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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (21): 2231-2237. 上一篇    下一篇

研究论文

有机/无机复合介孔膜的合成及其生物酶吸附行为研究

朱瑾瑜，沈逸，吴龙，甘思文，陈安琪，沈祝萍，潘小庆，陈勇*   

  1. (上海应用技术学院化学与环境工程学院 上海 200235)
  • 投稿日期:2009-11-13 修回日期:2010-05-13 发布日期:2010-07-08
  • 通讯作者: 陈勇 E-mail:yongchen@sit.edu.cn
  • 基金资助:

    国家自然科学基金;教育部归国留学人员基金;上海市教委科技创新基金;上海市教委资助项目

Studies on the Synthesis of Organic/Inorganic Hybrid Mesoporous Silica Membrane and Its Adsorption Behavior of Enzyme

ZHU Jin-Yu, SHEN Yi, WU Long, GAN Si-Wen, CHEN An-Qi, SHEN Zhu-Ping, PAN Xiao-Qing, CHEN Yong   

  1. (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200235)
  • Received:2009-11-13 Revised:2010-05-13 Published:2010-07-08
  • Contact: CHEN Yong E-mail:yongchen@sit.edu.cn

PDF

1065

被引次数

14

以正硅酸四乙酯(TEOS)为硅源、三嵌段共聚物(F127)为表面活性剂, 聚碳酸酯膜为硬模板, 并采用抽滤法在聚碳酸酯膜内的亚微米级孔道中组装介孔氧化硅从而制备出有机(聚碳酸酯)/无机(介孔氧化硅)复合介孔膜. 通过扫描电镜、能量分散光谱以及透射电镜等实验表征了该有机/无机复合介孔膜的组成、结构及形貌. 研究结果表明: 通过该方法可以在聚碳酸酯膜内孔道中形成长度为9 μm、直径为200 nm的一维氧化硅棒状材料, 且该棒状材料具有无序蠕虫状和有序体心立方的混合介孔结构, 有序体心立方介孔的平均孔径约为8.5 nm. 另外, 初步考察了该复合介孔膜对生物酶的物理吸附行为, 结果表明其对肌红蛋白酶的单位吸附负载量为5.85 mg/g.

关键词: 介孔材料, 复合膜, 模板合成, 聚碳酸酯膜, 肌红蛋白酶

An organic/inorganic hybrid membrane composed of one-dimensional mesoporous silica rodlike materials inside the channels of polycarbonate filtration membrane (PC) was synthesized by using PC as the hard template and characterized by SEM, EDS and TEM. The experimental results demonstrate that the length and diameter of the one-dimensional silica rods formed inside the channels of PC are 9 μm and 200 nm, respectively. Moreover, it is found that as-synthesized silica rods in PC are mixed with the disordered warmlike and the ordered cubic mesophase structure, and the diameter of mesopores with cubic mesophase is estimated to be 8.5 nm. In addition, the adsorption behavior of myoglobin into such a membrane was investigated, and the adsorption amount was evaluated to be 5.85 mg/g.

Key words: mesoporous material, hybrid membrane, template synthesis, polycarbonate membrane, myoglobin

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