Synthesis and Characterization of Hollow Mesoporous Silica Spheres Using Negative-Charged Polystyrene Particles as Templates

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• 作者：Yang Chen ; Yayun Wang
• 关键词：Silica sphere ; Hollow structure ; Mesoporous shell ; Negative ; charged polystyrene particle ; Template
• 刊名：Journal of Inorganic and Organometallic Polymers and Materials
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：380-384
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Inorganic Chemistry; Organic Chemistry; Polymer Sciences;
• 出版者：Springer US
• ISSN：1574-1451
• 卷排序：27

文摘

This paper reports the synthesis of hollow mesoporous silica (HMS) spheres using negative-charged polystyrene particles (ca. 200 nm in diameter) and cetyltrimethylammonium bromide as dual templates. The obtained HMS spheres were characterized by powder X-ray diffraction, high resolution transmission electron microscopy, and nitrogen adsorption–desorption analysis. The shell thickness of HMS spheres could be adjusted in a range of 30–75 nm by changing the concentration of precursor. The HMS spheres (ca. 60–65 nm in shell thickness) presented a high surface area of 1496 m2/g, and the total pore volume and average pore diameter were found to be 0.97 cm3/g and 2.9 nm, respectively.