Ion-exchange properties of strontium hydroxyapatite under acidic conditions

被引：8
|
作者：
Sugiyama, S [1 ]
Nishioka, H
Moriga, T
Hayashi, H
Moffat, JB
机构：
[1] Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Tokushima 770, Japan
[2] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada
[3] Univ Waterloo, Guelph Waterloo Ctr Grad Work Chem, Waterloo, ON N2L 3G1, Canada
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 1998年 / 33卷 / 13期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1080/01496399808545042
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The ion exchange of strontium hydroxyapatite (SrHAp) with Pb2+ has been investigated under acidic conditions at 293 K. The addition of various acids to the exchanging solution enhanced the exchange capacity in the order HCl > HBr > HF > HNO3 > no acid, corresponding to the formation of halogen apatites with the former three acids or hydrogen phosphate with HNO3. Since the ion-exchange capacity of SrHAp under nonacidic conditions is higher than that of chlorapatite, the aforementioned observations can be attributed to the participation of the protons introduced by the acids.
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页码：1999 / 2007
页数：9
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