Spherical mesoporous silica templated with ionic liquid and cetyltrimethylammonium bromide and its conversion to hollow spheres
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Li, Shushuang
- 通讯作者：
- Guo, XW (reprint author), PB Box 39,158 Zhongshan Rd, Dalian 116012, Peoples R China.
- 合写作者：
- Liu, Min,Zhang, Anfeng,Guo, Xinwen
- 发表时间：
- 2010-03-15
- 发表刊物：
- MATERIALS LETTERS
- 收录刊物：
- SCIE
- 文献类型：
- J
- 卷号：
- 64
- 期号：
- 5
- 页面范围：
- 599-601
- ISSN号：
- 0167-577X
- 关键字：
- Ionic liquid; Worm-like mesopore; Hollow spheres; Porosity; Microstructure
- 摘要：
- Spherical mesoporous silica was synthesized using a Mixture of 1-methyl-3-octylimidazolium chloride and cetyltrimethylammonium bromide as the structure-directing agent. The obtained silica Was characterized by X-ray powder diffraction, scanning electron microscope, transmission electron microscope and (13)C NMR, spectroscopic techniques. The results show that the spherical silica possesses worm-like mesopores and larger mesopores, with the sizes about 6-50 nm. It is very interesting that the spherical mesoporous spheres were converted to hollow ones after reflux in boiling water. The treatment results in the generation of the hollow interior by dissolving the silica core. Meanwhile, the silica shell is well retained, which is confirmed by SEM and TEM images. (C) 2009 Elsevier B.V. All rights reserved.
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- 否
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