INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Research Progress of Nano Metal Oxides in Decontamination of Chemical Warfare Agents |
GUO Yueting, LEI Meiling, CHEN Wenming, XIN Yi, XU Wencai, MIN Qi, CHEN Likun, WU Yao, KONG Lingce, ZUO Yanjun
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National Key Laboratory of Nuclear and Biochemical Disaster Prevention, Beijing 102205, China |
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Abstract Chemical warfare agents(CWAs), such as sulfur mustard (HD), Soman (GD), Sarin (GB) and VX, are chemical substances used for war purposes that are highly toxic and capable of poisoning or killing humans, animals and plants on a large scale. They do immeasurable harm to humans, and thus the research on decontamination agents with fast and broad spectrum is one of the hotspots in recent years. Nano-metal oxi-des have shown excellent performance in CWAs, phosphorus pesticides, sewage treatment and other fields. Nano-metal oxides can adsorb and react with CWAs, especially the composite metal oxides. They have larger surface area and can provide more active sites. However, some problems need to be solved, such as easy agglomeration and large influence of sample moisture content. This paper summarizes the preparation methods, decontamination kinetics, decontamination ability and reaction mechanism of nano-metal oxides for CWAs and their simulators. It is suggested that the study of decontamination effect and mechanism may be the key to solving the problem of broad-spectrum decontamination. It should be one of the important research directions in the future to develop and prepare composite metal oxides for the high efficiency and wide spectrum decontamination of the three agents.
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Published:
Online: 2022-06-09
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Fund:National Key Laboratory of Nuclear, Biochemical and Chemical Disaster Protection (SKLNBC2018-08). |
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