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Facile synthesis of polyphenol mediated metal nanocomposites for selective sensing of methylmercury
Z. Ansari, P. Singh,
Published in Elsevier Ltd
2020
Volume: 8
   
Issue: 4
Abstract
In this article we report on the synthesis of metal morin nanocomposites. Morin, a naturally occurring polyphenol has been used to generate nickel, copper and nickel-copper bimetallic nanocomposites at room temperature. The method offers advantage of being simple and free from environmental hazards. The synthesized nanocomposites have been characterized thoroughly using various analytical techniques. The materials so obtained were explored for the sensing of methylmercury at pM concentrations. It was found that the morin nanocomposites showed selective optical response towards methylmercury by generating an absorbance peak at λmax 250 »nm. Out of the three nanocomposites, Cu- morin nanocomposite was found to be a better candidate as sensor. The linear range of detection was found to be 33 »pM-100 »pM. Infra red spectroscopic data suggested formation of Hg-C bond as the reason behind such type of sensing. This method was further extended towards detection of methylmercury in the natural samples like, river water and its sediment. The material can be reused with significant efficiency for two successive runs. © 2020 Elsevier Ltd.
About the journal
JournalData powered by TypesetJournal of Environmental Chemical Engineering
PublisherData powered by TypesetElsevier Ltd
ISSN22133437