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| TiO_2薄膜处理水中亚甲基蓝的动力学研究 | |
| 引用本文： | 柳福提,罗磊,张淑华,高曾辉.TiO_2薄膜处理水中亚甲基蓝的动力学研究[J].四川师范大学学报(自然科学版),2010,33(2). |
| 作者姓名： | 柳福提 罗磊 张淑华 高曾辉 |
| 作者单位： | 1. 宜宾学院,物理与电子工程系,四川,宜宾,644000 2. 湖南农业大学,理学院,湖南,长沙,410128 3. 宜宾学院,化学与化工系,四川,宜宾,644000 |
| 基金项目： | 四川省应用基础研究基金 |
| 摘 要： | 采用溶胶-凝胶法制备了纳米TiO2薄膜,并通过XRD对催化剂进行了表征,在自制反应器中对亚甲基蓝进行了光催化降解反应实验.结果表明:TiO2的晶型为锐钛矿型,粒子平均半径为32.9 nm;在亚甲基蓝的初始浓度较低的条件下,初始浓度对光催化的影响基本上符合一级反应动力学模型,起始浓度较大时(1.171×10-4mol/L),实际反应为零级反应,pH值和紫外光光照强度对反应也有明显的影响. |
| 关 键 词： | 光催化 反应动力学 亚甲基蓝 |
Kinetics Study on Methylene Blue in Water Treated by TiO_2 Film |
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| LIU Fu-ti,LUO Lei,ZHANG Shu-hua,GAO Zeng-hui.Kinetics Study on Methylene Blue in Water Treated by TiO_2 Film[J].Journal of Sichuan Normal University(Natural Science),2010,33(2). | |
| Authors: | LIU Fu-ti LUO Lei ZHANG Shu-hua GAO Zeng-hui |
| Institution: | LIU Fu-ti1,LUO Lei2,ZHANG Shu-hua3,GAO Zeng-hui1(1.Department of Physics , Electronic Engineering,Yibin College,Yibin 644000,Sichuan,2.College of Science,Hunan Agricultural University,Changsha 410128,Hunan,3.Department of Chemistry , Chemical Engineering,Sichuan) |
| Abstract: | The nanometer TiO2 thin film was prepared by sol-gel method,the structure and morphology of TiO2 thin film were characterized by XRD.Photocatalytic degradation experiments for methylene blue were carried out on the self-made photoreactor.The research shows that the crystal of TiO2 is anatase structure and the average particle diameter is 32.94 nm.The degradation rate of methylene blue follows the first-order reaction kinetics under low initial concentration conditions,while actual reaction conforms to zero-... |
| Keywords: | photoeatalysis reaction kinetics methylene blue |
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