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Green synthesis of β-CD-functionalized monodispersed silver nanoparticles with ehanced catalytic activity A Physicochemical and engineering aspects

Author:
Li, Peng, Li, Sen, Wang, Yu, Zhang, Yu, Han, Guo-Zhi
Source:
Colloids and surfaces 2017 v.520 pp. 26-31
ISSN:
0927-7757
Subject:
beta-cyclodextrin, catalytic activity, nanoparticles, nanosilver, p-nitrophenol, silver
Abstract:
Increasing application of noble-metal nanoparticles (MNPs) urges the development of a nontoxic and environmentally friendly synthesis methodology. In this paper,using β-Cyclodextrin (β-CD) as reducer and stablizer, a green synthetic approach of monodispersed silver nanoparticles (AgNPs) with diameter between 10–25nmin aqueous alkaline medium is reported. By varying the molar ration of β-CD/AgNO3, the size of as-prepared silver particles can be readily controlled. Furthermore, the formation mechanism of the AgNPs was discussed. On the basis, the catalytic activity of the as-prepared AgNPs was studied toward reduction of p-nitrophenol by NaBH4. The experimental results shown that surface modified by β-CD can improve the catalytic activity of the silver nanoparticles.
Agid:
5613372