| 固体超强酸SO_4~(2-)/TiO_2-WO_3光催化降解邻硝基苯酚动力学研究 |
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| 引用本文： | 彭少洪,黄运凤.固体超强酸SO_4~(2-)/TiO_2-WO_3光催化降解邻硝基苯酚动力学研究[J].化学与生物工程,2009(6). |
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| 作者姓名： | 彭少洪 黄运凤 |
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| 作者单位： | 广州城市职业学院生物与环境工程系; |
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| 基金项目： | 广州市科技攻关资助项目(08C007) |
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| 摘 要： | 在高压汞灯下,研究了邻硝基苯酚在SO42-/TiO2-WO3光催化剂表面的降解过程,对邻硝基苯酚在SO42-/TiO2-WO3悬浮体系中的降解机理进行了初步的探讨。结果表明,光降解反应速率受邻硝基苯酚的初始浓度、气相氧流量、反应温度、溶液pH值、光强度和催化剂用量等因素的影响。基于Langmuir-Hinshelwood方程和一些假设,分析了邻硝基苯酚光降解的动力学机理,推导了固体超强酸SO42-/TiO2-WO3催化邻硝基苯酚光降解的动力学方程。
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| 关 键 词： | 光催化 SO42-/TiO2-WO3 邻硝基苯酚 动力学 |
Kinetic Study on Photocatalytic Degradation of o-Nitrophenol by Solid Superacid SO_4~(2-)/TiO_2-WO_3 |
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| PENG Shao-hong,HUANG Yun-feng.Kinetic Study on Photocatalytic Degradation of o-Nitrophenol by Solid Superacid SO_4~(2-)/TiO_2-WO_3[J].Chemistry & Bioengineering,2009(6). |
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| Authors: | PENG Shao-hong HUANG Yun-feng |
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| Affiliation: | PENG Shao-hong,HUANG Yun-feng(Department of Biology and Environmental Engineering,Guangzhou City Polytechnic,Guangzhou 510405,China) |
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| Abstract: | This paper investigates the degradation process of o-nitrophenol on the surface of SO2-4/TiO2-WO3 photocatalyst with the help of high pressure mercury vapor lamp.The preliminary discussion is made on the degradation mechanism of o-nitrophenol in SO2-4/TiO2-WO3 suspension system.The result shows that the photodegradation reaction rate depends on the initial concentration of o-nitrophenol,flow rate of gas phase oxygen,reaction temperature,pH value of solution,light intensity and dosage of catalyst.Based on th... |
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| Keywords: | photocatalysis SO2-4/TiO2-WO3 o-nitrophenol kinetic |
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