| TiO2/AC复合催化剂光催化降解气相1,2-二氯苯 |
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| 引用本文： | 陆胜勇,黄一龙,王秋麟,李晓东,严建华.TiO2/AC复合催化剂光催化降解气相1,2-二氯苯[J].物理化学学报,2011,27(9):2191-2199. |
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| 作者姓名： | 陆胜勇 黄一龙 王秋麟 李晓东 严建华 |
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| 作者单位： | State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China |
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| 基金项目： | 国家重点基础研究发展计划项目，国家科技支撑计划项目，水体污染控制与治理科技重大专项课题 |
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| 摘 要： | 以商品活性炭(AC)为载体, 采用溶胶-凝胶法制备不同比表面积和TiO2负载量不同的光催化剂(TiO2/AC). 用氮吸附、X射线衍射(XRD)、扫描电子显微镜(SEM)等表征方法, 获得了所制备的TiO2/AC性能参数; 并通过降解气相1,2-二氯苯(1,2-DCBz)的实验研究了TiO2/AC催化剂的光催化氧化性能, 主要考察参数包括催化剂使用量、比表面积、气相1,2-DCBz浓度等对光催化氧化的影响. 结果表明: 负载于AC上的TiO2颗粒粒径为10 nm左右, TiO2颗粒负载在大比表面积的载体AC上有利于光催化降解气相1,2-DCBz. 通过比较商用P25和自制TiO2/AC光催化剂对气相1,2-DCBz的降解效果, 证明了AC吸附作用和TiO2光催化降解的协同作用使TiO2/AC光催化剂对气相1,2-DCBz的降解效率有较显著的提高.
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| 关 键 词： | 负载型TiO2 活性炭载体 比表面积 光催化剂 气相1 2-二氯苯 |
| 收稿时间： | 2011-05-10 |
| 修稿时间： | 2011-07-15 |
Photocatalytic Degradation of Gaseous 1,2-Dichlorobenzene over TiO2/AC Photocatalysts |
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| LU Sheng-Yong,HUANG Yi-Long,WANG Qiu-Lin,LI Xiao-Dong,YAN Jian-Hua.Photocatalytic Degradation of Gaseous 1,2-Dichlorobenzene over TiO2/AC Photocatalysts[J].Acta Physico-Chimica Sinica,2011,27(9):2191-2199. |
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| Authors: | LU Sheng-Yong HUANG Yi-Long WANG Qiu-Lin LI Xiao-Dong YAN Jian-Hua |
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| Institution: | State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China |
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| Abstract: | Using commercially available activated carbon(AC) as a carrier,photocatalysts of activated carbon-supported TiO2(TiO2/AC) with different specific surface areas and TiO2 loading contents were prepared by the sol-gel method.Nitrogen adsorption,X-ray diffraction(XRD),and scanning electron microscopy(SEM) were used to obtain the performance parameters of the TiO2/AC catalysts.The photocatalytic performance of the TiO2/AC catalysts was studied by using gaseous 1,2-dichlorobenzene.The influence of catalyst dose,s... |
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| Keywords: | Supported TiO2 Activated carbon support Specific surface area Photocatalyst Gaseous 1 2-dichlorobenzene |
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