无机材料学报

• 研究论文 • 上一篇    下一篇

Sol-Gel法合成HAP的结晶特征及其对F-离子吸附性能研究

黄志良1,2; 刘羽2; 王大伟1; 张术根1; 陈露军2   

  1. 1. 中南大学资环院, 长沙 410083; 2. 武汉化工学院材料系, 武汉 430073
  • 收稿日期:2000-07-21 修回日期:2000-08-23 出版日期:2001-07-20 网络出版日期:2001-07-20

Properties of Crystallizing and Absorbing F- Ion of HAP Synthesized by Sol-Gel Process

HUANG Zhi-Liang1,2; LIU Yu2; WANG Da-Wei1; ZHANG Shu-Gen1; CHEN Lu-Jun 2   

  1. 1.Institute of Resource and Environment; South Central University; Changsha 410083; China; 2. Department of Material Engineering; Wuhan Institute of Chemical Technology; Wuhan 430073; China
  • Received:2000-07-21 Revised:2000-08-23 Published:2001-07-20 Online:2001-07-20

摘要: 用sol-gel法合成了具有纳米级尺寸的HAP;采用XRD,IR,BET比表面积测定,静、动态吸附等方法研究了不同Ca/P摩尔比和煅烧温度合成的HAP的比表面积、结晶度、晶粒尺寸、晶格缺陷度、热稳定性、平衡吸氟量;探讨了吸氟机理和行为.结果表明:sol-gel法合成的HAP在常温、常压、不调pH的操作条件下,有较大的吸氟能力,且无二次污染,可作为绿色环境材料.

关键词: sol-gel法, 羟基磷灰石, 氟离子, 阴离子交换吸附

Abstract: Hydroxyapatite (HAP) was prepared by a sol-gel process. XRD, IR, BET measurement and static -dynamic absorption
test were used to study the absorbing mechanism and action, to analyze the specific surface area, degree of crystallization and lattice defect,
crystalline size, thermal stabilization and equilibrium capacities of absorbing F- ion of the HAP synthesized by changing the molar ratio
of Ca to P and calcination temperature. Test results indicate that the HAP can be used as green environment protection material, as the
result of its strong ability of absorbing F- ion under the operating conditions of common temperature and common pressure and non-secondary pollution.

Key words: sol-gel process, hydroxyapatite (HAP), F- ion, anion exchange absorbing

中图分类号: