Preparation of Hydroxyaptite Nanoparticles by Using High-Gravity Reactive Precipitation Combined with Hydrothermal Method
Preparation of Hydroxyaptite Nanoparticles by Using High-Gravity Reactive Precipitation Combined with Hydrothermal Method
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DOI：
10.1021/ie1012757
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发表时间：
2010-09
影响因子：
4.2
通讯作者：
Qing Yang;Jie-xin Wang;Fen Guo;Jianfeng Chen
中科院分区：
文献类型：
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作者：
Qing Yang;Jie-xin Wang;Fen Guo;Jianfeng Chen
采用超重力反应沉淀法和水热法相结合的方法，在不使用有机改性剂的情况下成功制备了羟基磷灰石（HAP）纳米粒子。系统地考察了超重力水平、反应物总流量、反应物流量比、反应物浓度对HAP纳米粒子制备的影响。结果表明，3808 - 7774 m/s2的高重力水平、120 - 360 mL/min的总反应物流速、0.6 - 1.67的中等反应物流速比和0.04 - 0.3 mol/L的低反应物浓度有利于形成平均尺寸为55 - 110 nm且尺寸分布窄的均匀小的HAP纳米颗粒。高重力水平的增加导致初始快速和随后的平均粒径略有下降。随着反应物总流量、反应物流量比和反应物浓度的增加，平均粒径先减小后增大。一致性…
Hydroxyapatite (HAP) nanoparticles were successfully prepared without using organic modifiers by the combination of high-gravity reactive precipitation and hydrothermal method. The influences of the high-gravity level, the total reactant flow rate, the reactant flow rate ratio, and the reactant concentration on the preparation of HAP nanoparticles were systematically explored. The results showed that a high-gravity level of 3808−7774 m/s2, a total reactant flow rate of 120−360 mL/min, a moderate reactant flow rate ratio of 0.6−1.67, and a low reactant concentration of 0.04−0.3 mol/L favored the formation of uniformly small HAP nanoparticles with a mean size of 55−110 nm and a narrow size distribution. The increase of the high-gravity level led to the initial rapid and following slight decrease of the mean particle size. The mean particle size first decreased and subsequently increased with increasing the total reactant flow rate, the reactant flow rate ratio, and the reactant concentration. The uniformity...