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[1]姚兴星,周志航,李延报.醇的性质对溶剂热法制备CaHPO4形貌的影响[J].南京工业大学学报(自然科学版),2014,36(03):57-61.[doi:10.3969/j.issn.1671-7627.2014.03.011]
 YAO Xingxing,ZHOU Zhihang,LI Yanbao.Effects of alcohol-water solution on the morphology of CaHPO4 synthesized by solvothermal method[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(03):57-61.[doi:10.3969/j.issn.1671-7627.2014.03.011]
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醇的性质对溶剂热法制备CaHPO4形貌的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年03期
页码:
57-61
栏目:
出版日期:
2014-05-20

文章信息/Info

Title:
Effects of alcohol-water solution on the morphology of CaHPO4 synthesized by solvothermal method
文章编号:
1671-7627(2014)03-0057-05
作者:
姚兴星周志航李延报
南京工业大学 材料科学与工程学院,江苏 南京 210009
Author(s):
YAO XingxingZHOU ZhihangLI Yanbao
College of Materials Science and Engineering,Nanjing Tech University, Nanjing 210009, China
关键词:
溶剂热法 CaHPO4 形貌控制
Keywords:
solvothermal treatment calcium hydrogen phosphates(CaHPO4) morphology control alcohol
分类号:
O629.73;O631.1
DOI:
10.3969/j.issn.1671-7627.2014.03.011
文献标志码:
A
摘要:
采用溶剂热法在醇-水二元溶剂中合成CaHPO4。利用扫描电子显微镜(SEM)、X线衍射仪(XRD)等分析技术表征CaHPO4的形貌和晶相。结果表明,与纯水溶剂相比,醇-水二元溶剂对产物的晶相和形貌有较大的影响:晶相由磷酸八钙(OCP)变为水合磷酸氢钙(DCPD)和无水磷酸氢钙(DCPA)的混合物; 形貌由多孔微球状变为非球状结构。以醇-水二元溶剂合成CaHPO4时,随着醇分子链的碳链长度的增加,CaHPO4的形貌由长饼状变为六边形和固体小颗粒的结构,最终变为块状和刺状结构。随着醇羟基个数的增加有利于CaHPO4的形貌从块体向刺状球转变。这些形貌的差异主要是由于DCPD的(020)晶面和(121)晶面以及DCPA的(112)晶面和(220)晶面的生长速率不一致所导致的。
Abstract:
Calcium hydrogen phosphates(CaHPO4)were synthesized by solvothermal treatment. The morphology and the phase were characterized by scanning electron microscopy(SEM)and X-ray diffraction(XRD). Results showed that the mixture solvent of alcohol and water had a great effect on the morphology and the phase of calcium phosphates compared with water as the solvent: the phase transformed from octacalcium phosphate(OCP)phase to the mixture phases of dicalsium phosphate dehydrate(DCPD)and dicalcuim phosphate anhydrons(DCPA); the morphology changed from porous spheres to aspherical structure. In addition, the morphology of calcium hydrogen phosphates transformed from long cake-like structure to the mixture of hexagonal structure and particle, finally to the mixture of bulk and burr with the increase of the carbon chain in alcohol. Increasing the number of —OH in alcohol contributed to the morphology of spheres of burr. Different morphologies were caused by the different growth rates of the crystal faces of DCPD(020), DCPD(121), DCPA(112)and DCPA(220).

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备注/Memo

备注/Memo:
收稿日期:2013-10-17
基金项目:江苏省自然科学基金(BK2011076)
作者简介:姚兴星(1987—),男,江苏高邮人,硕士生,主要研究方向为生物医用材料; 李延报(联系人),副教授,E-mail:ybli@njtech.edu.cn..
更新日期/Last Update: 2014-05-20