摘要
以Ca(NO3)2和(NH4)2HPO4为原料,应用超声化学法制备得到了尺寸约20nm×120nm、分散性良好的针状羟基磷灰石(HAp)纳米粉体。对比研究了超声化学法与传统的化学沉淀法对HAp粉体的结晶性能、Ca/P摩尔比和产率的影响。研究表明,与传统的化学沉淀法相比,超声化学法可以在较短的时间内显著地提高纳米HAp的合成效率、结晶度、Ca/P摩尔比和产率。
Nano needlelike hydroxyapatite（ HAp） powders with a mean size of 20nm×120nm are prepared by an ultrasonic precipitation method, using Ca（NOR ）2 and （NH4）2 HPO4 as reacting agents, deionized water as solvent and ammonia as pH adj usting agent. The influences of ultrasonic treatment on the crystallinity, Ca/P molar ratio, yield and crystal morphology of HAp are investigated by comparing with the conventional preparation method under the same factors. It is found that HAp monophase could be prepared from the reaction system sonicated for 2 hours. Compared to the conventional process, the sonochemistry method could effectively increase the synthetic efficiency, crystallinity, Ca/P molar ratio and yield of HAp nano powders in a relatively short reaction Deriod.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2006年第F11期182-184,共3页
Materials Reports
基金
上海市科学技术委员会基金资助(05nm05042
05DJ14005)
关键词
羟基磷灰石
纳米
超声化学
沉淀
hydroxyapatite, nanometer, sonochemistry, precipitation
作者简介
林开利：男，1975年生，助理研究员
成荣明：通讯联系人，男，教授,E-mail：rmcheng@phy．ecnu．edu．cn
