| 超声处理下沸石/TiO2复合体光催化剂性能及结构 |
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| 引用本文： | 明彩兵,吴平霄,叶代启.超声处理下沸石/TiO2复合体光催化剂性能及结构[J].华南理工大学学报(自然科学版),2005,33(12):14-18. |
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| 作者姓名： | 明彩兵 吴平霄 叶代启 |
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| 作者单位： | 华南理工大学,环境科学与工程学院,广东,广州,510640;华南理工大学,环境科学与工程学院,广东,广州,510640;华南理工大学,环境科学与工程学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目（40202007）;广东省自然科学基金资助项目（000623,020938,04020017）;广东省重大科技计划项目（2001367,2002254） |
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| 摘 要： | 分别用经过和未经过超声处理而制备出的沸石 ／TiO2复合体光催化剂对含甲苯废气进行光催化降解实验，并运用x射线定向衍射技术和红外光谱探讨了超声处理对沸石／TiO2复合体光催化剂性能及结构的影响．结果表明，超声处理降低了复合体光催化剂中TiO2的纳米颗粒粒径，并使复合体光催化剂中TiO2与沸石的结构羟基发生反应形成键合，从而增强了复合体的光催化活性，相应地提高了复合体光催化剂对甲苯的光催化降解率．
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| 关 键 词： | 沸石/TiO2复合体 超声波 光催化性能 甲苯 |
| 文章编号： | 1000-565X（2005）12-0014-05 |
| 收稿时间： | 2004-12-02 |
| 修稿时间： | 2004年12月2日 |
Performance and Structure of Composite Zeolite/TiO2 Photocatalyst with Ultrasonic Treatment |
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| Ming Cai-bing,Wu Ping-xiao,Ye Dai-qi.Performance and Structure of Composite Zeolite/TiO2 Photocatalyst with Ultrasonic Treatment[J].Journal of South China University of Technology(Natural Science Edition),2005,33(12):14-18. |
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| Authors: | Ming Cai-bing Wu Ping-xiao Ye Dai-qi |
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| Institution: | College of Environmental Science and Engineering, South China Univ. of Tech. , Guangzhou 510640, Guangdong, China |
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| Abstract: | The photocatalytic degradation of exhaust gas containing toluene was conducted by using the zeolite/TiO2 composites with and without ultrasonic treatment as the photocatalysts, and the influence of ultrasonic treatment on the photocatalytic performance and structure of zeolite/TiO2 composite was investigated by means of XRD and IR. The results indicate that the ultrasonic helps reduce the size of TiO2 nano-particles and causes the bonding reaction of TiO2 with the structure hydroxy in zeolite, thus resulting in the improvement of the photocatalytic, activity of zeolite/ TiO2 and the degradation rate of toluene under the action of zeolite/TiO2 composite. |
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| Keywords: | zeolite/TiO2 composite ultrasonic photocatalysis performance Toluene |
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