Sorption of divalent metal ions on CrPO4

被引：28

作者：

Mustafa, S ^{[1
]}

Murtaza, S ^{[1
]}

Naeem, A ^{[1
]}

Farina, K ^{[1
]}

机构：

[1] Univ Peshawar, Natl Ctr Excellence Phys Chem, Peshawar, Pakistan

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 283卷 / 02期

关键词：

ion exchange; sorption; metal phosphates; CrPO4; metal ions;

D O I：

10.1016/j.jcis.2004.09.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The divalent metal ion sorption (Cu2+, Cd2+, Ni2+, and Pb2+) on chromium phosphate (CrPO4) was studied as a function of pH, temperature, and concentration of metal ions. The sorption of metal ions is observed to increase with the increase in pH, temperature, and concentration of metal ions in Solution. The mechanism of sorption is found to be the exchange of the hydrolyzed metal cations with the protons from solid at high temperature. The sorption at low temperature is found to be accompanied by the precipitation of the corresponding metal phosphates such as Pb-3(PO4)(2). (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：287 / 293

页数：7