Degradation of toxic organophosphates on the surface of composite adsorbents

Materials based on TiO2 nano particles with grapheme oxide prepared by means of unique methods developed at ÚACH can bind and inactivate dangerous organophosphates (e.g. Sarin, Soman, VX) on their surface.

Using in situ infrared spectroscopy we studied processes on the surface of adsorbents, proved their high efficiency and described the mechanism of adsorption and degradation that provide key information for the development of new highly effective detoxification means of protection for people, equipment, and buildings.

Inactivation of toxic organophosphate on the surface of nanostructural adsorbent. Shots from electron microscope (TEM) show TiO2 based nanostructural composite adsorbents with grapheme oxide and a simplified schema of adsorption and degradation of a toxic gaseous organophosphate DMMP on their surface.

Henych, J.*, Štengl, V., Mattsson, A., Tolasz, J., Österlund, L.: Chemical warfare agent simulant DMMP reactive adsorption on TiO2/graphene oxide prepared via peroxo-complex or urea precipitation. J. Hazard. Mater. 2018, 359, 482-490; JRC/D1.

Collaboration: Uppsala University (Sweden), Military Research Institute Brno, State enterprise

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