| 阴离子对Fenton氧化降解聚乙烯醇的影响 |
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| 引用本文： | 王阳毅,高强,刘赛,葛明桥.阴离子对Fenton氧化降解聚乙烯醇的影响[J].化工环保,2017,37(6):644-647. |
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| 作者姓名： | 王阳毅 高强 刘赛 葛明桥 |
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| 作者单位： | 江南大学 纺织服装学院生态纺织教育部重点实验室,江苏 无锡 214122 |
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| 基金项目： | 国家自然科学基金项目（21504033）; 2016年度江苏省普通高校专业学位研究生实践创新计划项目（SJLX_0481）; 江苏高校优势学科建设工程资助项目（PAPD） |
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| 摘 要： | 研究了亚铁盐中NO3-、SO42-、Cl-、Br-等阴离子对Fenton氧化降解高浓度聚乙烯醇(PVA)效果的影响。实验结果表明:酸性条件下具有氧化性的阴离子NO3-或能被氧化形成具有氧化性物质的离子Cl-、Br-对Fenton氧化降解PVA有协同促进作用,且氧化性越强越容易促使PVA大分子链断裂;含NO3-、Cl-、Br-和SO42-的Fenton氧化降解PVA,COD去除率分别为70.05%、70.60%、72.40%和87.90%。采用COD去除率相差不大、产物分子量较小的硝酸亚铁、氯化亚铁、溴化亚铁中的一种作为Fenton试剂催化降解PVA较适宜。
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| 关 键 词： | 芬顿试剂 聚乙烯醇 亚铁盐阴离子 氧化降解 |
| 收稿时间： | 2017-03-24 |
Effects of ions on oxidative degradation of polyvinyl alcohol by Fenton method |
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| Wang Yangyi,Gao Qiang,Liu Sai,Ge Mingqiao.Effects of ions on oxidative degradation of polyvinyl alcohol by Fenton method[J].Environmental Protection of Chemical Industry,2017,37(6):644-647. |
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| Authors: | Wang Yangyi Gao Qiang Liu Sai Ge Mingqiao |
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| Affiliation: | Key Laboratory of Eco-Textiles,Ministry of Education,School of Textile and Clothing,Jiangnan University,Wuxi Jiangsu 214122,China |
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| Abstract: | The effects of NO3-,SO42-,Cl-,Br- anions of ferrous on degradation of high-concentration polyvinyl alcohol（PVA）by Fenton reaction were investigated. The results showed that：NO3- with oxidizability under acidic condition or Cl- and Br- which can turn into oxidative ions had positive effects on the oxidative degradation of PVA by Fenton reagent,and the stronger the oxidability is,the easier the broken of PVA macromolecular chain is;After degradation by Fenton oxidation with NO3 -,Cl -,Br - and SO42 -,The COD removal rate of PVA was 70.05%,70.60%,72.40% and 87.90%,respectively. Ferrous salts with similar removal rate of COD and smaller molecular weight of product,such as ferrous nitrate,ferrous chloride and ferrous bromide were suitable to be used as catalyst for degradation of PVA by Fenton reagent. |
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| Keywords: | Fenton reagent polyvinyl alcohol ferrous anion oxidation degradation |
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