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Controlled fabrication of well-dispersed AgPd nanoclusters supported on reduced graphene oxide with highly enhanced catalytic properties towards 4-nitrophenol reduction

Author:
Zhu, Xiao-Yan, Lv, Zhi-Suo, Feng, Jiu-Ju, Yuan, Pei-Xin, Zhang, Lu, Chen, Jian-Rong, Wang, Ai-Jun
Source:
Journal of colloid and interface science 2018 v.516 pp. 355-363
ISSN:
0021-9797
Subject:
ambient temperature, catalysts, graphene oxide, nanocomposites, nanoparticles, p-nitrophenol, palladium, pollutants, pollution control, sodium borohydride, wastewater
Abstract:
To realize the efficient and complete removal of organic pollutants in waste water, it is highly urgent for scalable synthesis of either self-supported bimetallic nanocatalysts or anchored on carbon-based materials. In this study, a simple one-pot coreduction method was developed for preparing well-dispersed AgPd alloyed nanoclusters uniformly dispersed on reduced graphene oxide (AgPd NCs/rGO) at room temperature by utilizing 5-azacytosine as the capping agent. The nanocomposites were characterized by a set of physical characterizations. The formation mechanism and catalytic mechanism were discussed in some details. Moreover, the prepared AgPd NCs/rGO exhibited dramatically increased catalytic properties towards the reduction of 4-nitrophenol (4-NP) in the presence of NaBH4 when compared to commercial Pd/C (20 wt.%).
Agid:
6448416