Sorption and ion-exchange properties of barium hydroxyapatite with divalent cations

被引：49

作者：

Sugiyama, S ^{[1
]}

Matsumoto, H

Hayashi, H

Moffat, JB

机构：

[1] Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Tokushima 7708506, Japan

[2] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

[3] Univ Waterloo, Guelph Waterloo Ctr Grad Work Chem & Biochem, Waterloo, ON N2L 3G1, Canada

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2000年 / 169卷 / 1-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

sorption; ion exchange; barium hydroxyapatite;

D O I：

10.1016/S0927-7757(00)00412-X

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 properties of barium hydroxyapatite (BaKAp) for ion exchange with Pb2+, Cu2+, Zn2+, Cd2+ and Co2+ have been investigated, with particular emphasis on the former two cations. Under similar conditions the exchange capacities followed the order Cu2+ > Pb2+ > Zn2+ > Cd2+ > Co2+. After exchange with Pb2+, lead hydroxyapatite was identified in the solid but with Cu2+ no copper analogue of BaHAp was found, although Ba-3(PO4)(2) was formed. With solutions containing both Pb2+ and Cu2+ only the former exchanged into BaHAp. With HCl in the exchanging solutions the capacities of BaHAp for both Pb2+ and Cu2+ were enhanced, while copper hydroxyapatite was not found in the solid. Discussions of possible mechanisms are included. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：17 / 26

页数：10

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