| 附载型复合光催化剂TiO2.Al2O3/beads降解有机磷农药 |
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| 引用本文： | 张新荣,杨 平,赵梦月.附载型复合光催化剂TiO2.Al2O3/beads降解有机磷农药[J].环境科学研究,2001,14(2):36-40. |
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| 作者姓名： | 张新荣 杨 平 赵梦月 |
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| 作者单位： | 1.哈尔滨工业大学 应用化学系,黑龙江 哈尔滨 150001 |
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| 基金项目： | 国家科委重点科技攻关项目(920-05-02) |
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| 摘 要： | 研究以四异丙醇钛［Ti(iso-OC3H7)4］、异丙醇铝为原料，以空心玻璃微球为载体，用溶胶-凝胶法制备可漂浮附载型复合光催化剂TiO2.Al2O3/beads的过程。用该光催化剂降解有机磷农药，并与光催化剂DegussaP-25TiO2光活性进行比较。结果表明，附载型复合光催化剂活性显著提高，最高光活性为同样降解条件下，同样含量DegussaP-25TiO2光活性的1.4倍，且TiO2.Al2O3组分摩尔比存在最佳值。同时还研究了TiO2.Al2O3/beads对有机磷农药的吸附性，并用XRD和TEM对附载型复合光催化剂进行表征。
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| 关 键 词： | 复合型光催化剂 TiO2.Al2O3 玻璃微珠 农药 |
| 文章编号： | 1001-6929(2001)02-0036-05 |
| 收稿时间： | 2000/6/27 0:00:00 |
| 修稿时间： | 2000年6月27日 |
Photocatalytic Degradation of Organophosphorous Pesticides Using Composite Photocatalyst TiO2.Al2O3 Attached to the Hollow Glass Microbeads |
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| ZHANG Xin-rong,YANG Ping and ZHAO Meng-yue.Photocatalytic Degradation of Organophosphorous Pesticides Using Composite Photocatalyst TiO2.Al2O3 Attached to the Hollow Glass Microbeads[J].Research of Environmental Sciences,2001,14(2):36-40. |
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| Authors: | ZHANG Xin-rong YANG Ping and ZHAO Meng-yue |
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| Institution: | 1.Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China2.College of Chemical Engineering, Zhengzhou University of Technology, Zhengzhou 450002, China |
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| Abstract: | This paper studies the preparation of TiO2.Al2O3 composite photocatalyst attached to the hollow glass microbeads surface by Sol-gel technique using titanium tetraisopropoxide ［Ti(iso-OC3H7)4］ and triisopropyl organophosphorous as material. The photocatalytic degradation of organophosphorous pesticide is studied, while comparing the photoactivity of TiO2.Al2O3/beads with the photoactivity of Degussa P-25 TiO2. The results show that the best composite photocatalyst produces 1.4 times of photoactivity of P-25 TiO2, and the mole ratios of TiO2.Al2O3 have the best value. Moreover, the adsorption of TiO2.Al2O3/ beads is studied, and the composite photocatalysts are characterized by XRD and TEM. |
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