One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye

doi:10.1016/j.cej.2017.10.156

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	One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye
	Zheng, Xiaogang; Huang, Ming; You, Yaohui; Fu, Xiaojing; Liu, Yong; Wen, Jing
	2018-02-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	334 页码:1399-1409
关键词	Mgo@carbon Sandwich-like Structure Organic Dyes Sorption Capacity
摘要	Sandwich-like MgO@Carbon (MgO@C) nanocomposoites were fabricated using a one-pot hydrothermal route for the removal of organic dyes. The effects of contact time, pH value, carbon thickness, inorganic ions, and temperature on the sorption capacity of MgO@C were investigated. Compared with pure MgO nanoparticles and carbon bulks, the as-obtained sandwich-like MgO@C exhibited much higher sorption capacity for methyl orange due to the enhanced electrostatic interaction between anionic dye molecules and positively charged MgO@C nanocomposite. The sorption capacity of MgO@C increased with the increase of specific surface and pore volume, and the MgO@C-3 with a carbon thickness of around 5 nm exhibited the highest adsorption efficiency. The adsorption isotherm and kinetics of dye over MgO@C were well fitted by the Langmuir isotherm model and pseudo-second-order adsorption model, respectively. Further investigation indicated that the sorption process of methyl orange over sandwich-like MgO@C was controlled by the external mass transfer and intraparticle diffusion, and was a spontaneous and exothermic adsorption process.
DOI	10.1016/j.cej.2017.10.156
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6409
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Zheng, Xiaogang,Huang, Ming,You, Yaohui,et al. One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye[J]. CHEMICAL ENGINEERING JOURNAL,2018,334:1399-1409.
APA	Zheng, Xiaogang,Huang, Ming,You, Yaohui,Fu, Xiaojing,Liu, Yong,&Wen, Jing.(2018).One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye.CHEMICAL ENGINEERING JOURNAL,334,1399-1409.
MLA	Zheng, Xiaogang,et al."One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye".CHEMICAL ENGINEERING JOURNAL 334(2018):1399-1409.

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