磷酸铝对Co2+离子的吸附机制

Sorption mechanism of Co2+ ions by AlPO4.

作者信息

Mustafa S, Javid M, Gul R, Murtaza S

机构信息

National Centre for Excellence in Physical Chemistry, Peshawar University, Peshawar-25120, Pakistan.

出版信息

Environ Technol. 2002 Oct;23(10):1173-8. doi: 10.1080/09593332308618335.

DOI:10.1080/09593332308618335

PMID:12465843

Abstract

Sorption studies were conducted for Co2+ ions on AlPO4 at different concentrations and temperatures. Sorption of Co2+ was found to increase with increase in concentration and temperature. To determine the mechanism of the sorption process, dissolution of AlPO4 in the presence of Co2+ ions and desorption studies were performed which indicated the mechanism of sorption to be the ion exchange followed by precipitation. FTIR studies were also employed to confirm the proposed mechanism.

摘要

在不同浓度和温度下对磷酸铝吸附Co2+离子进行了研究。发现Co2+的吸附量随浓度和温度的升高而增加。为了确定吸附过程的机理，进行了磷酸铝在Co2+离子存在下的溶解及解吸研究，结果表明吸附机理为离子交换随后沉淀。还采用傅里叶变换红外光谱（FTIR）研究来证实所提出的机理。