| TiO2/海泡石负载型催化剂的制备及其光催化活性 |
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| 引用本文： | 张天永,李彬,柴义,费学宁.TiO2/海泡石负载型催化剂的制备及其光催化活性[J].影像科学与光化学,2005,23(6). |
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| 作者姓名： | 张天永 李彬 柴义 费学宁 |
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| 作者单位： | 天津大学,化工学院,精细化工系,天津,300072;天津城建学院,环境工程系,天津,300384 |
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| 基金项目： | 教育部留学回国人员科研启动基金，天津市自然科学基金，建设部科技攻关项目 |
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| 摘 要： | 采用混合焙烧方法,制得TiO2/海泡石负载型催化剂,研究了在该催化剂催化作用下,水溶液中邻苯二甲酸二乙酯(DEP)的光催化降解行为.结果表明:催化剂的用量和TiO2的负载量对光催化降解速率都有影响.对于负载型催化剂,TiO2的负载量对其催化活性及DEP的降解速率有较大影响.当使用A101/海泡石催化剂,用量为2 g/L和4 g/L时,TiO2负载量的较佳值均为5%.并对负载型催化剂的形貌及晶型进行了X射线衍射(XRD)和扫描电子显微镜(SEM)分析.
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| 关 键 词： | 邻苯二甲酸二乙酯 二氧化钛 海泡石 光催化降解 负载 |
Preparation and Photocatalytic Activity of Nano-TiO2/Sepiolite Catalyst |
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| ZHANG Tian-yong,LI Bin,CHAI Yi,FEI Xue-ning.Preparation and Photocatalytic Activity of Nano-TiO2/Sepiolite Catalyst[J].Imaging Science and Photochemistry,2005,23(6). |
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| Authors: | ZHANG Tian-yong LI Bin CHAI Yi FEI Xue-ning |
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| Abstract: | A101/sepiolite catalyst was manufactured by directly mixing TiO_2(A101) with sepiolite.The photocatalytic degradation of DEP(diethyl phthalate) in water was studied with sepiolite supported nanoscale TiO_2 as catalyst.The results of experiments showed that the rate of photocatalytic degradation was affected by the amount of catalyst and the load of TiO_2.For A101/sepiolite catalyst,the load of TiO_2 has great effect on its photocatalytic activity and the rate of DEP's degradation,the carrier catalyst of 5% nanoTiO_2 amounts showed the best photocatalytic activity.The morphography and crystal form of the supported catalyst was analyzed by x-ray diffraction(XRD) and scanning electronic microscope(SEM). |
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| Keywords: | diethyl phthalate nanoscale TiO_2 sepiolite photocatalytic degradation support |
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