双亲型二氧化钛纳米粒子的制备及高稳定非水分散性研究

doi:10.11896/cldb.21060093

材料导报

2022, Vol. 36

Issue (20): 21060093-6 https://doi.org/10.11896/cldb.21060093

无机非金属及其复合材料

双亲型二氧化钛纳米粒子的制备及高稳定非水分散性研究

何盈至, 赵谦, 王世荣, 刘红丽, 张天永, 李彬, 李祥高^*

天津大学化工学院,天津 300072

Preparation of Amphiphilic TiO₂ Nanoparticles with Highly-stabilized Non-aqueous Dispersibility

HE Yingzhi, ZHAO Qian, WANG Shirong, LIU Hongli, ZHANG Tianyong, LI Bin, LI Xianggao^*

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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摘要以钛酸丁酯(TBOT)为钛源、氨水(25%~28%)为反应介质、阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)为改性剂,采用水热法合成并改性双亲型二氧化钛纳米粒子。通过控制反应温度和反应时间,对水热合成的过程进行了探究。为防止二氧化钛粒子的团聚、提高其在有机分散介质中的荷电量及分散稳定性,在反应体系中添加不同浓度的CTAB对生成的二氧化钛纳米粒子进行表面改性。通过X射线衍射光谱(XRD)、扫描电镜(SEM)、红外光谱(FTIR)对改性后的二氧化钛纳米粒子进行了表征。对Zeta(ζ)电位、粒径及其分布、电泳淌度和分散稳定性进行了探究。结果表明,当CTAB加入浓度为0.7 mg/mL时,二氧化钛纳米粒子在Isopar L中的Zeta电位值最高为+58.89 mV,且粒子分散稳定。本研究提供了一种能够均匀分散在非水中的双亲型TiO₂纳米粒子合成方法。

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	何盈至
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	张天永
	李彬
	李祥高

关键词: 二氧化钛纳米粒子水热法 Zeta电位分散稳定性非水体系

Abstract: Amphiphilic titanium dioxide nanoparticles were synthesized and modified by a hydrothermal method using tetrabutyl titanate (TBOT) as the titanium source and cationic surfactant cetyltrimethylammonium bromide (CTAB) as the modifier in ammonia water(25%—28%) medium. The hydrothermal synthesis process was investigated by controlling the reaction temperature and time in this work. The surface of prepared TiO₂ particles was modified by cationic surfactant CTAB with varied concentrations in the reaction system in order to prevent the agglomeration of TiO₂ nanoparticles and improve their charge and dispersion stability in organic dispersion medium. The modified TiO₂ nanoparticles were fully characterized by X-ray diffraction spectroscopy(XRD), scanning electron microscope(SEM) and infrared absorption spectroscopy. The properties of Zeta (ζ) potential, particle size distribution, electrophoretic mobility and dispersion stability were explored. The results show that the Zeta potential of TiO₂ nanoparticles in Isopar L reaches as high as +58.89 mV and particles maintains high dispersion stability, when CTAB has been added at an optimal concentration of 0.7 mg/mL. This study provides an efficient way to synthesis uniformed and amphiphilic TiO₂ nanoparticles with well-dispersed property in the non-aqueous solution.

Key words: titanium dioxide nanoparticles hydrothermal method Zeta potential dispersion stability non-aqueous system

发布日期: 2022-10-26

ZTFLH:

TQ134

基金资助: 国家自然科学基金(201908161);天津市自然科学基金青年基金(20JCQNJC01220)

通讯作者: ^*lixianggao@tju.edu.cn

作者简介: 何盈至,硕士研究生,本科毕业于河南师范大学,目前就读于天津大学化工学院。研究方向为电子纸方向,研究的主要内容为用于电泳显示的粒子制备与改性以及电泳显示微胶囊的合成。
李祥高,天津大学长聘教授、博士研究生导师。在湖南大学获得学士学位,在中国科学院长春应用化学研究所获得硕士学位,在天津大学获得博士学位。从事有机光电子材料的设计、合成、性能及器件的工业化技术研究。主持过多项863计划、国家自然科学基金和天津市科技计划项目。发表研究论文110余篇,获授权国家发明专利30余项。

引用本文:

何盈至, 赵谦, 王世荣, 刘红丽, 张天永, 李彬, 李祥高. 双亲型二氧化钛纳米粒子的制备及高稳定非水分散性研究[J]. 材料导报, 2022, 36(20): 21060093-6.
HE Yingzhi, ZHAO Qian, WANG Shirong, LIU Hongli, ZHANG Tianyong, LI Bin, LI Xianggao. Preparation of Amphiphilic TiO₂ Nanoparticles with Highly-stabilized Non-aqueous Dispersibility. Materials Reports, 2022, 36(20): 21060093-6.

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http://www.mater-rep.com/CN/10.11896/cldb.21060093 或 http://www.mater-rep.com/CN/Y2022/V36/I20/21060093

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