Protective technology with reactive solid sorbent for oxidative decontamination of toxic materials
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsJason K. Navin, Christopher J Karwacki
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Abstract
A solid particulate reactive sorbent for decontaminating toxic chemical and biological agents and its method of making. The reactive sorbent comprising a plurality of aggregates formed from linked hydrophilic nanoparticles and individual nanoparticles that bind at least one detoxifier, such that the sorbent absorbs the agents, allowing the detoxifier to oxidize and decontaminate the agents for removal. More preferably, the hydrophilic nanoparticles comprise fumed silica and the detoxifier comprises hydrogen peroxide.
Claims14
A protective technology, comprising:
- filtration media, filters, protective clothing, or fabrics, wherein said filtration media, filters, protective clothing, or fabrics include a solid particulate reactive sorbent for detoxifying toxic chemical and biological agents, said sorbent comprising a plurality of aggregates of individual hydrophilic nanoparticles and linked hydrophilic nanoparticles that are doped with or combined with at least one detoxifier, wherein said individual hydrophilic nanoparticles and linked hydrophilic nanoparticles are selected from the group consisting of:
- silicon oxyhydroxides, aluminum oxide, alumina, aluminum oxyhydroxides, aluminates, fumed silica, clay minerals and mixtures thereof;
- and wherein said hydrophilic nanoparticles have a weight ratio of 5:1 to 1:1 to said detoxifier in said reactive sorbent.
Dependencies are inferred from the claim text.