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Synthesis of length controllable mesoporous SBA-15 rods

机译：长度可控的中孔SBA-15棒的合成

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摘要

Monodispersed SBA-15 rods with different lengths (from hexagonal platelets to short rods, and to longer rods) have been synthesized by using triblock copolymer P123 as a structure-directing agent and glyc-erol as a cosolvent. Our studies showed that glycerol is indispensable for tuning the length of SBA-15 rods. And, in the presence of glycerol, the length of these SBA-15 rods was reversely proportional to the concentration of the acid (HCl) in the synthetic mixture. Based on our characterizations (XRD, SEM, TEM, N_2-sorption, and dynamic light scattering (DLS) analyses) and the literature results, a possible glycerol-induced growth mechanism was proposed for the formation of these SBA-15 rods. Furthermore, an adsorption of lysozyme on these SBA-15 materials was investigated and the results showed that they all exhibited rapid lysozyme immobilization and high adsorption capacity (the highest up to 907 mg g~(-1) for capsulelike SBA-15 synthesized at M_(HCl) = 2.0M).
机译：通过使用三嵌段共聚物P123作为结构导向剂和甘油-甘油作为助溶剂，合成了具有不同长度的单分散SBA-15棒（从六角形血小板到短棒，再到更长的棒）。我们的研究表明，甘油对于调节SBA-15棒的长度必不可少。而且，在甘油的存在下，这些SBA-15棒的长度与合成混合物中酸（HCl）的浓度成反比。基于我们的表征（XRD，SEM，TEM，N_2吸附和动态光散射（DLS）分析）和文献结果，提出了可能的甘油诱导的生长机理来形成这些SBA-15棒。此外，对溶菌酶在这些SBA-15材料上的吸附进行了研究，结果表明它们都表现出快速的溶菌酶固定性和高的吸附能力（在M_上合成的胶囊状SBA-15的最大吸附量高达907 mg g〜（-1）。 （HCl）＝ 2.0M）。

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  • 来源
    《Materials Chemistry and Physics.》 |2009年第3期|649-655|共7页
  • 作者

    Yangang Wang; Fengyuan Zhang; Yanqin Wang; Jiawen Ren; Changlin Li; Xiaohui Liu; Yun Guo; Yanglong Guo; Guangzhong Lu;

  • 作者单位

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

    Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mesoporous SBA-15; rods; glycerol; lysozyme adsorption;

    机译：中孔SBA-15;棒甘油溶菌酶吸附;

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