Sorption of Am(III) on attapulgite/iron oxide magnetic composites: effect of pH, ionic strength and humic acid

2012 ◽  
Vol 100 (10) ◽  
pp. 753-758 ◽  
Author(s):  
T. Yu ◽  
Qiao Hui Fan ◽  
W. S. Wu ◽  
S. P. Liu ◽  
D. Q. Pan ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Humic Acid ◽  
Ionic Strength ◽  
Magnetic Composites ◽  
Effect Of Ph

Effect of pH, ionic strength and humic acid on the sorption of uranium(VI) to attapulgite

2009 ◽  
Vol 67 (9) ◽  
pp. 1582-1590 ◽  
Author(s):  
Zhiwei Niu ◽  
Qiaohui Fan ◽  
Wenhua Wang ◽  
Junzheng Xu ◽  
Lei Chen ◽  
...  
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Effect Of Ph

Effect of pH and ionic strength on the interaction of humic acid with aluminium oxide

2000 ◽  
Vol 278 (4) ◽  
pp. 337-345 ◽  
Author(s):  
E. Tombácz ◽  
Á. Dobos ◽  
M. Szekeres ◽  
H. D. Narres ◽  
E. Klumpp ◽  
...  
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Aluminium Oxide ◽  
Effect Of Ph

Effect of pH, ionic strength, foreign ions, humic acid and temperature on sorption of radionuclide 60Co(II) on illite

2012 ◽  
Vol 292 (3) ◽  
pp. 1357-1366 ◽  
Author(s):  
Liu Xia ◽  
Chen Yuantao ◽  
Chi Yaling ◽  
Guo Zhijun ◽  
Cai Linsen
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Effect Of Ph ◽  
Foreign Ions

Sorption of Am(III) on Na-bentonite: Effect of pH, ionic strength, temperature and humic acid

2012 ◽  
Vol 23 (10) ◽  
pp. 1189-1192 ◽  
Author(s):  
Tao Yu ◽  
Wang Suo Wu ◽  
Qiao Hui Fan
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Effect Of Ph

Synthesis of kaolinite/iron oxide magnetic composites and their use in the removal of Cd(II) from aqueous solutions

2013 ◽  
Vol 67 (7) ◽  
pp. 1642-1649 ◽  
Author(s):  
Pengfei Zong ◽  
Shoufang Wang ◽  
Chaohui He
Keyword(s):  
Iron Oxide ◽  
Ionic Strength ◽  
Aqueous Solutions ◽  
Sorption Capacity ◽  
Sorption Isotherms ◽  
Entropy Change ◽  
Solution Chemistry ◽  
Standard Entropy ◽  
Iron Oxide Particles ◽  
Magnetic Composites

Kaolinite/iron oxide magnetic composites (kaolinite/MCs) were used as adsorbent for the removal of Cd(II) from aqueous solutions. The influences of pH, ionic strength, solid/liquid ratio and temperature on Cd(II) sorption on kaolinite/MCs were evaluated. The results showed that the removal of Cd(II) on kaolinite/MCs was strongly dependent on pH and ionic strength. An optimal kaolinite/MCs concentration mass per volume for removal of Cd(II) from aqueous solutions was 1.4 g L–1. The Langmuir and Freundlich models were used to simulate sorption isotherms of Cd(II) at three different temperatures of 293, 313 and 333 K. The sorption of Cd(II) on kaolinite/MCs increased with increasing temperature, and thermodynamic parameters (standard entropy change, enthalpy change and Gibbs free energy change) illustrated that this sorption process was spontaneous and endothermic. The sorption behaviors of Cd(II) were mainly dependent on surface properties of kaolinite/MCs and solution chemistry conditions. The sorption capacity of Cd(II) on kaolinite/MCs was lower than that on kaolinite, because iron oxide particles decreased surface charge of kaolinite leading to less sorption capacity. Due to high magnetism, kaolinite/MCs could be easily separated with an external magnetic field. Kaolinite/MCs could therefore be used as potential adsorbent for preconcentration and immobilization of Cd(II) ions from large volumes of aqueous solutions.

Adsorption of Th(IV) onto Al-pillared rectorite: Effect of pH, ionic strength, temperature, soil humic acid and fulvic acid

2008 ◽  
Vol 38 (3-4) ◽  
pp. 219-226 ◽  
Author(s):  
S.M. Yu ◽  
C.L. Chen ◽  
P.P. Chang ◽  
T.T. Wang ◽  
S.S. Lu ◽  
...  
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Fulvic Acid ◽  
Effect Of Ph ◽  
Soil Humic Acid

Adsorption properties of Na-palygorskite for Cs sequestration: Effect of pH, ionic strength, humic acid and temperature

2019 ◽  
Vol 183 ◽  
pp. 105363 ◽  
Author(s):  
Xiaoyan Wei ◽  
Yalou Sun ◽  
Duoqiang Pan ◽  
Zhiwei Niu ◽  
Zhen Xu ◽  
...  
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Adsorption Properties ◽  
Effect Of Ph
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