| PW/MCM-41光催化降解亚甲基蓝的动力学研究 |
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| 引用本文： | 黄艳芹.PW/MCM-41光催化降解亚甲基蓝的动力学研究[J].河南师范大学学报(自然科学版),2011,39(4):98-101. |
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| 作者姓名： | 黄艳芹 |
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| 作者单位： | 新乡学院化学与化工学院,河南新乡,453003 |
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| 基金项目： | 河南省重点科技攻关项目(092102310184); 河南省教育厅2008年度自然科学研究计划项目(2008C480002) |
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| 摘 要： | 采用浸渍法制备了负载型光催化剂PW/MCM-41,并将其用于亚甲基蓝的光催化降解过程,研究其动力学规律.结果表明,PW/MCM-41光催化降解亚甲基蓝是拟一级反应,其表观反应速率常数k1与初始浓度c0的关系为k1=0.0675 c-0.5067.该反应符合Langmuir-Hinshelwood (L-H)动力学模型,...
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| 关 键 词： | PW/MCM-41 光催化降解 亚甲基蓝 反应动力学 |
Kinetics Study of the Photocatalytic Degradation of Methylene Blue on PW/MCM-41 |
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| HUANG Yan-qin.Kinetics Study of the Photocatalytic Degradation of Methylene Blue on PW/MCM-41[J].Journal of Henan Normal University(Natural Science),2011,39(4):98-101. |
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| Authors: | HUANG Yan-qin |
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| Institution: | HUANG Yan-qin(Department of Chemistry and Chemical Engineering,Xinxiang University,Xinxiang 453003,China) |
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| Abstract: | PW/MCM-41 is prepared by loaded method.In order to investigate the kinetic rules on the photocatalytic degradation of methylene blue,PW/MCM-41 is used.Results of kinetic study show that the degradation reaction could be expressed by the first-order reaction kinetic model,and the relationship between apparent reaction rate constant and initial concentration of methylene blue is k′=0.067 5 c-0.506 70.The reaction accords with Langmuir-Hinshelwood(L-H) model,The reaction rate constant k and adsorption equilibrium constant K are k=0.923 5 min-1 and K=0.018 1 L·mg-1.The apparent reaction rate constant accelerate with increasing the light intensity. |
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| Keywords: | PW/MCM-41 photocatalytic degradation methylene blue reaction kinetics |
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