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

Journal of Inorganic Materials

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

HUANG Zhi-Liang^1,2; LIU Yu²; WANG Da-Wei¹; ZHANG Shu-Gen¹; CHEN Lu-Jun ²

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

Abstract

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

CLC Number:

HUANG Zhi-Liang,LIU Yu,WANG Da-Wei,ZHANG Shu-Gen,CHEN Lu-Jun. Properties of Crystallizing and Absorbing F^- Ion of HAP Synthesized by Sol-Gel Process[J]. Journal of Inorganic Materials.

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

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