中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
  4. 中科院等离子体物理研究所
Bonding properties of humic acid with attapulgite and its influence on U(VI) sorption

文献类型：期刊论文

作者Tan, Liqiang1,2; Wang, Xiangxue1,2; Tan, Xiaoli2,3; Mei, Huiyang2; Chen, Changlun2; Hayat, Tasawar4; Alsaedi, Ahmed4; Wen, Tao1; Lu, Songsheng1; Wang, Xiangke1,3,4
刊名CHEMICAL GEOLOGY
出版日期2017-08-05
卷号464期号:无页码:91-100
关键词Humic Acid Attapulgite Interaction Fluorescence Uranium(Vi)
DOI10.1016/j.chemgeo.2017.01.024
文献子类Article
英文摘要Humic acid (HA) can markedly change the surface charge of clay minerals and influences the sorption of uranium(U) on clay minerals in aquatic environments. Furthermore, HA can potentially affect the mobility of U(VI) in the natural environment. The effect of HA on the surface charge, aggregation, sorption and bonding properties of attapulgite [(Mg,Al)(4)(Si)(8)(O,OH,H2O)26 center dot nH(2)O] was investigated using fluorescence spectroscopy technique in combination with other analytical tools. The UV-vis absorbance spectra and fluorescence peaks obtained in the experiments are attributed to a large number of electron donating substitutes, such as carboxylic acid-like and phenolic acid-like fluorophores, in HA. Electrostatic attraction and ligand exchanges are the primary interaction mechanisms between attapulgite and HA. A significant modification of excitation-emission matrix (EEM) spectra and emission intensity of HA are observed after the interaction, indicating a different binding complex of HA on attapulgite at the molecular level. The sorption kinetics indicate that strong chemical interactions and/or surface complexation primarily contributed to U(VI) sorption. An analysis of U(VI) sorption isotherms and model fitting reveals that the sorption of U(VI) onto attapulgite is a spontaneous and endothermic process. The presence of HA is an important factor that greatly influences the immobilization and removal of U(VI) ions from aqueous solutions. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词DYNAMIC LIGHT-SCATTERING ; AQUEOUS-SOLUTION ; GRAPHENE OXIDES ; METAL-IONS ; FLUORESCENCE SPECTROSCOPY ; BACILLUS-SUBTILIS ; EXAFS TECHNIQUES ; ORGANIC-MATTER ; PARTICLE-SIZE ; REMOVAL
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000403860300011
资助机构National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 41273134 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 21225730 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21577032 ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148) ; 21375148)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31996]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China
3.Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Nanjing, Jiangsu, Peoples R China
4.King Abdulaziz Univ, NAAM Res Grp, Fac Sci, Jeddah 21589, Saudi Arabia
推荐引用方式
GB/T 7714		 Tan, Liqiang,Wang, Xiangxue,Tan, Xiaoli,et al. Bonding properties of humic acid with attapulgite and its influence on U(VI) sorption[J]. CHEMICAL GEOLOGY,2017,464(无):91-100.
APA Tan, Liqiang.,Wang, Xiangxue.,Tan, Xiaoli.,Mei, Huiyang.,Chen, Changlun.,...&Wang, Xiangke.(2017).Bonding properties of humic acid with attapulgite and its influence on U(VI) sorption.CHEMICAL GEOLOGY,464(无),91-100.
MLA Tan, Liqiang,et al."Bonding properties of humic acid with attapulgite and its influence on U(VI) sorption".CHEMICAL GEOLOGY 464.无(2017):91-100.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。