Preparation and application of graphene composite fiber nonwoven fabric for catalytically degrading neuropathic chemical warfare agents

A graphene fiber and graphene composite technology, applied in the field of chemical defense, can solve the problem of low utilization of MOFs catalysts, and achieve the effect of improving catalytic degradation efficiency
CN111188196AActive Publication Date: 2020-05-22BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2020-05-22

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Abstract

The invention discloses preparation and application of a graphene composite fiber nonwoven fabric for catalytically degrading neuropathic chemical warfare agents, and belongs to the field of chemicalprevention. MOFs (Metal Organic Frameworks) nanoparticles are synthesized on the surface of fibers by a solvothermal method by using graphene fibers as carriers, wherein the diameter of the graphene fibers is 20 to 100 [mu]m; an MOFs catalyst is UiO-66-NH2; the particle dimension is 50 to 400 nm; and the composite fiber nonwoven fabric is graphene@UiO-66-NH2, and the thickness is 50 to 300 [mu]m.The graphene composite fiber nonwoven fabric is prepared through wet spinning and subsequent vacuum suction filtration, and has an efficient photothermal conversion effect. Under the condition of simulated sunlight, the catalytic degradation half-life period of the graphene@UiO-66-NH2 on an optimum analog of methyl paraoxon of a nerve poison of GD is 1.6 min; complete degradation can be almost realized within 20 min; and excellent capability of fast and catalytically degrading the neuropathic chemical warfare agents is shown.
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Description

Technical field:

[0001] The invention relates to a preparation method and application of a graphene composite fiber non-woven fabric with a photothermal enhancement effect that catalyzes and degrades neural chemical warfare agents ultra-fast, and belongs to the field of chemical defense. Background technique:

[0002] Highly toxic neurochemical warfare agents (Chemical Warfare Agents, CWAs) containing phosphate bonds, such as Tabun (GA), Sarin (GB), Soman (GD) and Viex (VX), are characterized by Strong toxicity, quick action, can produce poisonous effect to human body through contact or inhalation. Although the use of chemical weapons has been banned internationally, a large number of chemical weapons are still being prepared and become a global threat. At present, the use of activated carbon as an intermediate layer or coating for material adsorption of chemical warfare agents is the main protection strategy. For example, Chinese patent document CN107584824A discloses a m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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