or CO 3 − indicating the mineralization of DMCP to form CuCl 2 and CuCO 3 is shown. Even though more DMCP is reactively adsorbed on CuON, its decomposition is faster on CuONGO. Detected NO 2 , which is formed as an intermediate, causes the conversion of an unevaporated DMCP liquid to H 3 PO 4 , as supported by MS results. This mineralization of DMCP happens via an indirect contact with the catalyst. Thus, CuON and CuONGO are considered as highly powerful media for the decontamination of chlorophosphate-based nerve agents.

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High surface area composites consisting of iron oxyhydroxides and graphite oxide/aminated graphite oxide are efficient media for adsorption/decontamination of a mustard gas surrogate (CEES).

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The interactions of 2-chloroethyl ethyl sulfide (CEES) with the surface of iron oxyhydroxide and its composites with graphite oxide and/or aminated graphite oxide were studied under visible light irradiation. Materials exposed to CEES were extensively characterized by FTIR-STR, UV-VIS-NIR, and TA-MS. The gaseous/vaporous reaction products were identified by GC-MS. The compounds deposited on the surface of the materials were analyzed in acetonitrile extracts by NMR and MS-MS. The FTIR results indicated the existence of alcohol groups on the surface of the exhausted samples and the involvement of OH groups in the CEES reactive adsorption. Ethyl vinyl sulfide (EVS) was the only volatile compound detected as a result of the reaction with the surface. Two adsorption sites for either CEES or EVS were identified on the adsorbent surfaces. As a result of CEES reactive adsorption Fe(III) was reduced, which indicates its crucial role in the oxidation of CEES and EVS. On the composites, the detection of disulfides as products of advanced oxidation of CEES suggests the activation of thiyl and oxygen radicals. This indicates that the incorporation of GO and GOU into iron oxyhydroxides strongly increases the oxidation potential of oxyhydroxides and induces the formation of radicals. The main promoters of CEES transformation are proposed to be OH groups and thiyl radicals.

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