形貌可控的介孔二氧化硅纳米材料的制备
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- 英文论文题名：Fabrication of morphology-controllable mesoporous silica nanomaterials
- 论文作者：王丹丹 ; 孟庆霞 ; 高婷婷 ; 周国伟
- 英文论文作者：Dandan Wang ; Qingxia Meng ; Tingting Gao ; Guowei 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：径向放射状 ; 有序介孔孔道 ; 空心球 ; 褶皱假丝酵母脂肪酶
- 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：198k
- 原文格式：D
- 会议级别：全国
摘要
介孔二氧化硅纳米材料因具有较大的比表面积和孔体积、可控的粒径、有序的介孔结构等优点,可广泛应用于催化、生物分子的分离、医学成像~[1,2]。本研究在十六烷基三甲基溴化铵-乙醇-环己烷-水形成的水包油微乳液体系中成功制备了具有不同表面形貌、粒径及内部结构的介孔二氧化硅纳米球。从TEM图(Fig.1a)可以观察到粒径为370-450 nm的含径向放射状介孔孔道结构的纳米球,这些放射状孔道大大增加了其比表面积和孔体积。从Fig.1b可以观察到粒径均匀的(260 nm)二氧化硅空心球,壳厚度约为15 nm。所制备的二氧化硅纳米材料用作固定褶皱假丝酵母脂肪酶的载体,并进行了活性测试。
Mesoporous silica nanomaterials(MSNs) are widely applied in catalysts,biomolucule separation and medical imaging owing to their large surface area and pore volume,controllable particle size,and ordered mesoporous structures~([1,2]).In this study,mesoporous silica nanospheres with adjustable surface morphology,size,and interior structures were fabricated successfully in cetyltrimethylammonium bromide-ethanol-cyclohexane-water oil-in-water microemulsion system.TEM image(Fig.1a) shows that the spherical particles with size distribution ranging from 370 to 450 nm were obtained.The significant feature of the porous spheres is the radially oriented mesochannels and these mesochannels cause increased surface area and pore volume significantly.The uniform-sized hollow silica nanospheres(260 nm) with an average shell thickness of about 15 nm were obtained,as illustrated in Fig.1b.The as-prepared mesoporous silica nanomaterials were then employed as carriers for Candida rugosa lipase.The enzymatic activity of all samples were performed.
Mesoporous silica nanomaterials(MSNs) are widely applied in catalysts,biomolucule separation and medical imaging owing to their large surface area and pore volume,controllable particle size,and ordered mesoporous structures~([1,2]).In this study,mesoporous silica nanospheres with adjustable surface morphology,size,and interior structures were fabricated successfully in cetyltrimethylammonium bromide-ethanol-cyclohexane-water oil-in-water microemulsion system.TEM image(Fig.1a) shows that the spherical particles with size distribution ranging from 370 to 450 nm were obtained.The significant feature of the porous spheres is the radially oriented mesochannels and these mesochannels cause increased surface area and pore volume significantly.The uniform-sized hollow silica nanospheres(260 nm) with an average shell thickness of about 15 nm were obtained,as illustrated in Fig.1b.The as-prepared mesoporous silica nanomaterials were then employed as carriers for Candida rugosa lipase.The enzymatic activity of all samples were performed.
引文
[1]Chen,Y.;Wang,Q,H.;Wang,T,M.Nanoscale.2015,7:16442-16450.
[2]Peng,J.;Liu,J.;Yang,Y,C.J.Mater.Chem.A.2014,2:8118-8125.
[2]Peng,J.;Liu,J.;Yang,Y,C.J.Mater.Chem.A.2014,2:8118-8125.