Studies on Cadmium Uptake by Hydroxyapatite-Reference-Cited by-同舟云学术

Studies on Cadmium Uptake by Hydroxyapatite

Published:2007-02 Issue: Volume:330-332 Page:123-126
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

da Rocha Nilce C.C.¹,Mavropoulos Elena²,Prado da Silva Marcelo Henrique³,Campos R. C. de⁴,Rossi Antonella M.⁵

Affiliation:

1. UFRJ

2. CBPF - Centro Brasileiro de Pesquisas Físicas

3. Instituto Militar de Enegenharia - IME

4. Pontifícia Universidade Católica do Rio de Janeiro

5. Centro Brasileiro de Pesquisas Fisicas

Abstract

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.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.330-332.123.pdf

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