Uptake of Ni(II) from aqueous solution onto graphene oxide: Investigated by batch and modeling techniques

doi:10.1016/j.molliq.2016.12.045

	Uptake of Ni(II) from aqueous solution onto graphene oxide: Investigated by batch and modeling techniques
	Li, Peng 1,2; Gao, Huiyi3 ; Wang, Yiquan 1
	2017-02-01
发表期刊	JOURNAL OF MOLECULAR LIQUIDS
摘要	The contamination of Ni(II) on the apple orchards soil is more serious nowadays. The uptake of Ni(II) from aqueous solutions on graphene oxide (GO) was investigated by batch, XPS and modeling techniques. The batch experiments indicated that the uptake of Ni(II) on GO increased significantly with increasing pH from 2.0 to 6.0, and the high-level uptake of Ni(II) was observed at pH > 6.0. No effect of ionic strength on Ni(II) uptake indicated inner-sphere surface complexation dominated the uptake of Ni(II) on GO. The maximum uptake capacity of GO for Ni(II) calculated from Langmuir model was calculated to be 81.97 mg/g at pH 5.0 and 293 K. The results of XPS spectra indicated that a variety of oxygen-containing functional groups were responsible for the uptake of Ni(II) on GO. The uptake process of Ni(II) on GO can be satisfactorily fitted by surface complexation modeling using diffuse layer model with two inner-surface complexes. These findings are crucial for the potential application of graphene oxide in the uptake of heavy metals in environmental cleanup. (C) 2016 Elsevier B.V. All rights reserved.
文章类型	Article
关键词	Graphene Oxide Ni(Ii) Uptake Surface Complexation Modeling
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.molliq.2016.12.045
关键词[WOS]	COMPETITIVE SORPTION ; BACILLUS-SUBTILIS ; HEAVY-METALS ; U(VI) ; ADSORPTION ; MONTMORILLONITE ; RADIONUCLIDES ; ADSORBENTS ; DESORPTION ; REDUCTION
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(31601268) ; National Natural Science Foundation of China(31601268) ; National Natural Science Foundation of China(31601268) ; National Natural Science Foundation of China(31601268) ; Apple Orchards Marsh Fertilizer Application Technology Research and Demonstration Project of Agriculture Ministry(K312021012) ; Apple Orchards Marsh Fertilizer Application Technology Research and Demonstration Project of Agriculture Ministry(K312021012) ; Apple Orchards Marsh Fertilizer Application Technology Research and Demonstration Project of Agriculture Ministry(K312021012) ; Apple Orchards Marsh Fertilizer Application Technology Research and Demonstration Project of Agriculture Ministry(K312021012) ; Agricultural Special Fund Project of Shaanxi Province(K332021312) ; Agricultural Special Fund Project of Shaanxi Province(K332021312) ; Agricultural Special Fund Project of Shaanxi Province(K332021312) ; Agricultural Special Fund Project of Shaanxi Province(K332021312)
WOS研究方向	Chemistry ; Physics
WOS类目	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:000393535900034
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31707
专题	中科院合肥智能机械研究所
作者单位	1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China 2.Guidance Ctr Dev One Village One Brand Campaign S, Xian 710003, Peoples R China 3.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Peng,Gao, Huiyi,Wang, Yiquan. Uptake of Ni(II) from aqueous solution onto graphene oxide: Investigated by batch and modeling techniques[J]. JOURNAL OF MOLECULAR LIQUIDS,2017,227(无):303-308.
APA	Li, Peng,Gao, Huiyi,&Wang, Yiquan.(2017).Uptake of Ni(II) from aqueous solution onto graphene oxide: Investigated by batch and modeling techniques.JOURNAL OF MOLECULAR LIQUIDS,227(无),303-308.
MLA	Li, Peng,et al."Uptake of Ni(II) from aqueous solution onto graphene oxide: Investigated by batch and modeling techniques".JOURNAL OF MOLECULAR LIQUIDS 227.无(2017):303-308.

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