| Fe／Ce负载型非均相类芬顿系统催化降解孔雀石绿的研究 |
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| 引用本文： | 焦秀梅,;习钰兰,;曹占平,;池勇志.Fe／Ce负载型非均相类芬顿系统催化降解孔雀石绿的研究[J].天津城市建设学院学报,2014(3):186-189. |
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| 作者姓名： | 焦秀梅 ;习钰兰 ;曹占平 ;池勇志 |
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| 作者单位： | [1]天津城建大学环境与市政工程学院,天津300384; [2]天津城建大学天津市水质科学与技术重点实验室,天津300384; [3]安徽省城建设计研究院四川分院市政设计所,成都610000; [4]天津工业大学中空纤维膜材料与膜过程教育部重点实验室,天津300160 |
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| 基金项目： | 国家自然科学基金（51078265）;天津市高等学校科技发展基金计划项目（20120518） |
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| 摘 要： | 采用溶胶-凝胶法制备Fe／Ce／改性天然沸石类芬顿催化剂并对孔雀石绿水溶液进行非均相降解研究，考察了其催化特性并研究了催化剂投加量、H2O2投加量、初始pH值、孔雀石绿溶液初始质量浓度和反应时间对孔雀石绿降解效果的影响，并对孔雀石绿降解特性进行动力学分析．结果表明：催化剂投加量3．0g／t,，H2O2的投加量为67．0mg／L，初始pH=8．0，初始孔雀石绿溶液质量浓度为150mg／L，在此条件下，室温反应30min，孔雀石绿溶液脱色率可达97．3％．孔雀石绿溶液的降解速率常数为：k=2．12×106-3．
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| 关 键 词： | 非均相类芬顿法 柠檬酸溶胶-凝胶法 孔雀石绿 降解动力学 |
Catalytic Degradation of Malachite Green by Supported Fe/Ce Heterogeneous Fenton-like System |
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| Affiliation: | JIAO Xiu-mei, XI Yu-lan, CAO Zhan-ping, CHI Yong-zhi ( School of Environmental and Municipal Engineering; lb. Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin 300384, China. Municipal Design Institute, Anhui Urban Construction Design and Research Institute Sichuan Branch, Chengdu 610091, China; Key Laboratory of Hollow Fiber Membrane Material and MembraneProcessofMinistryofEducation, Tianjin Polytechnic University, Tianjin300160, China) |
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| Abstract: | A Fenton-like catalyst, Fe/Ce/modified zeolite, was prepared with a sol-gel method. A heterogeneous degradation research was carried out on malachite green （MG） solution. The catalytic property of Fe/Ce/modified zeolite was investigated and the effects of catalysts dosage, H2O2 concentration, initial pH, initial MG concentration and reaction time on degradation efficiency of MG were studied. And a kinetic analysis of the degradation properties of malachite green was conducted. The results showed that under the conditions of catalyst dosage 3.0 g/L, H2O2 concentration 67.0 mg/L, initial pH 8.0 and initial MG concentration 150mg/L, the decolorization efficiency of MG can reach 97.3% after 30 minutes of reaction at room temperature. And the degradation rate constant for MG degradation was k=2.12 × 10^-3. |
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| Keywords: | heterogeneous Fenton-like reaction sol-gel method malachite green degradation kinetics |
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