 修稿时间： | 2006-09-13 |
TiO2 photocatalytic reduction Cu2+ |
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| YANG li,QIU Xian-hua,WU Shao-lin.TiO2 photocatalytic reduction Cu2+[J].Journal of Nanchang Institute of Aeronautical Technology(Natural Science Edition),2006,20(3):36-40. |
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| Authors: | YANG li QIU Xian-hua WU Shao-lin |
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| Institution: | Department of Enviroment and Chemistry Engineering, Nanehang Institute of Aeronautical Technology, Nanehang, Jiangxi 330069 |
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| Abstract: | TiO_2 photocatalyst was prepared using sol-gel method,photocatalytic reduction Cu~(2 ) reaction was carried out under ultralviolet.The results demonstrated that the best addition of TiO_2 was 50mg in the experimental conditions;photocatalytic reduction efficiency of Cu~(2 ) was best when pH=6.0;the photocatalytic reduction efficiencies were increased with the increasing Cu~(2 ) concentrations when the Cu~(2 ) concentrations were low,the photocatalytic reduction efficiencies were reduced with the increasing Cu~(2 ) concentrations when the Cu~(2 ) concentrations were high;the best hole scanvenger was D( )Xylose,the addition quantity of D( )Xylose was controlled within 10% when the Cu~(2 ) concentration was low;the best hole scanvenger was phenol,the addition quantity of phenol was controlled within 10% when the Cu~(2 ) concentration was high. |
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| Keywords: | photocatalytic reduction Cu~(2 ) hole scanvenger D( )Xylose phenol |
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