摘要
本文以Triton X-100/C10H21OH/H2O体系层状溶致液晶为模板,Ca（NO3）2和（NH4）2HPO4为反应物,在一定的pH条件下,通过三元相图确定了层状液晶单相区域,并合成了羟基磷灰石（HA）纳米颗粒。用傅立叶红外光谱（FTIR）,X射线衍射（XRD）和透射电子显微镜（TEM）对产物进行了表征。并考察了不同助表面活性剂浓度和不同表面活性剂浓度对产物的形貌和尺寸的影响。结果表明所制备的HA纳米颗粒平均直径为8-10nm、长度在100nm左右,呈针状。助表面活性剂浓度对HA形貌及尺寸影响不大,但是在一定范围内改变表面活性剂浓度可以起到调控HA纳米颗粒形貌和尺寸的作用。
The single–phase region of lamellar liquid crystal was determined after the partial phase diagram of Triton X-100/C10H21OH/H2O system was completed.At a certain pH condition,hydroxyapatite（HA） nanoparticles were synthesized by using TritonX-100/C10H21OH/H2O layered system of liquid crystal as the template,Ca（NO3）2 and（NH4）2HPO4 as reactants.XRD,FTIR and TEM were used to characterize the properties of HA nanoparticles.The effects of different concentration of cosurfactant and surfactant on the morphology and dimension of HA were investigated.The results showed that the prepared HA nanoparticles were needle-shaped crystals with the diameters of 8～10nm and length of about 100nm.Cosurfactant concentration had little effect on the morphology and size of HA and the change of surfactant concentration in a certain range could regulate morphology and dimension of HA nanoparticles.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2010年第9期1147-1152,共6页
Chemical Research and Application
基金
四川省应用基础研究项目(2008JY0123)资助
关键词
层状液晶
纳米羟基磷灰石
模板
lamellar liquid crystal
hydroxyapatite
template
