张 娜^1,2， 钟 莉^1*， 段东平^1,2*

1. 中国科学院绿色过程与工程重点实验室，北京 1001902. 中国科学院大学化学工程学院，北京 100049

收稿日期:2019-01-24修回日期:2019-04-15出版日期:2019-12-22发布日期:2019-12-22
通讯作者:段东平

基金资助:高纯氢氧化锶生产新工艺及产业化;基于含氟烟气净化的介孔氧化铝的可控合成基础研究

Regulation of properties and characterization of strontium titanate nanoparticles synthesis by oleic acid-assisted hydrothermal process

Na ZHANG^1,2, Li ZHONG^1*, Dongping DUAN^1,2*

1. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China2. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2019-01-24Revised:2019-04-15Online:2019-12-22Published:2019-12-22


Supported by:;Fundamental Research on the Controllable Synthesis of Mesoporous Alumina for the Purification of Fluorine Flue Gas

摘要/Abstract

摘要： 采用油酸辅助一步水热法，以廉价易得的锐钛矿型TiO2为钛源、Sr(OH)2?8H2O为锶源合成SrTiO3纳米颗粒，通过XRD, TEM和SEM研究了SrTiO3纳米颗粒的形貌，考察了反应时间、Sr/Ti摩尔比和油酸浓度对SrTiO3纳米颗粒性能的影响，以所制SrTiO3为催化剂降解亚甲基蓝考察其光催化性能。结果表明，钙钛矿型立方相SrTiO3纳米颗粒具有均匀的尺寸和规则的形貌。实验范围内，随反应时间和Sr/Ti摩尔比增加，SrTiO3纳米粒子的晶粒尺寸呈增加趋势；随油酸浓度增加，SrTiO3颗粒粒度呈下降趋势。添加油酸可调控制备出具有规则形貌的钙钛矿型立方相结构的SrTiO3纳米颗粒；Sr/Ti摩尔比为0.75时，产品纯度高、结晶度好。油酸、反应时间和Sr/Ti摩尔比对SrTiO3纳米粒子微观结构的影响可分别用颗粒间作用力、奥斯特瓦尔德熟化和晶体成核理论解释。

引用本文

张娜 钟莉 段东平. 油酸辅助水热合成纳米钛酸锶的性能调控与表征[J]. 过程工程学报, 2019, 19(6): 1212-1219.
Na ZHANG Li ZHONG Dongping DUAN. Regulation of properties and characterization of strontium titanate nanoparticles synthesis by oleic acid-assisted hydrothermal process[J]. Chin. J. Process Eng., 2019, 19(6): 1212-1219.

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