Studies on Cadmium Uptake by Hydroxyapatite

Abstract:

Article Preview

Cadmium uptake by hydroxyapatite from aqueous solution was studied in time intervals between 2 minutes and 96 hours, using different Cd2+ concentrations (21 to 768 mg L-1). The solution pH after Cd2+ uptake was assessed. Dissolution experiments at fixed pH were performed in order to evaluate the ion exchange process. Cd2+sorption by hydroxyapatite is fast and it happens simultaneously by different mechanisms. Ion exchange is the main mechanism, where mechanism Cd2+ present in aqueous solution replaces Ca2+ from hydroxyapatite structure.

Info:

Periodical:

Key Engineering Materials (Volumes 330-332)

Main Theme:

Edited by:

Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu

Pages:

123-126

DOI:

10.4028/www.scientific.net/KEM.330-332.123

Citation:

N. C.C. da Rocha et al., "Studies on Cadmium Uptake by Hydroxyapatite", Key Engineering Materials, Vols. 330-332, pp. 123-126, 2007

Online since:

February 2007

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.