粒径大小可调控的介孔二氧化硅的制备
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- 英文论文题名：Fabrication of Tunable Mesoporous Silica Nanospheres
- 论文作者：任义仙 ; 李治凯 ; 周国伟
- 英文论文作者：Yi-xian Ren ; Zhi-kai Li ; Guo-wei Zhou ; Key Laboratory of Fine Chemicals in Universities of Shandong ; School of Chemistry and Pharmaceutical Engineering ; Qilu University of Technology
- 年：2016
- 作者机构：齐鲁工业大学化学与制药工程学院山东省高校轻工精细化学品重点实验室;
- 论文关键词：介孔二氧化硅 ; 粒径大小 ; 可调控
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：TQ127.2;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：211k
- 原文格式：D
- 会议级别：全国
摘要
目前,形貌、结构和孔径可控成为二氧化硅纳米材料制备的挑战之一,介孔SiO_2纳米材料作为一种重要的载体材料,具有选择性高、吸附量大、吸附快等特点~[1,2]。本文利用十六烷基三甲基溴化铵-乙醇-接枝两亲性聚合物的二氧化硅-水形成的体系中以TEOS作为硅源进行水解。用不同量的十六烷基三甲基溴化铵(CTAB)可成功制备出粒径大小可调的介孔二氧化硅纳米粒子。HRTEM图(Fig.1)可以观察到随十六烷基三甲基溴化铵用量的增加介孔二氧化硅的粒子大小可以从90 nm到20 nm之间变化。这种粒径大小可调的介孔SiO_2纳米材料在生物载体方面有潜在的应用价值。
Mesoporous silica nanoparticles(MSNs) with special morphologies and well-defined pore structures are one of the attracting considerable challenges,especially the MSNs.MSNs exhibit widespread potential applications in supporting materials because of their high selectivity,great absorbing capacity and high adsorption speed.In this work,we reported the fabrication of mesoporous silica nanospheres using cetyltrimethylammonium bromide-ethanol-grafted amphiphilic polymer of silica-water,tetraethoxysilane as precuosor.HRTEM images show that the particle size of mesoporous silica can be tuned from 20 to 90 nm by changing the quality of CTAB(Fig.1).The tunable paticle size of MSNs have promising applications in supporting materials.
Mesoporous silica nanoparticles(MSNs) with special morphologies and well-defined pore structures are one of the attracting considerable challenges,especially the MSNs.MSNs exhibit widespread potential applications in supporting materials because of their high selectivity,great absorbing capacity and high adsorption speed.In this work,we reported the fabrication of mesoporous silica nanospheres using cetyltrimethylammonium bromide-ethanol-grafted amphiphilic polymer of silica-water,tetraethoxysilane as precuosor.HRTEM images show that the particle size of mesoporous silica can be tuned from 20 to 90 nm by changing the quality of CTAB(Fig.1).The tunable paticle size of MSNs have promising applications in supporting materials.
引文
[1]C.T.Kresge,M.E.Leonowicz,W.J.Roth,J.C.Vartuli,J.S.Beck.nature.1992,359(6397):710-712..
[2]P.Koley,A.Pramanik.Soft Matter.2012,8(19):5364
[2]P.Koley,A.Pramanik.Soft Matter.2012,8(19):5364