| Autor: |
Cyril, Neethu, George, James Baben, Nair, Pratheesh V., Joseph, Laigi, C.T., Sunila, V.K., Smitha, B.N., Anila, V.P., Sylas |
| Zdroj: |
Nano-Structures & Nano-Objects; April 2020, Vol. 22 Issue: 1 |
| Abstrakt: |
Biosynthesized noble metal nanoparticles have different potential applications in the field of environment and biological science. Herein, we report the mechanism on the formation of gold and silver nanoparticles using the seed extract of Derris trifoliata(DT), a mangrove associate plant using LC-MS/MS and FTIR techniques. Influence of various parameters like concentration of the extract, duration of exposure to sunlight and pH in the synthesis were studied and optimized. Compared to the previous reports, silver nanoparticles synthesized by the present method exhibited high catalytic activity in the sodium borohydride (NaBH4) mediated reduction of position isomers of nitrophenol with an exceptional activity parameter 1744 s−1g−1for 4-nitrophenol. From the results, it could be concluded that the catalytic property of a nanoparticle depends on the structure of substrate to be reduced. Furthermore, catalytic reduction of a coloured pollutant, azo violet was also studied using the green synthesized gold and silver nanoparticles. |
| Databáze: |
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