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| 钴催化过一硫酸氢盐降解水中有机污染物:机理及应用研究 | |
| 引用本文： | 韩强,杨世迎,杨鑫,邵雪停,牛瑞,王雷雷.钴催化过一硫酸氢盐降解水中有机污染物:机理及应用研究[J].化学进展,2012,24(1):144-156. |
| 作者姓名： | 韩强 杨世迎 杨鑫 邵雪停 牛瑞 王雷雷 |
| 作者单位： | 1. 海洋环境与生态教育部重点实验室 青岛 266100; 2. 中国海洋大学环境科学与工程学院 青岛 266100; 3. 香港理工大学土木及结构工程学系 香港九龙 |
| 基金项目： | 国家自然科学基金项目(No.21107101);中国海洋大学“高校基本科研业务费青年教师科研专项基金项目”(No.201113005)资助 |
| 摘 要： | 钴/过一硫酸氢盐(Co/PMS)是为了克服Fenton技术的诸多缺陷而基于类Fenton思路(过氧化物+过渡金属)建立起来的一种高级氧化技术。该体系具有Co用量少(μg/L数量级),产生的SO4-·氧化还原电位高,能够在广泛的pH范围(2-9)降解有机污染物,反应后不产生污泥等优点,在环境污染治理领域具有广阔的应用前景。本文从自由基链式反应、溶液pH、阴离子效应、光照条件、反应气氛及固液两相交换六个方面分析了Co/PMS体系降解水中有机污染物的机理,并在此基础上综述了Co/PMS (黑暗条件)、UV/Co/PMS、Vis/Co/PMS三类均相Co/PMS体系以及Co氧化物催化、Co负载催化两类非均相Co/PMS体系降解水中有机污染物的国内外研究进展,并就存在的问题提出了展望。 |
| 关 键 词： | 过一硫酸氢盐氧化 钴催化 自由基 有机污染物降解 高级氧化技术 |
| 收稿时间： | 2011-04-01 |
| 修稿时间： | 2011-09-01 |
Cobalt Catalyzed Peroxymonosulfate Oxidation: A Review of Mechanisms and Applications on Degradating Organic Pollutants in Water |
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| Han Qiang,Yang Shiying, Yang Xin,Shao Xueting,Niu Rui,Wang Leilei.Cobalt Catalyzed Peroxymonosulfate Oxidation: A Review of Mechanisms and Applications on Degradating Organic Pollutants in Water[J].Progress in Chemistry,2012,24(1):144-156. | |
| Authors: | Han Qiang Yang Shiying Yang Xin Shao Xueting Niu Rui Wang Leilei |
| Institution: | 1. Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China; 2. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; 3. Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China |
| Abstract: | Cobalt/peroxymonosulfate(Co/PMS) system is a recently emerging advanced oxidation technology,established on the idea of transition metal-mediated decomposition of peroxide to overcome the limitations of the Fenton’s reagent.It is gaining prominence,owing to some excellent properties such as high decontamination efficiency with low concentration of cobalt(μg/L levels),ability to produce sulfate radical(SO-·4) and wide pH range(2—9) flexibility.They could easily degrade the complex organic contaminants into small molecules or even deeply mineralize them into CO2 and H2O,besides almost does not produce any sludge after the reaction under mild temperature and pressure conditions.All of these make it a promising alternative in pollution remediation.The paper reviews the research progress of Co/PMS system in degrading organic pollutants from two aspects,homogeneous and heterogeneous,basing on expounding the mechanisms such as SO-·4 chain reaction mechanism,pH influence,anion effect,photo-promotion mechanism,atmosphere effect and heterogeneous mechanism.The prospects of Co/PMS technology are also discussed. |
| Keywords: | peroxymonosulfate oxidation cobalt-based catalysis free radicals degradation of organic contaminants advanced oxidation technology |
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