MOF-5 & Chemical War Agent Decontamination

Research Paper Title

Multifunctional Ag@MOF-5@chitosan non-woven cloth composites for sulfur mustard decontamination and hemostasis.

Abstract

Attachment of MOF-5 particles on the surface of carboxymethylated non-woven chitosan cloth (denoted MOF-5@chitosan) was achieved by a layer-by-layer technique in an alternating bath of Zn(OAc)2·2H2O and terephthalic acid solutions.

Afterwards, silver nanoparticles were formed/loaded within the resulting MOF-5@chitosan by irradiating at 350 nm wavelength the composite immersed in an aqueous solution of silver nitrate of different concentrations, leading to the formation of ternary composites (denoted Ag@MOF-5@chitosan) which were thoroughly characterised by various techniques.

Decontamination of HD over the composites was systematically studied and the results showed that decontamination efficacy increased with the increase of silver amount.

The decontamination rate constant and half-life of HD were found to be 0.011 min-1 and 63.0 min over the optimal composite, respectively.

Remarkably, attachment of the silver nanoparticles and MOF-5 on the chitosan cloth surface did not interfere with chitosan’s original haemostatic capability that was confirmed through the arterial haemostasis of rats.

It is expected that the multi-functional composite material can find practical applications in the fields of haemostasis, sterilisation and chemical war agent decontamination.

Reference

Liu, L., Ping, E., Sun, J., Zhang, L., Zhou, Y., Zhong, Y., Zhou, Y. & Wang, Y. (2019) Multifunctional Ag@MOF-5@chitosan non-woven cloth composites for sulfur mustard decontamination and hemostasis. Dalton Transactions (Cambridge, England: 2003). 48(20), pp.6951-6959. doi: 10.1039/c9dt00503j.

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