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Self-indicating porous metal hydroxides incorporating metal reactants for toxic chemical removal and sensing
Self-indicating porous metal hydroxides incorporating metal reactants for toxic chemical removal and sensing
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机译:具有金属反应物的自指示多孔金属氢氧化物,用于有毒化学物质的去除和传感
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摘要
Processes for sensing a variety of toxic chemicals and/or processes for determining the residual life of a filter or filtration system are provided. Exemplary process for sensing a toxic chemical include contacting a toxic chemical, or byproduct thereof, with a sorbent that includes a porous metal hydroxide and a transition metal reactant suitable to react with a toxic chemical or byproduct thereof. The sorbent is contacted with the toxic chemical or byproduct thereof for a sampling time. A difference between a post-exposure colorimetric state of the sorbent and a pre-exposure colorimetric state of the sorbent or control is determined to thereby sense exposure to, or the presence of, the toxic chemical or byproduct thereof.
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