Controlled Preparation and Formation Mechanism of Hydroxyapatite Nanoparticles under Different Hydrothermal Conditions  

作　　者：Shanyi Guang Fuyou Ke Yuhua Shen 

机构地区：[1]School of Chemistry and Chemical Engineering,Anhui University [2]College of Chemistry,Chemical Engineering and Biotechnology,Donghua University [3]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials & College of Material Science and Engineering,Donghua University

出　　处：《Journal of Materials Science & Technology》2015年第8期852-856,共5页材料科学技术（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51372004,21171034 and21271040);the Shanghai Municipal Natural Science Foundation for Youths(No.12ZR144100);"Chen Guang"project(No.12CG37)supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation

摘　　要：Hydroxyapatite （HAP） nanoparticles with uniform morphologies and controllable size were synthesized successfully by molecular template hydrothermal approach. The organic alcohols including ethanol, glycol, glycerol and butanol were used as templates to regulate the nucleation and crystal growth. The synthesized powders were characterized by X-ray diffraction, Fourier infrared spectrum and trans- mission electron microscopy. The results showed that the obtained HAP particles were uniform rod-like crystals, and the template molecular structures had significant effect on the morphology and size of HAP particles. The template molecules with longer hydrophobic groups resulted in longer particle length and larger aspect ratio. Compared with the concentration of template molecules, the template molecular structure showed larger influence on controlling the HAP morphology and size. Furthermore, the for- mation mechanism of these rod-like HAP particles prepared by alkyl alcohol templates was discussed. Moreover, hydrothermal treatment temperature and time could be also used for controlled preparation of HAP nanoparticles.Hydroxyapatite （HAP） nanoparticles with uniform morphologies and controllable size were synthesized successfully by molecular template hydrothermal approach. The organic alcohols including ethanol, glycol, glycerol and butanol were used as templates to regulate the nucleation and crystal growth. The synthesized powders were characterized by X-ray diffraction, Fourier infrared spectrum and trans- mission electron microscopy. The results showed that the obtained HAP particles were uniform rod-like crystals, and the template molecular structures had significant effect on the morphology and size of HAP particles. The template molecules with longer hydrophobic groups resulted in longer particle length and larger aspect ratio. Compared with the concentration of template molecules, the template molecular structure showed larger influence on controlling the HAP morphology and size. Furthermore, the for- mation mechanism of these rod-like HAP particles prepared by alkyl alcohol templates was discussed. Moreover, hydrothermal treatment temperature and time could be also used for controlled preparation of HAP nanoparticles.

关 键 词：Hydroxyapatite nanoparticle Alcohols template Controlled preparation Hydrothermal synthesis 

分 类 号：TB383.1[一般工业技术—材料科学与工程]