Influence of Preparation Method on Oxidation Degree of Graphene Oxide and Adsorption for Th (IV) and U(VI)

doi:10.15541/jim20150486

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Influence of Preparation Method on Oxidation Degree of Graphene Oxide and Adsorption for Th (IV) and U(VI)
	Wang, XN; Meng, H; Ma, FY; Li, Z; Zhang, L; Li, Z (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
	2016
发表期刊	JOURNAL OF INORGANIC MATERIALS
ISSN	1000-324X
卷号	31 期号:5 页码:454—460
文章类型	期刊文献
摘要	Graphene oxide (GO) was prepared from graphite using Hummers' method, improved Hummers' method and modified Hummers' method. The samples were characterized by FT-IR spectroscope, TGA, XRD, XPS, SEM and element analysis. The results showed that graphene oxide was more oxidized prepared by the improved Hummers' method(IGO). The isothermal adsorption experiments of Th(IV) and U(VI) on graphene oxide showed that the maximum adsorption capacity of Th(IV) on IGO was 192.3 mg/g, increased by 38.5% as compared with that of GO prepared by Hummers' method. The maximum adsorption capacity of U(VI) was 156.2 mg/g, increased by 28.1%. Both of above values are in accord with Langmuir isotherm model. Furthermore, kinetic and thermodynamic parameters of Th (IV) and U(VI) adsorption on IGO were investigated by using batch experiments, confirming that adsorption fits pseudo-second kinetic equations, which are spontaneous and endothermic.
关键词	Aqueous-solutions Nanosheets Sorption Ions
DOI	10.15541/jim20150486
收录类别	SCI
语种	英语
WOS记录号	WOS:000376674600002
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/25754
专题	中科院上海应用物理研究所2011-2018年
通讯作者	Li, Z (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
推荐引用方式 GB/T 7714	Wang, XN,Meng, H,Ma, FY,et al. Influence of Preparation Method on Oxidation Degree of Graphene Oxide and Adsorption for Th (IV) and U(VI)[J]. JOURNAL OF INORGANIC MATERIALS,2016,31(5):454—460.
APA	Wang, XN,Meng, H,Ma, FY,Li, Z,Zhang, L,&Li, Z .(2016).Influence of Preparation Method on Oxidation Degree of Graphene Oxide and Adsorption for Th (IV) and U(VI).JOURNAL OF INORGANIC MATERIALS,31(5),454—460.
MLA	Wang, XN,et al."Influence of Preparation Method on Oxidation Degree of Graphene Oxide and Adsorption for Th (IV) and U(VI)".JOURNAL OF INORGANIC MATERIALS 31.5(2016):454—460.

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