目录
摘要Ⅲ
关键词Ⅲ
AbstractⅣ
引言
引言1
1 溴代阻燃剂的成分来源和简介2
1.1四溴双酚A 2
1.1.1四溴双酚A的环境水平3
1.1.2四溴双酚A在环境中的危害3
1.2四溴双酚S 4
1.2.1四溴双酚S的环境水平5
1.2.2四溴双酚S在环境中的危害5
1.3 多溴联苯醚 5
1.3.1 多溴联苯醚的环境水平6
1.3.2 多溴联苯醚在环境中的危害6
2硫酸根自由基的高级氧化技术7
2.1过硫酸盐的活化方法7
2.2硫酸根自由基的氧化机理7
2.3硫酸根自由基高级氧化技术的优势8
3硫酸根自由基降解溴代阻燃剂的研究进展 8
3.1反应机理8
3.2反应活性和活性点位9
3.3 转化途径10
3.4 Br取代基的脱除及转化12
3.5 溴代消毒副产物13
致谢14
参考文献15
硫酸根自由基氧化降解溴代阻燃剂的研究进展
摘 要
阻燃剂是一种功能性助剂，主要用于提高材料阻燃性能。目前，以四溴双酚A（TBBPA）、四溴双酚S（TBBPS）及多溴联苯醚（PBDEs）为代表的溴代阻燃剂被大量生产及使用，已成为环境中频繁检测出的新型污染物。溴代阻燃剂在环境中半衰期长，难以生物降解，是一类持续性有机污染物。同时，溴代阻燃剂具有高亲脂性和内分泌干扰性，对生态环境和人体健康存在潜在风险。硫酸根自由基高级氧化技术（SRAOPs）是一类新型原位化学氧化技术（ISCO），因其具有廉价高效、环境友好的特点而被广泛用于降解卤代有机污染物。本文在已有文献的基础上，选取TBBPA、TBBPS和PBDEs为溴代阻燃剂的代表，介绍了它们在环境中的浓度水平及危害，随后分别从降解机理、反应活性和位点、转化途径、Br取代基的脱除及转化和溴代消毒副产物的生成等方面，详细综述了SRAOPs氧化降解溴代阻燃剂的研究进展，为溴代阻燃剂的环境污染修复提供文献数据。 *51今日免费论文网|www.51jrft.com +Q: &351916072& 

Research Progress on Oxidative Degradation of Brominated Flame Retardants by Sulfate Radical
ABSTRACT
Flame retardant is a kind of functional additive, which is mainly used to improve the flame retardant property of materials. Currently, brominated flame retardants (BFRs) represented by tetrabromobisphenol A (TBBPA), tetrabromobisphenol S (TBBPS), and polybrominated biphenyl ether (PBDEs) have been largely produced and used and have become emerging contaminants that are frequently detected in the environment. BFRs are persistent organic pollutants with long halflife and difficulty in biodegradation. Meanwhile, brominated flame retardants have high lipophilic and endocrine disrupting properties, thus having potential risks to the ecological environment and human health. Sulfate radicalbased advanced oxidation process (SRAOPs) are promising insitu chemical oxidation technologies (ISCO), which have been widely used to degrade halogenated organic pollutants due to its low cost, high efficiency, and environmental friendliness. Based on the previously published literature, this article introduces the environmental concentration levels and harmful effects of TBBPA, TBBPS, and PBDEs, as representatives of BFRs. The degradation mechanisms, reactivity, transformation pathways, elimination and transformation of Br substituents, and formation of brominated disinfection byproducts are also reviewed in detail for SRAOPs based oxidation of BFRs. We aim to provide some scientific data for the remediation of BFRs contamination by SRAOPs.

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