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题名:
Influence of Preparation Method on Oxidation Degree of Graphene Oxide and Adsorption for Th (IV) and U(VI)
作者: Wang, XN; Meng, H; Ma, FY; Li, Z; Zhang, L
刊名: JOURNAL OF INORGANIC MATERIALS
出版日期: 2016
卷号: 31, 期号:5, 页码:454—460
关键词: AQUEOUS-SOLUTIONS ; NANOSHEETS ; SORPTION ; IONS
DOI: 10.15541/jim20150486
通讯作者: Li, Z (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: 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.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000376674600002
ISSN号: 1000-324X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25754
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
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,2016-01-01,31(5):454—460.
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