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Green Route for Microwave-Assisted Preparation of AuAg-Alloy-Decorated Graphene Hybrids with Superior 4-NP Reduction Catalytic Activity

Author:
Chen, Hongyu, Fan, Xiaobin, Ma, Jingwen, Zhang, Guoliang, Zhang, Fengbao, Li, Yang
Source:
Industrial & Engineering Chemistry Research 2014 v.53 no.46 pp. 17976-17980
ISSN:
1520-5045
Subject:
X-ray photoelectron spectroscopy, alloys, catalytic activity, energy-dispersive X-ray analysis, engineering, gold, graphene, graphene oxide, microwave treatment, nanoparticles, p-nitrophenol, scanning electron microscopy, silver, transmission electron microscopy, ultraviolet-visible spectroscopy
Abstract:
A microwave-assisted green and facile route has been developed to disperse sub-6-nm Au–Ag alloy bimetallic nanoparticles on the surface of partially reduced graphene oxide (PRGO). The properties of the resulting materials were characterized by high-resolution transmission electron microscopy, scanning electron microscopy, EDX line scanning, UV–vis spectroscopy, ICP spectrometry, and X-ray photoelectron spectroscopy. The reduction reaction of 4-nitrophenol (4-NP) was investigated to evaluate the catalytic performance of AuAg–graphene hybrids, and it was found that this unique catalytic system exhibits excellent activity for this reaction. It is hoped that this fast route can be extended to prepare other preferred bimetallic nanoparticle structures with PRGO supports.
Agid:
5381971