PHOTOCATALYTIC DEGRADATION OF AZURE B UNDER VISIBLE LIGHT IRRADIATION BY REDUCED GRAPHENE OXIDE-NiS COMPOSITE

被引：3
|
作者：
Chaudhary, Ruchi [1 ]
Ameta, Suresh C. [1 ]
Ameta, Rakshit [1 ,2 ]
机构：
[1] PAHER Univ, Dept Chem, Udaipur 313003, Rajasthan, India
[2] JRN Rajasthan Vidyapeeth, Dept Chem, Udaipur 313001, Rajasthan, India
来源：
MACEDONIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING | 2019年 / 38卷 / 01期
关键词：
reduced graphene oxide; nickel sulfide; azure B; photocatalytic degradation; DYE; NANOCOMPOSITES;
D O I：
10.20450/mjcce.2019.1622
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A composite of reduced graphene oxide (RGO) and nickel sulfide (NiS) was prepared via mechanochemical method and further characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and energy dispersive analysis of X-rays (EDAX). NiS was prepared via precipitation method, and RGO was prepared via reduction of graphene oxide. The photocatalytic performances of as prepared RGO/NiS composite, RGO and NiS were evaluated using azure B model system. The composite exhibited good photocatalytic activity as compared to NiS as well as RGO. The optimum conditions obtained for the photocatalytic degradation of azure B were the following: pH = 8.0, [Azure B] = 2.0 x 10 (-5) M, amount of composite = 0.10 g, and light intensity = 50.0 mW.cm(-2). The rate of degradation of azure B with the composite was found to be 1.79 x 10 (-4) s (-1).
引用
收藏
页码：107 / 114
页数：8
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