材料科学  >> Vol. 2 No. 4 (October 2012)

模板诱导/均相沉淀法对HAP形貌的控制及其机理研究
Morphology Control and Mechanism of Hydroxyapatite Synthesized by a Template-Mediated Homogenous Precipitation Route

DOI: 10.12677/MS.2012.24027, PDF, HTML, 下载: 3,423  浏览: 10,280  国家科技经费支持

作者: 陈亚男*, 黄志良*, 田兴*, 陈力, 吴涵奇*, 池汝安:武汉工程大学材料科学与工程学院

关键词: HAP晶体形貌模板诱导/均相沉淀法界面能 Hydroxyapatite; Template-Mediated Homogenous Precipitation; Crystal Morphology; Interface Energy

摘要: 通过添加不同的有机模板剂、改变同种模板剂浓度,用模板诱导/均相沉淀法合成了具有不同形貌的羟基磷灰石(HAP),并用XRDSEM对样品进行了表征。测试了不同反应溶液的表面张力,结合晶体生长理论初步解释了有机模板剂控制HAP形貌的机理。结果表明:模板剂种类的变化及其在反应溶液中浓度的变化,可以改变反应体系的表面能γlg,影响不同成核晶面的界面能γsl从而改变HAP最终的生成形貌。当γlg小于28 mN/m时,产物均为板片晶组成的球花;当γlg~(28 mN/m, 48 mN/m)时,为晶须和片晶球花组成的混合形态;当γlg大于48 mN/m时,产物均为HAP晶须。
Abstract: Different morphologies hydroxyapatites (HAPs) were synthesized in a controllable way by a template- mediated homogeneous precipitation route. The morphologies and compositions of synthesized HAPs were charact- erized by SEM and XRD, and the surface tensions of different reaction solutions were tested. The template-mediated mechanism for the morphology control according to the crystal growth theory was explained. The results suggested that with the changes of template agent types and the concentrations of reaction solution, the surface energy γlg of precursor liquid can be changed. Then the interface energy γsl of the nucleation at the different crystal plane could be affected. The morphologies of synthesized HAPs were controlled by the precursor liquid surface tension γlg and the crystal interface energy γsl. When γlg was controlled under 28 mN/m, the morphology of HAP was controlled to become nanoflower. When γlg was controlled between 28 mN/m and 48 mN/m, the HAPs had the mixed morphologies with whisker and nanoflower. While γlg was controlled above 48 mN/m, the HAPs was controlled to became whisker.

文章引用: 陈亚男, 黄志良, 田兴, 陈力, 吴涵奇, 池汝安. 模板诱导/均相沉淀法对HAP形貌的控制及其机理研究[J]. 材料科学, 2012, 2(4): 149-155. http://dx.doi.org/10.12677/MS.2012.24027

参考文献

[1] C. M. Ho, W. Y. Yu and C. M. Che. Ruthenium nanoparticles supported on hydroxyapatite as an efficient and recyclable cata- lyst for cis-dihydroxylation and oxidative cleavage of alkenes. Angew. Angewandte Chemie International Edition England, 2004, 43: 3303-3307.
[2] S. Sebti, R. Tahir, R. Nazih,et al. Hydroxyapatite as a new solid support for the Knoevenagel reaction in heterogeneous media without solvent. Applied Catalysis, 2002, 228: 155-159.
[3] E. M. Rivera, M. Araiza, W. Brostow, et al. Synthesis of hydro- xyapatite from eggshells. Materials Letters, 1999, 41(3): 128- 134.
[4] Y. Xu, D. Wang, L. Yang, et al. Hydrothermal conversion of coral into hydroxyapatite. Materials Characterization, 2001, 47(2): 83-87.
[5] L. E. L. Hammari, A. Laghzizil, P. Barboux, et al. Retention of flu- oride ions from aqueous solution using porous hydroxyapatite: Structure and conduction properties. Journal of Hazardous Ma- terials, 2004, 114(1-3): 41-44.
[6] Y. Liu, H. Xu, Z. Huang, et al. Factors affecting the adsorption of Aqueous Cadmium (Ⅱ) on Hy droxyapaties. Acta Petrologica et Mineralogica, 2001, 20(4): 583-586.
[7] M. Zahouily, Y. Abrouki, B. Bahlaouan, et al. Hydroxyapatite: New efficient catalyst for the Michael addition. Catalysis Com- munications, 2003, 4(10): 521-524.
[8] H. Nishikawa. A high active type of hydroxyapatite for photo- catalytic decomposition of dimethyl sulfide under UV irradiation. Journal of Molecular Catalysis A: Chemical, 2004, 207(2): 149- 153.
[9] S. Tanaka, N. Shiba and M. Senna. Change in the morphology of hydroxyapatite nanocrystals in the presence of bioaffinitive poly- meric species under the application of electrical field. Science and Technology of Advanced Materials, 2006, 7(2): 226-228.
[10] P. Honarmandi. Fabrication of single-crystal nanospherical hydro- xyapatite powder for biomedical applications. Proceedings of ASME Global Congress, NEMB, 2010: 239-240.
[11] P. Wang, C. Li, H. Gong, et al. Effects of synthesis conditions on the morphology of hydroxyapatite nanoparticles produced by wet chemical process. Powder Technology, 2010, 203(2): 315-321.
[12] X. Lu, Y. Leng. Theoretical analysis of calcium phosphate precipitation in simulated body fluid. Biomaterials, 2005, 26(10): 1097-1108.
[13] H. R. Ramay, M. Zhang. Preparation of porous hydroxyapatite scaffolds by combination of the gel-casting and polymer sponge methods. Biomaterials, 2003, 24(19): 3293-3302.
[14] A. J. V. Golumbfskie, S. A. Pande and K. Chakraborty. Simu- lation of biomimetic recognition between polymers and surfaces. Proceedings of the National Academy of Sciences, 1999, 96: 11707.
[15] Z. Huang, L. Zhang, Y. Liu, et al. Controlled growth of the hy- droxyapatite (HAP) crystal morphology by template-mediated/ homogeneous-precipitation. Journal of Synthetic Crystals, 2006, 35(2): 261-264.
[16] C. Chen, W. Yuan, J. Li, et al. Characterization of carbonated hydroxyapatite whiskers prepared by hydrothermal synthesis. CrystEngCommunity, 2011, 13: 1632-1637.
[17] Q. He, Z. Huang. Controlled synthesis and morphological evolution of dendritic porous microspheres of calcium phosphates. Journal of Porous Materials, 2009, 16(6): 683-689.
[18] X. Cheng, Q. He, J. Li, et al. Self-assembled growth and pore size control of the bubble-template porous carbonated hydro- xyapatite microsphere. Crystal Growth & Design, 2010, 10(3): 1180-1188.
[19] R. Kern, I. Sunagawa. The equilibrium form of a crystal, morphology of crystals. Tokyo: Terra, 1987: 79.