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Spectroscopic Investigation of Enhanced Adsorption of U(VI) and Eu(III) on Magnetic Attapulgite in Binary System

文献类型：期刊论文

作者Xie, Yi1; Shao, Dadong1; Lu, Xirui2; Hayat, Tasawar4; Alharbi, Njud S.3; Chen, Changlun1,3,4; Song, Gang6; Chen, Diyun6; Sun, Yubing5
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
出版日期2018-06-06
卷号57期号:22页码:7533-7543
ISSN号0888-5885
DOI10.1021/acs.iecr.8b01803
通讯作者Sun, Yubing(sunyb@ipp.ac.cn)
英文摘要The coadsorption of uranium and europium on magnetic attapulgite (M-ATT) was explored through batch experiments and spectroscopic tests. The adsorption processes of U(VI) and Eu(III) onto M-ATT were highly affected by the solution pH but not by the ionic strength, indicating that the adsorption of the two metals was predominated through inner-sphere surface complexation. Adsorption isotherms demonstrated that the maximum adsorption capacities of U(VI) on M-ATT in the single-solute system (e.g., 60.48 mg g(-1) at pH 6.0) were lower than that in the binary-solute system (e.g., 63.03 mg g(-1) at pH 6.0), and the same trend was noticed for Eu(III) adsorption due to their synergistic effect. The existence of U(VI) and U(IV) species evidenced the partial reduction of adsorbed U(Vl) to U(IV) by M-ATT based on XPS tests. Hence, the enhanced adsorption of U(VI) in the existence of Eu(III) is ascribed to the primary coadsorption and then the redox of adsorbed U(VI) to U(IV) by M-ATT, as well as the formation of new sorbent active sites derived from reductive coprecipitation (e.g., UO2+x(s)), which also increased the Eu(III) adsorption on M-ATT. The findings are significant for coadsorption of radionuclides by magnetic adsorbents in environmental pollution management.
WOS关键词LASER-FLUORESCENCE SPECTROSCOPY ; GRAPHENE OXIDE COMPOSITES ; AQUEOUS-SOLUTIONS ; EFFICIENT REMOVAL ; ACTIVATED CARBON ; THEORETICAL CALCULATION ; SORPTION ; BATCH ; IRON ; REDUCTION
资助项目National Natural Science Foundation of China[21477133] ; National Natural Science Foundation of China[11675210] ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources[GZDX2017K002] ; NASF[U1530131] ; Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences
WOS研究方向Engineering
语种英语
WOS记录号WOS:000434895300023
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38299]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Sun, Yubing
作者单位1.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Anhui, Peoples R China
2.Southwest Univ Sci Technol, Fundamental Sci Nucl Wastes & Environm Safety Lab, Mianyang 621010, Peoples R China
3.King Abdulaziz Univ, Fac Sci, Dept Biol Sci, Jeddah 21589, Saudi Arabia
4.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
5.North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China
6.Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Yi,Shao, Dadong,Lu, Xirui,et al. Spectroscopic Investigation of Enhanced Adsorption of U(VI) and Eu(III) on Magnetic Attapulgite in Binary System[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2018,57(22):7533-7543.
APA Xie, Yi.,Shao, Dadong.,Lu, Xirui.,Hayat, Tasawar.,Alharbi, Njud S..,...&Sun, Yubing.(2018).Spectroscopic Investigation of Enhanced Adsorption of U(VI) and Eu(III) on Magnetic Attapulgite in Binary System.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,57(22),7533-7543.
MLA Xie, Yi,et al."Spectroscopic Investigation of Enhanced Adsorption of U(VI) and Eu(III) on Magnetic Attapulgite in Binary System".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 57.22(2018):7533-7543.

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来源：合肥物质科学研究院

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