| 白青青,吴小宁,王倩,李蓉,王晓飞.化学通报,2018,81(3):217-222. |
| Fenton反应中拓展pH的研究进展 |
| Research Progress of enlargement of pH in Fenton Reaction |
| 投稿时间：2017-10-26 修订日期：2017-11-25 |
| DOI： |
| 中文关键词: Fenton氧化技术 催化剂 氧化剂 拓宽pH |
| 英文关键词:Fenton oxidation technology Catalyst Oxidant Broadening pH |
| 基金项目:国家自然科学基金项目(51608412, 61704133)；陕西省自然科学基础研究计划(2016JQ2034)；陕西省教育厅专项项目(17JK0086) |
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| 中文摘要: |
| Fenton技术是一种处理难生物降解有机污染物的有效方法，它可以在较温和的条件下反应，但其缺点是适用pH范围窄。本文讨论了改进催化剂和氧化剂以拓宽pH范围的不同方法，并概述了拓宽pH的反应机理。催化剂的改进包括使用负载型催化剂、铁及含铁矿物催化剂、改性催化剂、非铁金属活性位催化剂等代替Fe(Ⅱ)，这些催化剂在较宽的pH范围内具有较高的催化活性，可以拓宽Fenton反应的pH范围。对氧化剂的改进包括使用含有H2O2的固体氧化剂如过碳酸盐和过硫酸盐等，利用其自身的性质以达到拓宽pH范围的目的。通过对催化剂与氧化剂的同时改进，能有效拓宽Fenton反应的pH范围，同时也会避免生成铁泥。 |
| 英文摘要: |
| Fenton technology is an effective method for the treatment of non-biodegradable organic pollutants. It can be carried out under mild conditions，but with the disadvantage of narrow pH range. In this paper，different methods of improving the catalyst and oxidant to expand the pH range were discussed，and the reaction mechanism of broadening the pH range was summarized. The catalyst modification includes the use of supported catalysts，iron and iron mineral catalysts，modified catalyst，non-ferrous metal active sites，etc. These catalysts can broaden the Fenton reaction pH range for their high catalytic activity over the wide pH range. Improvements to oxidants include the use of H2O2-containing solid oxidants such as percarbonates and persulfates， etc.，using their own properties to achieve the purpose of broadening the pH range. Through the simultaneous improvement of the catalyst and the oxidant，the pH range of the Fenton reaction can be effectively broadened，and the formation of iron sludge can be avoided at the same time. |
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