One-step synthesis of core-shell structured mesoporous silica spheres templated by protic ionic liquid and CTAB

被引：20
作者：
Zhao, Shuo [1 ]
Zhang, Yiwei [1 ]
Zhou, Yuming [1 ]
Sheng, Xiaoli [1 ]
Zhang, Chao [1 ]
Zhang, Mingyu [1 ]
Fang, Jiasheng [1 ]
机构：
[1] Southeast Univ, Sch Chem & Chem Engn, Jiangsu Optoelect Funct Mat & Engn Lab, Nanjing 211189, Jiangsu, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 178卷
基金：
中国国家自然科学基金;
关键词：
Silica sphere; Core-shell structure; Ionic liquid; Microstructure; Porous materials; HETEROGENEOUS CATALYST SUPPORT; PORE; NANOPARTICLES; MICROSPHERES; ALKYLATION; CARBON; SIZE;
D O I：
10.1016/j.matlet.2016.04.182
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Core-shell structured mesoporous silica spheres were successfully fabricated by utilizing cetyltrimethyl ammonium bromide (CTAB) and protic ionic liquid (butylamine acetate) as the co-templates. The obtained samples were characterized by N-2 gas sorption, scanning electron microscope (SEM) and transmission electron microscopy (TEM). The results established that silica spheres possessed smaller pores in the shell and larger mesopores in the core. The formation mechanism of the silica sphere which is based on the interaction between protic ionic liquid (PIL) and CTAB is tentatively elucidated. And it is valuable to develop this facile route and the mesoporous silica spheres can be beneficial for a wide range of applications. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：35 / 38
页数：4
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