| 光助非均相Fenton体系用于活性艳红X-3B脱色的研究 |
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| 引用本文： | 魏国,张昱,杨敏,高迎新,张力平.光助非均相Fenton体系用于活性艳红X-3B脱色的研究[J].环境工程学报,2005,6(6):7-11. |
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| 作者姓名： | 魏国 张昱 杨敏 高迎新 张力平 |
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| 作者单位： | 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085;北京林业大学化学工程系,北京,100083;中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085;中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085;北京大学环境学院,北京,100871;北京林业大学化学工程系,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划“863”项目(2002AA601300)，国家自然科学基金青年基金项目(20207013) |
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| 摘 要： | 在光助非均相Fenton体系中,采用一种稀土铈铁复合(CeFe)材料作为催化剂,并探讨了该反应体系在不同条件下活性艳红X3B的脱色效果。结果表明:该光助非均相Fenton反应在前10min符合一级反应动力学。采用掺杂0.08mol/L铈制备的CeFe材料对活性艳红X3B具有最佳的脱色效果,在pH3.0、H2O234mg/L、UV253.7nm条件下,10min内该反应体系速率常数k达到0.2456min-1,明显高于相同条件下的UV/H2O2(0.0446min-1)、UV/CeFe(0.0306min-1)体系的速率常数。
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| 关 键 词： | 光助 非均相 Fenton 铈铁材料 |
| 文章编号： | 1008-9241(2005)06-0007-05 |
| 修稿时间： | 2004年1月14日 |
Discoloration of reactive brilliant red X-3B by heterogeneous photo-Fenton reaction |
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| Wei Guo,Zhang Yu,Yang Min,GAO Yingxin,Zhang Liping.Discoloration of reactive brilliant red X-3B by heterogeneous photo-Fenton reaction[J].Techniques and Equipment for Environmental Pollution Control,2005,6(6):7-11. |
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| Authors: | Wei Guo Zhang Yu Yang Min GAO Yingxin Zhang Liping |
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| Institution: | Wei Guo 1,2 Zhang Yu1 Yang Min1 Gao Yingxin 1,3 Zhang Liping2 |
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| Abstract: | Discoloration of reactive brilliant red X-3B was studied by using the iron oxides doped with cerium (Ce-Fe) as a heterogeneous catalyst in the presence of H_2O_2 and UV light (253.7 nm). Experimental results show that the heterogeneous photo-Fenton reaction was in conformity with first-order kinetics equation within 10 minutes, and that the discoloration of the dyes relates to the doping dose of cerium for Ce-Fe preparation, pH and H_2O_2 concentration. The optimal discoloration for 100 mg/L RBR X-3B was obtained under the condition that the doping dose of cerium, pH and H_2O_2 concentration were 0.08 mol/L, 3.0 and 34 mg/L respectively. The reaction rate constant of this reaction is 0.2456 min -1,and excels that of UV/H_2O_2 and UV/Ce-Fe system under the same reaction condition. |
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| Keywords: | photo-assistant heterogeneous phase Fenton Ce-Fe |
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