| CdS、Ag^＋掺杂改性纳米TiO2光催化降解甲基橙动力学研究 |
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| 引用本文： | 李琴.CdS、Ag^＋掺杂改性纳米TiO2光催化降解甲基橙动力学研究[J].昆明理工大学学报(理工版),2011,36(4):57-60,74. |
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| 作者姓名： | 李琴 |
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| 作者单位： | 云南广播电视大学化学工程学院,云南昆明650223;昆明理工大学环境科学与工程学院,云南昆明650093 |
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| 基金项目： | 云南省教育厅基金项目(09C0014) |
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| 摘 要： | 在探索纳米TiO2光催化降解甲基橙的最佳条件后,对纳米TiO2及其改性光催化剂CdS/TiO2、Ag＋/TiO2光催化降解甲基橙性能进行了动力学研究,结果表明：纳米TiO2及其改性的CdS/TiO2、Ag＋/TiO2的光催化反应符合动力学一级反应规律;三种光催化反应剂的光催化均存在诱导期,其中纳米TiO2光催化反应诱导期最长,其次是Ag＋/TiO2光催化反应,而CdS/TiO2光催化反应诱导期最短;光催化反应降解甲基橙效率是：TiO2光催化反应最低,其次是Ag＋/TiO2,CdS/TiO2效率最高.
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| 关 键 词： | 纳米TiO2 光催化 污水处理 动力学 掺杂 |
Kinetics of Photocatalytic Degrading Helianthine with Nano-TiO_2 Modified by Doped CdS,Ag~+ |
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| LI Qin.Kinetics of Photocatalytic Degrading Helianthine with Nano-TiO_2 Modified by Doped CdS,Ag~+[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2011,36(4):57-60,74. |
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| Authors: | LI Qin |
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| Affiliation: | LI Qin(1,2)(1.Chemical Engineering Faculty,Yunnan Radio and Television University,Kunming 650223,China,2.Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China) |
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| Abstract: | The exploring process of the kinetics on the performance of photocatalytic degrading helianthine with nano TiO_2 and its modified photocatalytic agent CdS/TiO_2 and Ag+/TiO_2 is introduced in this paper after the optimum condition of helianthine being degraded by photocatalytic nano TiO_2 is determined.The results indicate that the photocatalytic reaction of nano TiO_2 and its modified CdS/TiO_2,Ag+/TiO_2 are in accordance with the characteristic of the first order reaction.An induction period exists in all... |
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| Keywords: | nano TiO_2 photocatalysis sewage disposal kinetics dope |
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