期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 147, 期 1, 页码 281-285出版社
ELSEVIER
DOI: 10.1016/j.micromeso.2011.06.029
关键词
Green chemistry; Mesoporous silica; Amphiphilic dendritic polyamidoamine; Sustainable chemistry
类别
资金
- Natural Science Foundation of China [50903070]
- Zhejiang Provincial Natural Science Foundation of China [Y4090363, Y4090502]
- Science and Technology Innovative Research Team of Zhejiang Province [2009R50010]
- Qianjiang talent project of Zhejiang Province [2010R10018]
The synthesis, characterization, and application of mesoporous silicas have attracted a lot of attention for over two decades, which stems from their fascinating structures, formation mechanisms and prospects of their applications. Various methods have been developed for the synthesis of these silicas with a tunable pore diameter and a narrow pore size distribution. In this paper, mesoporous silica materials with controllable pore diameters (3-9 nm), narrow pore size distributions, high surface area (>700 m(2) g(-1)) and pore volume (>1 cm(3) g(-1)) were prepared by a green template, amphiphilic dendritic polyamidoamine. The resulting silica materials were characterized by H-1, C-13 NMR spectroscopy; thermogravimetic analysis: nitrogen adsorption: transmission electron microscope. It was shown that the template could be completely removed and recycled from the silica in an environmentally friendly way by means of a simple water extraction. Furthermore, it was shown that the pore diameter of these materials could be controlled by dendritic polyamidoamine with different generations and functional groups. Meanwhile, the porous framework showed strong thermal stability. Thus, a new environmentally friendly pathway for the controllable synthesis of this fascinating silicas has been proposed. (C) 2011 Elsevier Inc. All rights reserved.
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