...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Formation of Environmentally Persistent Free Radicals during Thermochemical Processes and their Correlations with Unintentional Persistent Organic Pollutants
【24h】

Formation of Environmentally Persistent Free Radicals during Thermochemical Processes and their Correlations with Unintentional Persistent Organic Pollutants

机译：在热化学过程中形成环保的自由基及其与无意持续有机污染物的相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Attention is increasingly being paid to environmentally persistent free radicals (EPFRs), which are organic pollutants with the activities of free radicals and stabilities of organic pollutants. EPFRs readily form during thermal processes through the decomposition of organic precursors such as phenols, halogenated phenols, and quinone-type molecules, which are also important precursors of toxic unintentionally produced persistent organic pollutants (UPOPs). We have found that EPFRs are important intermediates for UPOP formation during thermal-related processes. However, interest in EPFRs is currently mostly focused on the toxicities and formation mechanisms of EPFRs themselves. Little information is available on the important roles EPFRs play in toxic UPOP formation during thermal processes. Here, we review the mechanisms involved in EPFR formation and transformation into UPOPs during thermal processes. The review is focused on typical EPFRs, including cyclopentadiene, phenoxy, and semiquinone radicals. The reaction temperature, metal species present, and oxygen concentration strongly affect EPFR and UPOP formation during thermal-related processes. Gaps in current knowledge and future directions for research into EPFR and UPOP formation, transformation, and control are presented. Understanding the relationships between EPFRs and UPOPs will allow synergistic control strategies to be developed for thermal-related industrial sources of EPFRs and UPOPs.
机译：越来越多地支付对环保的自由基（EPFRS），这些自由基是有机污染物，具有自由基和有机污染物的稳定性。通过分解有机前体如酚，卤代酚和醌类分子，在热过程中容易形成ePFRS，这也是毒性无意产生的持久性有机污染物（UPOPS）的重要前体。我们发现EPFRS在热相关过程中是UPOP形成的重要中间体。但是，目前对EPFRS的兴趣主要集中在ePFRS本身的毒性和形成机制。在热处理过程中，ePFRS在毒性UPOP形成中的重要信息中可以获得很少的信息。在这里，我们在热过程中审查了EPFR地层和转化为upops的机制。审查重点关注典型的EPFRS，包括环戊二烯，苯氧基和半醌基团。反应温度，存在的金属物种和氧浓度在热相关过程中强烈影响EPFR和UPOM形成。介绍了当前知识和未来研究进入EPFR和UPOP形成，转换和控制的未来方向的差距。了解EPFRS和UPOPS之间的关系将允许为EPFRS和UPOPS的热相关工业来源开发协同控制策略。

著录项

  • 来源
    《Environmental Science & Technology》 |2021年第10期|6529-6541|共13页
  • 作者

    Xiaoyun Liu; Lili Yang; Guorui Liu; Minghui Zheng;

  • 作者单位

    State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Science Chinese Academy of Sciences Beijing 100085 China College of Resource and Environment University of Chinese Academy of Sciences Beijing 100049 China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Science Chinese Academy of Sciences Beijing 100085 China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Science Chinese Academy of Sciences Beijing 100085 China College of Resource and Environment University of Chinese Academy of Sciences Beijing 100049 China School of Environment Hangzhou Institute for Advanced Study UCAS Hangzhou 310000 China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Science Chinese Academy of Sciences Beijing 100085 China College of Resource and Environment University of Chinese Academy of Sciences Beijing 100049 China School of Environment Hangzhou Institute for Advanced Study UCAS Hangzhou 310000 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    environmentally persistent free radical; thermochemical reaction; formation mechanism; organic pollutant; polyphenol;

    机译：环保持续自由基;热化学反应;形成机制;有机污染物;多酚;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号