Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite

doi:10.1016/j.seppur.2016.12.026

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	Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite
	Pan, Duoqiang 1,3; Fan, Qiaohui 2; Fan, Fuyou 1; Tang, Yongfeng 1; Zhang, Yvying 1; Wu, Wangsuo 1,3
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2017-04-28
卷号	177 页码:86-93
关键词	Uranium Removal Chitosan Attapulgite Composite Sorption
ISSN号	1383-5866
DOI	10.1016/j.seppur.2016.12.026
文献子类	Article
英文摘要	The low cost chitosan@attapulgite composite (CS@ATP) were prepared by self-assembly method and applied for U(VI) removal from aqueous solutions. Scanning Electron microscopy (SEM) images showed the uniform decoration of chitosan (CS) on attapulgite (ATP) surface. X-ray diffraction (XRD) patterns indicated that the coating of chitosan altered the structure of ATP to some extents. Batch sorption results showed that sorption ability of ATP toward U(VI) was greatly improved after CS modification above pH 5.0. The ionic strength independent sorption suggested that inner-sphere U(VI) complexes were formed by mainly bonding to the oxygen-containing functional groups of CS@ATP. In the presence of humic substances, U(VI) sorption on CS@ATP was obviously enhanced under acidic conditions, while restrained in alkaline condition. Moreover, the presence of humic acid provoked the desorption of U(VI) from CS@ATP to a certain extent. These findings herein suggested that CS@ATP composite is a potential and suitable candidate for the preconcentration and separation of U(VI) from contaminated natural wastewater and aquifer. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	IONIC-STRENGTH ; HUMIC-ACID ; ORGANIC-MATTER ; CLAY-MINERALS ; SORPTION ; ADSORPTION ; PH ; TEMPERATURE ; KINETICS ; U(VI)
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000393534600009
资助机构	National Natural Science Foundation - China(21327801 ; Key Laboratory Project of Gansu Province(1309RTSA041) ; "100-Talent" Program from the Chinese Academy of Sciences in Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics ; Fundamental Research Funds for the Central University(lzujbky-2015-70) ; open project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University(lzummm2015011) ; 41573128 ; 21601179 ; 21601169) ; National Natural Science Foundation - China(21327801 ; Key Laboratory Project of Gansu Province(1309RTSA041) ; "100-Talent" Program from the Chinese Academy of Sciences in Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics ; Fundamental Research Funds for the Central University(lzujbky-2015-70) ; open project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University(lzummm2015011) ; 41573128 ; 21601179 ; 21601169) ; National Natural Science Foundation - China(21327801 ; Key Laboratory Project of Gansu Province(1309RTSA041) ; "100-Talent" Program from the Chinese Academy of Sciences in Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics ; Fundamental Research Funds for the Central University(lzujbky-2015-70) ; open project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University(lzummm2015011) ; 41573128 ; 21601179 ; 21601169) ; National Natural Science Foundation - China(21327801 ; Key Laboratory Project of Gansu Province(1309RTSA041) ; "100-Talent" Program from the Chinese Academy of Sciences in Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics ; Fundamental Research Funds for the Central University(lzujbky-2015-70) ; open project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University(lzummm2015011) ; 41573128 ; 21601179 ; 21601169)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53112]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Fan, Qiaohui
作者单位	1.Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, 382 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China 3.Minist Educ, Key Lab Special Funct Mat & Struct Design, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Pan, Duoqiang,Fan, Qiaohui,Fan, Fuyou,et al. Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,177:86-93.
APA	Pan, Duoqiang,Fan, Qiaohui,Fan, Fuyou,Tang, Yongfeng,Zhang, Yvying,&Wu, Wangsuo.(2017).Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite.SEPARATION AND PURIFICATION TECHNOLOGY,177,86-93.
MLA	Pan, Duoqiang,et al."Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite".SEPARATION AND PURIFICATION TECHNOLOGY 177(2017):86-93.