Radiation synthesis of CdS/reduced graphene oxide nanocomposites for visible-light-driven photocatalytic degradation of organic contaminant

被引：44

作者：

Fu, Xiaoyang ^{[1
]}

Zhang, Youwei ^{[2
]}

Cao, Pengfei ^{[1
]}

Ma, Huiling ^{[3
]}

Liu, Pinggui ^{[2
]}

He, Lihua ^{[2
]}

Peng, Jing ^{[1
]}

Li, Jiuqiang ^{[1
]}

Zhai, Maolin ^{[1
]}

机构：

[1] Peking Univ, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys,Minist Educ, Radiochem & Radiat Chem Key Lab Fundamental Sci, Beijing 100871, Peoples R China

[2] Beijing Inst Aeronaut Mat, Aviat Key Lab Sci & Technol Stealth Mat, Beijing 100095, Peoples R China

[3] Beijing Res Ctr Radiat Applicat, Beijing Key Lab Radiat Adv Mat, Beijing 100015, Peoples R China

来源：

RADIATION PHYSICS AND CHEMISTRY | 2016年 / 123卷

基金：

中国国家自然科学基金;

关键词：

Gamma-ray radiation synthesis; CdS/reduced graphene oxide (CdS/RGO) nanocomposites; Photo-catalytic performance; CDS QUANTUM DOTS; FACILE SYNTHESIS; SEMICONDUCTOR COLLOIDS; HYDROTHERMAL SYNTHESIS; DECORATED GRAPHENE; PHOTOVOLTAIC CELLS; SOLAR-CELLS; ZNO; TIO2; IRRADIATION;

D O I：

10.1016/j.radphyschem.2016.02.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

CdS/reduced graphene oxide (CdS/RGO) nanocomposites were successfully synthesized via a one-step gamma-ray radiation-induced reduction method. The composition and structure of the prepared nanocomposites were characterized by thermal gravimetric analysis, micro FTIR spectroscopy, UV-vis spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy. It was found that increasing dose could improve the degree of reduction of graphite oxide (GO), and the feed ratio of GO to CdCl2 center dot 2.5H(2)O significantly influenced the size and dispersion of the CdS nano particles. The nanocomposites prepared under dose of 300 kGy and the feed ratio of GO to CdCl2 center dot 2.5H(2)O 1.0 wt% exhibited high visible-light photocatalytic performance for the degradation of Rhodamine B with degradation efficiency of 93%. This work provides a novel and facile method to produce the nano composites as efficient photocatalysts for the removal of organic contaminants from aqueous solution. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：79 / 86

页数：8

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