Impact of environmental conditions on the sorption behavior of radionuclide 90 Sr(II) on Na-montmorillonite
作者： Shujun Yu , Huiyang Mei , Xin Chen , Xiaoli Tan , Bashir Ahmad
DOI: 10.1016/J.MOLLIQ.2014.12.041
关键词: Ionic strength 、 Endothermic process 、 Freundlich equation 、 Ion exchange 、 Langmuir 、 Inorganic chemistry 、 Sorption 、 Montmorillonite 、 Humic acid 、 Chemistry 、 Physical and Theoretical Chemistry 、 Spectroscopy 、 Materials Chemistry 、 Atomic and Molecular Physics, and Optics 、 Electronic, Optical and Magnetic Materials 、 Condensed matter physics
摘要: Abstract Clay minerals have been studied extensively due to their strong sorption and complexation ability toward various environmental pollutants. In this study, the of 90 Sr(II) on Na-montmorillonite was as a function conditions such pH, ionic strength, humic acid (HA) temperature. The results indicated that strongly dependent pH strength. experimental data simulated by diffuse-layer model (DLM) well with aid Visual Minteq 3.0. At low dominated outer-sphere surface ion exchange Na + /H surfaces, whereas inner-sphere main mechanism at high pH. presence HA enhanced pH pH > 7.0. Langmuir Freundlich models were used simulate isotherms three different temperatures 303, 318 333 K. thermodynamic parameters (Δ H , Δ S G ) calculated from temperature-dependent an endothermic spontaneous process. crucial understand interaction behavior Na-montmorillonite.
elsevier.com
sci-hub.se 参考文章(64)
Xiaoli Tan, Changlun Chen, Shaoming Yu, Xiangke Wang, Sorption of Ni2+ on Na-rectorite studied by batch and spectroscopy methods Applied Geochemistry. ,vol. 23, pp. 2767- 2777 ,(2008) , 10.1016/J.APGEOCHEM.2008.07.008
Tiziana Missana, Ana Benedicto, Miguel García-Gutiérrez, Ursula Alonso, Modeling cesium retention onto Na-, K- and Ca-smectite: Effects of ionic strength, exchange and competing cations on the determination of selectivity coefficients Geochimica et Cosmochimica Acta. ,vol. 128, pp. 266- 277 ,(2014) , 10.1016/J.GCA.2013.10.007
S. Handley-Sidhu, J. A. Hriljac, M. O. Cuthbert, J. C. Renshaw, R. A. D. Pattrick, J. M. Charnock, B. Stolpe, J. R. Lead, S. Baker, L. E. Macaskie, Bacterially produced calcium phosphate nanobiominerals: sorption capacity, site preferences, and stability of captured radionuclides. Environmental Science & Technology. ,vol. 48, pp. 6891- 6898 ,(2014) , 10.1021/ES500734N
Mostafa Youssef, Roland J.-M. Pellenq, Bilge Yildiz, Docking 90Sr radionuclide in cement: An atomistic modeling study Physics and Chemistry of The Earth. ,vol. 70, pp. 39- 44 ,(2014) , 10.1016/J.PCE.2013.11.007
Tao Hu, Liqiang Tan, Sorption/desorption of radionickel on/from Na-montmorillonite: kinetic and thermodynamic studies Journal of Radioanalytical and Nuclear Chemistry. ,vol. 292, pp. 103- 112 ,(2012) , 10.1007/S10967-011-1377-3
Wenbao Jia, Songsheng Lu, Effect of pH, foreign ions and temperature on radionickel sorption onto bentonite from Inner Mongolia, China Journal of Radioanalytical and Nuclear Chemistry. ,vol. 299, pp. 1417- 1426 ,(2014) , 10.1007/S10967-013-2865-4
Shengdong Pan, Yun Zhang, Haoyu Shen, Meiqin Hu, An intensive study on the magnetic effect of mercapto-functionalized nano-magnetic Fe3O4 polymers and their adsorption mechanism for the removal of Hg(II) from aqueous solution Chemical Engineering Journal. ,vol. 210, pp. 564- 574 ,(2012) , 10.1016/J.CEJ.2012.09.016
Congcong Ding, Wencai Cheng, Yubing Sun, Xiangke Wang, Determination of chemical affinity of graphene oxide nanosheets with radionuclides investigated by macroscopic, spectroscopic and modeling techniques. Dalton Transactions. ,vol. 43, pp. 3888- 3896 ,(2014) , 10.1039/C3DT52881B
Hayrettin Yüzer, Mustafa Kara, Eyüp Sabah, Mehmet Sabri Çelik, Contribution of cobalt ion precipitation to adsorption in ion exchange dominant systems. Journal of Hazardous Materials. ,vol. 151, pp. 33- 37 ,(2008) , 10.1016/J.JHAZMAT.2007.05.052
Shitong Yang, Jiaxing Li, Yi Lu, Yixue Chen, Xiangke Wang, Sorption of Ni(II) on GMZ bentonite: Effects of pH, ionic strength, foreign ions, humic acid and temperature Applied Radiation and Isotopes. ,vol. 67, pp. 1600- 1608 ,(2009) , 10.1016/J.APRADISO.2009.03.118