An interface-directed coassembly approach to synthesize uniform large-pore mesoporous silica spheres

Wang, Minghong, Sun, Zhenkun, Yue, Qin, Yang, Jie, Wang, Xiqing, Deng, Yonghui, Yu, Chengzhong and Zhao, Dongyuan (2014) An interface-directed coassembly approach to synthesize uniform large-pore mesoporous silica spheres. Journal of the American Chemical Society, 136 5: 1884-1892. doi:10.1021/ja4099356

Author Wang, Minghong
Sun, Zhenkun
Yue, Qin
Yang, Jie
Wang, Xiqing
Deng, Yonghui
Yu, Chengzhong
Zhao, Dongyuan
Title An interface-directed coassembly approach to synthesize uniform large-pore mesoporous silica spheres
Journal name Journal of the American Chemical Society   Check publisher's open access policy
ISSN 0002-7863
Publication date 2014-02-05
Year available 2014
Sub-type Article (original research)
DOI 10.1021/ja4099356
Open Access Status DOI
Volume 136
Issue 5
Start page 1884
End page 1892
Total pages 9
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Subject 1600 Chemistry
1503 Business and Management
1303 Specialist Studies in Education
1505 Marketing
Abstract A facile and controllable interface-directed coassembly (IDCA) approach is developed for the first time to synthesize uniform discrete mesoporous silica particles with a large pore size (ca. 8 nm) by using 3-dimensional macroporous carbon (3DOMC) as the nanoreactor for the confined coassembly of template molecules and silica source. By controlling the amount of the precursor solution and using Pluronic templates with different compositions, we can synthesize mesoporous silica particles with diverse morphologies (spheres, hollow spheres, and hemispheres) and different mesostructure (e.g., 2-D hexagonal and 3D face centered cubic symmetry), high surface area of about 790 m2/g, and large pore volume (0.98 cm3/g). The particle size can be tunable from submicrometer to micrometer regimes by changing the macropore diameter of 3DOMC. Importantly, this synthesis concept can be extended to fabricate multifunctional mesoporous composite spheres with a magnetic core and a mesoporous silica shell, large saturated magnetization (23.5 emu/g), and high surface area (280 m2/g). With the use of the magnetic mesoporous silica spheres as a magnetically recyclable absorbent, a fast and efficient removal of microcystin from water is achieved, and they can be recycled for 10 times without a significant decrease of removal efficiency for microcystin.
Keyword Opal Photonic Crystals
Enzyme Immobilization
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 2013CB934104
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
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