化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (6) : 164-167.

科学研究

SiO₂空心球的制备与表面形貌调控

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作者信息 +

Synthesis and surface morphology control of hollow silica sphere

Du Kuishan^1,2, Yang Bingquan^2,3, Song Kai², Wang Jian¹

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文章历史 +

Received		Published
2018-02-05		2019-06-20
Issue Date	Revised Date
2019-07-05	2018-02-05

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摘要

以聚苯乙烯(PS)微球为模板,通过水解正硅酸乙酯来包裹PS微球,制备了PS/SiO₂核壳结构微球,然后通过高温煅烧得到SiO₂空心球。利用纳米粒度仪、扫描电子显微镜、透射电子显微镜分析SiO₂空心球的粒径和表面形貌。采用控制变量法分别研究了PS微球表面电荷、pH、水和正硅酸乙酯的用量对SiO₂空心球表面形貌的影响。实验证明,以表面带正电荷的PS微球为模板,反应体系pH=11.0,正硅酸乙酯注入速度为100μL/min时,制备的SiO₂空心球表面最光滑。

Abstract

Polystyrene/silica core-shell microspheres were fabricated for polystyrene microsphere as template and tetraethoxysilane as silica source through sol-gel method,and hollow silica spheres were obtained by calcining at high temperature.The size and surface morphology of spheres were analyzed by Zeta potential analyzer,SEM and TEM.The surface morphology of spheres was regulated by the surface charge of PS microspheres,pH value,the amounts of water and TEOS.The experiment proved that the outer silica layer appeared smooth when the surface positively charged PS microspheres was used as template,the reaction system pH=11.0 and the injection velocity of TEOS was 100μL/min.

关键词

聚苯乙烯微球 / 空心球 / 核壳结构 / 表面形貌 / 调控

Key words

PS microsphere / hollow sphere / core-shell structure / surface morphology / regulation

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SiO₂空心球的制备与表面形貌调控[J]. 化工新型材料, 2019, 47(6): 164-167 DOI:

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Meier W.Polymer nanocapsules[J].Chemical Society Reviews,2000,29(5):295-303.
[2] McDonald C J,Devon M J.Hollow latex particles:synthesis and applications[J].Advances in Colloid and Interface Science,2002,99(3):181-213.
[3] 董殿权,房超.PMMA纳米微球的制备与表征[J].化工新型材料,2017,45(9):68-70.
[4] Tian H,Saunders M,Dodd A,et al.Triconstituent co-assembly synthesis of N,S-doped carbon-silica nanospheres with smooth and rough surfaces[J].Journal of Materials Chemistry A,2016,4(10):3721-3727.
[5] Zhu Y,Shi J,Shen W,et al.Stimuli-responsive controlled drug release from a hollow mesoporous silica sphere/polyelectrolyte multilayer core-shell structure[J].Angewandte Chemie,2005,117(32):5213-5217.
[6] Hu H,Zhou H,Du J,et al.Biocompatiable hollow silica microspheres as novel ultrasound contrast agents for in vivo imaging[J].Journal of Materials Chemistry,2011,21(18):6576-6583.
[7] Ma Y,Qi L,Ma J,et al.Large-pore mesoporous silica spheres:synthesis and application in HPLC[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2003,229(1):1-8.
[8] Bae E,Chah S,Yi J.Preparation and characterization of ceramic hollow microspheres for heavy metal ion removal in wastewater[J].Journal of Colloid and Interface Science,2000,230(2):367-376.
[9] Zhong K,Khorshid M,Li J,et al.Fabrication of optomicrofluidics for real-time bioassays based on hollow sphere colloidal photonic crystals with wettability patterns[J].Journal of Materials Chemistry C,2016,4(33):7853-7858.
[10] Kamp M,Hermes M,Van Kats C M,et al.Selective depletion interactions in mixtures of rough and smooth silica spheres[J].Langmuir,2016,32(5):1233-1240.
[11] Yin M,Liu S.Preparation of ZnO hollow spheres with different surface roughness and their enhanced gas sensing property[J].Sensors and Actuators B:Chemical,2014,197:58-65.
[12] Carcouët C C M C,Esteves A,Hendrix M M R M,et al.Fine-tuning of superhydrophobicity based on monolayers of well-defined raspberry nanoparticles with variable dual-roughness size and ratio[J].Advanced Functional Materials,2014,24(36):5745-5752.
[13] Liu Z F,Ding T,Zhang G,et al.Ternary inverse opal system for convenient and reversible photonic bandgap tuning[J].Langmuir,2008,24(18):10519-1052.