Selective visible-light-driven toxicity breakdown of nerve agent simulant methyl paraoxon over a photoactive nanofabric
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Universidade Federal de Minas Gerais
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Artigo de periódico
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An efficient photocatalytic nanofabric (NbOFe-NF) based on polycaprolactone (PCL) and immobilized iron niobate (NbOFe) nanoparticles was produced through the electrospinning technique and applied to the photodegradation of methyl paraoxon (MP), a highly neurotoxic chemical warfare simulant. Photocatalytic tests were conducted in the absence of any solvent, relying only on the fabric, substrate, and visible light radiation. As a result, an excellent conversion of 94.5 % of MP was obtained in 48 h of photocatalysis. Furthermore, the photoactive nanofabric proved to be extremely selective, converting MP and its original organophosphate product into less toxic compounds. This entire process was exclusively photocatalytic, through h+ and Oradical dotH produced from ambient humidity.
Abstract
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Nanobiotecnologia, Nanomateriais, Catálise
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Visible light photocatalysis, Electrospinning, Nanofibers, Chemical warfare degradation, Nanofabric
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https://www.sciencedirect.com/science/article/pii/S0926337320311917?via%3Dihub