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Photoassisted Reaction of Sulfur Mustard under UV Light Irradiation

机译：紫外光下硫芥菜的光辅助反应

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摘要

The photoassisted reaction of sulfur mustard (HD) in both the vapor and droplet states under UV light irradiation was investigated.It was found that HD molecules in either the gas or the condensed phase could be easily converted into other chemicals under the irradiation qf a germicidal lamp.The products detected upon reaction suggested that the photoassisted reaction of HD molecules in the gas phase produced a kind of nontoxic heavy polymer,and this method seemed to be applicable for decontamination of air.Nevertheless,the photoassisted reaction of HD droplets would produce a series of products containing -SCH_2CH_2-Cl or -OCH_2CH_2Cl groups,some of which were proven to be even more toxic than HD.Therefore,it was not an effective method for the decontamination of HD droplets.The obtained experimental results would indicate that two possible pathways might be involved in the destruction of HD molecules: (1) HD molecules may undergo a photochemical reaction upon absorbing photons of sufficient energy,which leads to cleavage the C-S bond in HD molecules at the primary step,or (2) HD molecules could be oxidized by the photogenerated ozone.
机译：研究了紫外光照射下，蒸汽状态和液滴状态下硫芥菜（HD）的光辅助反应，发现气相或冷凝相中的HD分子在杀菌后很容易转化为其他化学物质。反应后检测到的产物表明，HD分子在气相中的光辅助反应产生了一种无毒的重质聚合物，该方法似乎适用于空气的净化。尽管如此，HD液滴的光辅助反应仍会产生系列含有-SCH_2CH_2-Cl或-OCH_2CH_2Cl基团的产品，其中一些被证明比HD具有更高的毒性。因此，这不是对HD液滴进行净化的有效方法。获得的实验结果表明，两种可能的方法HD分子的破坏可能涉及以下途径：（1）HD分子在吸收硫的光子后可能发生光化学反应能量不足，导致第一步中HD分子中的C-S键断裂，或者（2）HD分子可能被光生臭氧氧化。

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  • 来源
    《Environmental Science & Technology》 |2005年第22期|p.8742-8746|共5页
  • 作者

    GUO-MIN ZUO; ZHEN-XING CHENG; GUO-WEN LI; LIAN-YUAN WANG; TING MIAO;

  • 作者单位

    Contribution from the No.3 Department,Institute of Chemical Defense,P.O.Box 1048,Beijing,102205,China;

    Contribution from the No.3 Department,Institute of Chemical Defense,P.O.Box 1048,Beijing,102205,China;

    Contribution from the No.3 Department,Institute of Chemical Defense,P.O.Box 1048,Beijing,102205,China;

    Contribution from the No.3 Department,Institute of Chemical Defense,P.O.Box 1048,Beijing,102205,China;

    Contribution from the No.3 Department,Institute of Chemical Defense,P.O.Box 1048,Beijing,102205,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 环境化学;
  • 关键词

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