期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 179, 期 1-3, 页码 495-499出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2010.03.030
关键词
Polyoxometalate; Decontamination; VX; Sarin; Mustard gas
Common (chemical warfare agent) CWA decontaminants exhibit harsh and corrosive characteristics, and are harmful to the environment. In the course of our quest for active sorbents as efficient decontaminants, Keggin-type polyoxometalate (POM)(NH(4))(3)PW(12)O(40) was tested for oxidative degradation of CWAs. Although oxidation did not take place, sarin (GB) and VX were smoothly decontaminated to nontoxic products within 1 and 10 days, respectively. Degradation was carried out directly on the powder, eliminating the need for solvents. Mustard gas (HD), whose degradation is highly dependent on oxidation, was not decontaminated by this POM. Solid state MAS NMR ((31)P and (13)C) was utilized both for POM characterization and for decontamination studies monitoring. (C) 2010 Elsevier B.V. All rights reserved.
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