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Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

文献类型：期刊论文

作者Yu, Shujun1,2; Wang, Xiangxue1,2; Chen, Zhongshan1; Tan, Xiaoli1,2; Wang, Hongqing3; Hu, Jun1,4; Alsaedi, Ahmed4; Alharbi, Njud S.5; Guo, Wei1; Wang, Xiangke1,3,4
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2016-10-15
卷号302期号:无页码:77-85
关键词Radionickel Na-montmorillonite Sorption Desorption Mechanism
DOI10.1016/j.cej.2016.05.043
文献子类Article
英文摘要Understanding the rate and extent of Ni-63(II) sorption and desorption on/from mineral surfaces are important to predict its mobility performance in the natural environment. We herein systematically investigated the effects of pH, electrolyte cations, humic acid (HA) and temperature on Ni-63(II) sorption/desorption on/from Na-montmorillonite. The results indicated that the sorption/desorption of Ni-63 (II) on/from Na-montmorillonite were strongly dependent on pH and electrolyte cations. Desorption abilities of Ni-63(II) were Na+ approximate to Ca2+ approximate to Mg2+ at the cationic concentration of 0.2 mol/L, which was associated with the clay tactoid size. The kinetic results suggested that Ni-63(II) sorption/desorption initially increased rapidly and remained constant as time increasing. The presence of HA influenced Ni-63(II) sorption clearly and promoted Ni-63(II) desorption as a result of the dissolution of ternary surface complexes. Increasing temperature was favorable for the sorption reaction owing to the formation of strong inner sphere complexes, however, hampered the desorption reaction because of the increased stability of inner-sphere complexes or the aggregation of montmorillonite. The results are crucial to understand the physicochemical behavior of radionicicel in the natural environment. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词LAYERED DOUBLE HYDROXIDE ; IONIC-STRENGTH ; FULVIC-ACID ; CONJUGATE ADSORBENT ; EXAFS TECHNIQUES ; ENHANCED SEQUESTRATION ; DISSOLUTION KINETICS ; CONTAMINATED WATER ; SURFACE-CHEMISTRY ; HYBRID ADSORBENT
WOS研究方向Engineering
语种英语
WOS记录号WOS:000382590900009
资助机构NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; NSFC(91326202 ; 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) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/21799]  
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.Univ South China, Sch Chem & Chem Engn, 28 Changsheng West Rd, Hengyang 421001, Hunan, Peoples R China
4.King Abdulaziz Univ, NAAM Res Grp, Fac Sci, Jeddah 21589, Saudi Arabia
5.King Abdulaziz Univ, Dept Biol Sci, Biotechnol Res Grp, Fac Sci, Jeddah, Saudi Arabia
推荐引用方式
GB/T 7714		 Yu, Shujun,Wang, Xiangxue,Chen, Zhongshan,et al. Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature[J]. CHEMICAL ENGINEERING JOURNAL,2016,302(无):77-85.
APA Yu, Shujun.,Wang, Xiangxue.,Chen, Zhongshan.,Tan, Xiaoli.,Wang, Hongqing.,...&Wang, Xiangke.(2016).Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature.CHEMICAL ENGINEERING JOURNAL,302(无),77-85.
MLA Yu, Shujun,et al."Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature".CHEMICAL ENGINEERING JOURNAL 302.无(2016):77-85.

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来源：合肥物质科学研究院

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