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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
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume31Issue:5Pages:454—460
Subtype期刊文献
AbstractGraphene 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.
KeywordAqueous-solutions Nanosheets Sorption Ions
DOI10.15541/jim20150486
Indexed BySCI
Language英语
WOS IDWOS:000376674600002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25754
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorLi, Z (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
Recommended Citation
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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