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Kinetics and mechanism of Sr(II) adsorption by Al-Fe2O3: Evidence from XPS analysis

文献类型：期刊论文

作者Li, Mengxue1; Liu, Haibo1; Zhu, Hongjie2; Gao, Huiyi3; Zhang, Shiwen4; Chen, Tianhu1
刊名JOURNAL OF MOLECULAR LIQUIDS
出版日期2017-05-01
卷号233期号:无页码:364-369
关键词Al-fe2o3 Sr(Ii) Xps Analysis Adsorption Mechanism
DOI10.1016/j.molliq.2017.03.045
文献子类Article
英文摘要The Al-Fe2O3 with different aluminum contents were synthesized by heating Al-substituted goethite and were characterized by FESEM, XRD, FT-IR and XPS techniques. The characteristic results showed that the Fe3+ ion in hematite was partly substituted by Al3+ ion, leading to the change of crystal structure. The batch experiments indicated that the adsorptions of Sr(II) on Al-Fe2O3 slowly increased with increasing pH starting from 2 to 11. The pseudo-second-order kinetic and the Langmuir model gave the better fits to the adsorption kinetics and isotherms, respectively. The thermodynamic parameters indicated that the adsorption of Sr(II) on Fe2O3 was an endothermic and spontaneous process. The XPS analysis demonstrated that the oxygen-containing functional groups were responsible for the Sr(II) adsorption. These findings indicated that Al-Fe2O3 may be a valuable candidate for pre-concentration and solidification of radionuclides from aqueous solutions. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词REDUCED GRAPHENE OXIDES ; AL-SUBSTITUTED GOETHITE ; MODELING TECHNIQUES ; CARBONACEOUS NANOFIBERS ; AQUEOUS-SOLUTIONS ; ALUMINUM SUBSTITUTION ; COMPETITIVE SORPTION ; EU(III) ADSORPTION ; BACILLUS-SUBTILIS ; U(VI)
WOS研究方向Chemistry ; Physics
语种英语
WOS记录号WOS:000401202500045
资助机构National Natural Science Foundation of China(41402030 ; National Natural Science Foundation of China(41402030 ; National Natural Science Foundation of China(41402030 ; National Natural Science Foundation of China(41402030 ; 41072035 ; 41072035 ; 41072035 ; 41072035 ; 41130206 ; 41130206 ; 41130206 ; 41130206 ; 41402029 ; 41402029 ; 41402029 ; 41402029 ; 41572029) ; 41572029) ; 41572029) ; 41572029) ; National Natural Science Foundation of China(41402030 ; National Natural Science Foundation of China(41402030 ; National Natural Science Foundation of China(41402030 ; National Natural Science Foundation of China(41402030 ; 41072035 ; 41072035 ; 41072035 ; 41072035 ; 41130206 ; 41130206 ; 41130206 ; 41130206 ; 41402029 ; 41402029 ; 41402029 ; 41402029 ; 41572029) ; 41572029) ; 41572029) ; 41572029)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31853]  
专题合肥物质科学研究院_中科院合肥智能机械研究所
作者单位1.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R China
2.Anhui Acad Agr Sci, Inst Agr Prod Proc, Hefei 230031, Peoples R China
3.Chinese Acad Sci, Inst Intelligent Machines, POB 1130, Hefei 230031, Peoples R China
4.Anhui Univ Sci & Technol, Sch Earth & Environm, Huinan 232001, Peoples R China
推荐引用方式
GB/T 7714		 Li, Mengxue,Liu, Haibo,Zhu, Hongjie,et al. Kinetics and mechanism of Sr(II) adsorption by Al-Fe2O3: Evidence from XPS analysis[J]. JOURNAL OF MOLECULAR LIQUIDS,2017,233(无):364-369.
APA Li, Mengxue,Liu, Haibo,Zhu, Hongjie,Gao, Huiyi,Zhang, Shiwen,&Chen, Tianhu.(2017).Kinetics and mechanism of Sr(II) adsorption by Al-Fe2O3: Evidence from XPS analysis.JOURNAL OF MOLECULAR LIQUIDS,233(无),364-369.
MLA Li, Mengxue,et al."Kinetics and mechanism of Sr(II) adsorption by Al-Fe2O3: Evidence from XPS analysis".JOURNAL OF MOLECULAR LIQUIDS 233.无(2017):364-369.

入库方式： OAI收割

来源：合肥物质科学研究院

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