Synthesis and characterization of reduced-graphene oxide/TiO2/Zeolite-4A: A bifunctional nanocomposite for abatement of methylene blue

被引：51
作者：
Nagarjuna, Ravikiran [1 ]
Challagulla, Swapna [1 ]
Alla, Navateja [1 ]
Ganesan, Ramakrishnan [1 ]
Roy, Sounak [1 ]
机构：
[1] Birla Inst Technol & Sci BITS Pilani, Dept Chem, Hyderabad 500078, Andhra Pradesh, India
来源：
MATERIALS & DESIGN | 2015年 / 86卷
关键词：
Reduced graphene oxide; TiO2; Zeolite; Adsorption; Photocatalytic degradation; PHOTOCATALYTIC DEGRADATION; TIO2-GRAPHENE NANOCOMPOSITES; OXIDE; REDUCTION; DYES; ADSORPTION; COMPOSITE; ANATASE;
D O I：
10.1016/j.matdes.2015.07.116
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A bifunctional nanocomposite photocatalyst that possesses high photocatalytic activity as well as enhanced adsorption capability was developed. The adsorption component, graphene oxide was synthesized following an improved oxidation method from graphite flakes; while the photoactive component, TiO2 was synthesized by the polymerizable sol gel route. The as-synthesized graphene oxide was partially photo-reduced, and got anchored as reduced graphene oxide onto TiO2. The materials have been thoroughly characterized with XRD, Raman spectroscopy, TGA, SEM and diffuse reflectance spectroscopy techniques. This reduced-graphene oxide/TiO2 was dispersed over the Zeolite-4A and this nanocomposite hybrid system exhibited remarkable adsorption capability as well as high photocatalytic degradation efficiency for methylene blue. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：621 / 626
页数：6
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