4.7 Article

Reactive Organic Suspensions Comprising ZnO, TiO2, and Zeolite Nanosized Adsorbents: Evaluation of Decontamination Efficiency on Soman and Sulfur Mustard

Journal

TOXICS
Volume 9, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/toxics9120334

Keywords

chemical warfare agents; decontamination solution; nanoparticles; GC-MS; degradation; conversion rate; soman; sulfur mustard

Funding

  1. Ministry of Research, Innovation and Digitization, CNCS/CCCDI-UEFISCDI [PN-III-P2-2.1-PED-2019-4222, 427PED/2020]

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This study extensively investigated the efficiency of decontamination of sulfur mustard (HD) and soman (GD) using three types of reactive organic suspensions with nanosized adsorbents (ZnO, TiO2, and zeolite). The decontamination solutions were assessed through GC-MS analysis to determine the degradation of the toxic agents over time intervals, while also monitoring the conversion of the chemical warfare agents into decontamination products over a period of 24 hours.
This paper comprises an extensive study on the evaluation of decontamination efficiency of three types of reactive organic suspensions (based on nanosized adsorbents) on two real chemical warfare agents: soman (GD) and sulfur mustard (HD). Three types of nanoparticles (ZnO, TiO2, and zeolite) were employed in the decontamination formulations, for enhancing the degradation of the toxic agents. The efficacy of each decontamination solution was investigated by means of GC-MS analysis, considering the initial concentration of toxic agent and the residual toxic concentration, measured at different time intervals, until the completion of the decontamination process. The conversion of the two chemical warfare agents (HD and GD) into their decontamination products was also monitored for 24 h.

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