Silver nanoparticle-embedded RGO-nanosponge for superior catalytic activity towards 4-nitrophenol reduction

被引：46
作者：
Vellaichamy, Balakumar [1 ]
Periakaruppan, Prakash [1 ]
机构：
[1] Thiagarajar Coll, Dept Chem, Madurai 625009, Tamil Nadu, India
来源：
RSC ADVANCES | 2016年 / 6卷 / 91期
关键词：
CORE-SHELL NANOPARTICLES; GOLD NANOPARTICLES; GREEN SYNTHESIS; GRAPHENE OXIDE; ONE-POT; AG NANOPARTICLES; EFFICIENT; CARBON; AU; NANOSTRUCTURES;
D O I：
10.1039/c6ra19834a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The present work highlights a bio-inspired synthesis of uniform 2 nm sized plasmonic silver nanospheres (Ag-NSs) embedded in reduced graphene oxide nanosponge (RGONS) using Tabebuia berteroi leaf extract. The green reduced RGONS/Ag-NSs is very clean and displays a fabulous catalytic activity towards the reduction of 4-nitrophenol (4-NP) in the presence of ice cold NaBH4 solution. Various analytical techniques were adopted to confirm the composition and structure of the crystalline nanocatalyst materials, including UV-visible absorption spectroscopy, FT-IR, XRD, Raman spectroscopy, HR-TEM and EDX. The formation of Ag-NSs, RGONS and RGONS/Ag-NSs, catalytic mechanism, stability and reusability of the catalyst were also investigated. The catalytic activity of RGONS/Ag-NSs is found to be superior to that ever reported.
引用
收藏
页码：88837 / 88845
页数：9
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