Adsorption-photodegradation synergetic removal of methylene blue from aqueous solution by NiO/graphene oxide nanocomposite

被引：66
作者：
Rong, Xinshan [1 ]
Qiu, Fengxian [2 ]
Zhang, Chen [2 ]
Fu, Liang [2 ]
Wang, Yuanyuan [2 ]
Yang, Dongya [2 ]
机构：
[1] Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
来源：
POWDER TECHNOLOGY | 2015年 / 275卷
关键词：
Adsorption; Photodegradation; Nanocomposite; Removal efficiency; LITHIUM-ION BATTERIES; ENHANCED PHOTOCATALYTIC PERFORMANCE; MALACHITE GREEN; GRAPHENE OXIDE; NIO; DEGRADATION; DYE; NANOPARTICLES; HYBRID; FIBERS;
D O I：
10.1016/j.powtec.2015.01.079
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Nickel oxide/graphene oxide (NiO/GO) nanocomposite was prepared by a hydrothermal method combining a subsequent calcination process. X-ray diffraction (XRD), Raman spectrometer (Raman), high resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED) and X-ray photoelectron spectroscopy (XPS) methods were used for the characterization of nanocomposite. Removal of aromatic heterocyclic dye methylene blue (MB) from aqueous solution using adsorption and photodegradation activity of NiO/GO nanocomposite was investigated. The effects of NiO/GO nanocomposite dose, pH, and contact time on the removal efficiency of MB were also investigated. Compared with that in the dark, NiO/GO nanocomposite shows a faster and higher removal efficiency by the photodegradation and adsorption under visible light irradiation. A remarkable removal efficiency of MB achieved 97.54% by NiO/GO nanocomposite after 2 h. It could be concluded that synergy of photodegradation and adsorption has a significant progress for removal of MB under visible light compared with that of only adsorption without light. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：322 / 328
页数：7
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