Fabrication of ZnO:Ag/GO composite thin films for enhanced photocatalytic activity

被引：37
|
作者：
Ravichandran, K. [1 ]
Uma, R. [1 ,2 ]
Sriram, S. [3 ]
Balamurgan, D. [3 ]
机构：
[1] AVVM Sri Pushpam Coll Autonomous, PG & Res Dept Phys, Thanjavur 613503, Tamil Nadu, India
[2] Sengamala Thayaar Educ Trust Womens Coll, Dept Phys, Mannargudi 614016, Tamil Nadu, India
[3] SASTRA Univ, Sch Elect & Elect Engn, Dept Phys, Thanjavur 613401, Tamil Nadu, India
来源：
CERAMICS INTERNATIONAL | 2017年 / 43卷 / 13期
关键词：
ZnO:Ag/GO composites; Thin films; Photocatalysts; Nebulizer spray technique; DOPED ZNO NANOPARTICLES; ANTIBACTERIAL PROPERTIES; GRAPHENE; DEGRADATION; NANOCOMPOSITES; NANOPOWDERS; AG; HETEROSTRUCTURE; SN; PERFORMANCE;
D O I：
10.1016/j.ceramint.2017.05.020
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Zinc Oxide (ZnO), ZnO/GO (Graphene Oxide) and ZnO:Ag/GO nanocomposite thin films were deposited on glass substrates using a simple cost-effective automated jet nebulizer spray pyrolysis technique for photo catalytic degradation of organic dyes. The ZnO:Ag/GO film exhibits superior photocatalytic activity when compared with ZnO and ZnO/GO films. The degradation rate constant values of pristine ZnO and ZnO/GO films are found to be 0.0143 and 0.0176 min(-1), respectively whereas that of ZnO:Ag/GO is 0.0567 min(-1). The possible mechanism involved in the enhanced photocatalytic activity of ZnO:Ag/GO films for the degradation of Methylene Blue dye is proposed with the help of structural, optical and photoluminescence studies. The powder XRD profile confirms the hexagonal wurtzite structure of the synthesized catalysts. The results of Raman, XPS and EDX studies confirm the presence of GO in the ZnO/GO and GO and Ag in the ZnO:Ag/GO films.
引用
收藏
页码：10041 / 10051
页数：11
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