The mechanisms of Ni2+ ions sorption by AIPO4

被引：3
|
作者：
Mustafa, S [1 ]
Javid, M [1 ]
Zaman, MI [1 ]
Gul, R [1 ]
Ali, H [1 ]
机构：
[1] Univ Peshawar, Natl Ctr Excellence Phys Chem, Peshawar 25120, Pakistan
来源：
ENVIRONMENTAL TECHNOLOGY | 2003年 / 24卷 / 10期
关键词：
sorption; ion exchange; dissolution; precipitation;
D O I：
10.1080/09593330309385673
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Sorption of Ni2+ ions by AlPO4 is studied as a function of concentrations and temperature at PH 7. Potentiometric titration, dissolution and FTIR studies are employed to determine the mechanism of the Process of the uptake of Ni2+ ions which is found to be both the ion exchange and the surface precipitation of the corresponding metal phosphates. Freundlich equation is found applicable to the sorption data, and is employed to evaluate the thermodynamic parameters DeltaHdegrees and DeltaSdegrees.
引用
收藏
页码：1303 / 1313
页数：11
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