Efficient degradation of azo dyes using Ag and Au nanoparticles stabilized on graphene oxide functionalized with PAMAM dendrimers

被引：112

作者：

Rajesh, Rajendiran ^{[1
]}

Kumar, S. Senthil ^{[2
]}

Venkatesan, Rengarajan ^{[1
]}

机构：

[1] Pondicherry Univ, Dept Chem, Pondicherry 605014, India

[2] VIT Univ, Sch Adv Sci, Environm & Analyt Chem Div, Vellore 632014, Tamil Nadu, India

来源：

NEW JOURNAL OF CHEMISTRY | 2014年 / 38卷 / 04期

关键词：

PHOTOCATALYTIC DEGRADATION; SILVER NANOPARTICLES; ELECTRON-TRANSFER; GOLD NANOPARTICLES; CARBON NANOTUBES; HIGHLY EFFICIENT; TIO2; REDUCTION; CATALYSTS; HYDROGENATION;

D O I：

10.1039/c3nj01050c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein, we report the stabilization of silver and gold nanoparticles (Ag/Au NPs) on graphene oxide (GO) functionalized with PAMAM dendrimers. The grafting of the PAMAM dendrimers on GO has been investigated using TGA and Raman spectral studies and the stabilization of the Ag/Au NPs on the dendritic structures has been confirmed using XRD, UV-Vis and FT-IR spectra, SEM and TEM studies. The catalytic activity of the prepared nanocatalysts towards the degradation of organic azo dyes, namely methyl orange and congo red, has been tested. The prepared nanocatalysts were found to exhibit excellent catalytic activity towards the complete degradation of both methyl orange and congo red within only a few seconds.

引用

页码：1551 / 1558

页数：8

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