| 二氧化钛对活性艳红X-3B的光催化降解研究 |
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| 引用本文： | 漆新华,王中华,庄源益,余颖,李家麟.二氧化钛对活性艳红X-3B的光催化降解研究[J].化工环保,2004,24(1):1-4. |
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| 作者姓名： | 漆新华 王中华 庄源益 余颖 李家麟 |
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| 作者单位： | 南开大学环境科学与工程学院,天津,300071;华中师范大学纳米研究中心,湖北武汉,430079 |
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| 基金项目： | 国家自然科学基金资助项目 (2 0 2 0 70 0 2 ) |
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| 摘 要： | 以TiO2作为光催化剂，研究了TiO2对活性艳红X-3B的光催化氧化降解行为。结果表明，以锐钛矿为主的混晶型Ti02的催化活性最好；X-3B的光催化降解动力学符合Langmuir-Hinshelwood动力学模式，并求出其动力学参数女(表观反应速率常数)为0．5921，KA(吸附平衡常数)为0．1725；温度对X-3B的降解影响很小，其活化能仅为6．04kJ／mol；溶液中盐度的增加会不断降低TiO2对X-3B的光催化降解速率。
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| 关 键 词： | 活性染料 艳红X-3B 二氧化钛 光催化氧化 |
| 文章编号： | 1006-1878(2004)01-0001-04 |
| 修稿时间： | 2003年5月10日 |
Study on Photocatalytic Degradation of Reactive Brilliant Red X-3B in Water by Titanium Dioxide |
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| Qi Xinhua,Wang Zhonghua,Zhuang Yuanyi,Yuying,Li Jialin.Study on Photocatalytic Degradation of Reactive Brilliant Red X-3B in Water by Titanium Dioxide[J].Environmental Protection of Chemical Industry,2004,24(1):1-4. |
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| Authors: | Qi Xinhua Wang Zhonghua Zhuang Yuanyi Yuying Li Jialin |
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| Institution: | Qi Xinhua~1,Wang Zhonghua~1,Zhuang Yuanyi~1,Yuying~2,Li Jialin~2 |
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| Abstract: | The photocatalytic degradation behavior of aqueous reactive brilliant red X-3B on TiO_2 was studied.The experimental trsults show that the mixture crystal of TiO_2 whose major component is anatase has the best catalytic reactivity;the degradation kinetics of X-3B is accorded with Langmiur-Hinshelwood model and its kinetic parameter k (reaction rate constant) and K_A(adsorption equilibrium constant) are 0.5921 and 0.1725 respectively;temperature has a little effect on the degradation of X-3B,whose activation energy is only 6.04 kJ/mol;moreover,the increasing of solution salinity will reduce the degradation rate of X-3B. |
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| Keywords: | reactive dye brilliant red X-3B titanium dioxide photocatalytic oxidation |
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