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兰州大学机构库  > 核科学与技术学院  > 期刊论文
题名: Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite
作者: Pan, DQ; Fan, QH; Fan, FY; Tang, YF; Zhang, YY; Wu, WS
收录类别: SCIE
出版日期: 2017-04-28
刊名: SEPARATION AND PURIFICATION TECHNOLOGY
卷号: 177, 页码:86-93
出版者: ELSEVIER
出版地: AMSTERDAM
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.
关键词: Uranium ; Removal ; Chitosan ; Attapulgite ; Composite ; Sorption
作者部门: [Pan, Duoqiang ; Fan, Fuyou ; Tang, Yongfeng ; Zhang, Yvying ; Wu, Wangsuo] Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Gansu, Peoples R China ; [Fan, Qiaohui] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, 382 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China ; [Pan, Duoqiang ; Wu, Wangsuo] Minist Educ, Key Lab Special Funct Mat & Struct Design, Lanzhou 730000, Gansu, Peoples R China
通讯作者: Fan, QH (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, 382 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China.
学科分类: Engineering
文章类型: Article
所属项目编号: National Natural Science Foundation - China [21327801, 41573128, 21601179, 21601169] ; 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]
所属项目名称: 国家自然科学基金项目 ; 中央高校基本科研业务费专项资金 ; 甘肃省重点实验室资助项目
项目资助者: NSFC ; LZU ; GSSTD
语种: 英语
DOI: 10.1016/j.seppur.2016.12.026
ISSN号: 1383-5866
WOS记录号: WOS:000393534600009
IR记录号: WOS:000393534600009
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/189194
Appears in Collections:核科学与技术学院_期刊论文

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Recommended Citation:
Pan, DQ,Fan, QH,Fan, FY,et al. Removal of uranium contaminant from aqueous solution by chitosan@attapulgite composite[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,177:86-93.
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