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

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成果类型：

期刊论文

作者：

Yu, Shujun;Wang, Xiangxue;Chen, Zhongshan;Tan, Xiaoli*;Wang, Hongqing;...

通讯作者：

Tan, Xiaoli;Guo, Wei;Wang, Xiangke

作者机构：

[Tan, Xiaoli; Wang, Xiangke; Hu, Jun; Tan, XL; Guo, Wei; Wang, XK; Wang, Xiangxue; Chen, Zhongshan; Yu, Shujun] North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China.

[Tan, Xiaoli; Wang, Xiangxue; Yu, Shujun] Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China.

[Wang, Xiangke; Wang, Hongqing] Univ South China, Sch Chem & Chem Engn, 28 Changsheng West Rd, Hengyang 421001, Hunan, Peoples R China.

[Wang, Xiangke; Hu, Jun; Alsaedi, Ahmed] King Abdulaziz Univ, NAAM Res Grp, Fac Sci, Jeddah 21589, Saudi Arabia.

[Alharbi, Njud S.] King Abdulaziz Univ, Dept Biol Sci, Biotechnol Res Grp, Fac Sci, Jeddah, Saudi Arabia.

通讯机构：

[Tan, XL; Guo, W; Wang, XK] N

North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China.

语种：

英文

关键词：

Desorption;Mechanism;Na-montmorillonite;Radionickel;Sorption

期刊：

Chemical Engineering Journal

ISSN：

1385-8947

年：

2016

卷：

302

页码：

77-85

DOI：

10.1016/j.cej.2016.05.043

基金类别：

The effects of pH and ionic strength on 63Ni(II) sorption onto Na-montmorillonite were shown in Fig. 1A. The sorption of 63Ni(II) increased slowly with pH increasing at pH 2.0–6.0, then increased sharply with pH increasing at pH > 6.0. At lower pH values, the 63Ni(II) sorption was inhibited in the strong acidic region due to the presence of H+ ions. Therefore, the 63Ni(II) sorption was low in this area because the competing H+ ions made the obstacle with the 63Ni(II) ions for the same sorption

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本校为其他机构

院系归属：

化学化工学院

摘要：

Understanding the rate and extent of 63Ni(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 63Ni(II) sorption/desorption on/from Na-montmorillonite. The results indicated that the sorption/desorption of 63Ni(II) on/from Na-montmorillonite were strongly dependent on pH and electrolyte cations. Desorption abilities of 63Ni(II) were Na+ ≈ K+ > Ca2+ ≈ Mg2+...

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

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