高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (12): 2192.

• 研究简报 • 上一篇    下一篇

表层纳米氧化锆包覆硅球色谱载体的制备和表征

敦惠娟1,2, 宋秀芹2, 魏雨2, 李永民1, 陈立仁1   

  1. 1. 中国科学院兰州化学物理研究所, 兰州 730000;
    2. 河北师范大学化学学院, 石家庄 050016
  • 收稿日期:2002-12-10 出版日期:2003-12-24 发布日期:2003-12-24
  • 通讯作者: 陈立仁(1937年出生),男,研究员,博士生导师,从事色谱分离及药物分析研究.E-mail:chenlr@ns.lzb.ac.cn E-mail:chenlr@ns.lzb.ac.cn
  • 基金资助:

    中国科学院“百人计划”资助;科学技术部基础研究快速反应资助;河北省自然科学基金(批准号:503167)资助

Preparation and Characterization of Zirconia Nanoparticle Multilayers on Micrometer-sized Silica Particle for HPLC Support

DUN Hui-Juan1,2, SONG Xiu-Qin2, WEI Yu2, LI Yong-Min1, CHEN Li-Ren1   

  1. 1. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. College of Chemistry, Hebei Normal University, Shijiazhuang 050016, China
  • Received:2002-12-10 Online:2003-12-24 Published:2003-12-24

关键词: 新型色谱载体, 分子自组装, ZrO2/SiO2

Abstract: The uniform zirconia nanoparticle multilayers/micrometer-sized silica particle(ZrO2/SiO2) was prepared for HPLC support material by layer-by-layer(LbL)self-assembly technique. XRD pattern shows that the crystalline of nanometer particles on the surface is pure tetragonal zirconia, with a diameter of 13.9 nm. The specific surface area, pore volume and pore size of the material are 172.53m2/g, 0.3784cm3/g, and 8.5 nm, respectively. The novel support not only has the mechanical strength and chemical stability of zirconia, but also has the good chromatographic features such as larger surface area, better permeability, less background pressure.

Key words: Novel HPLC support, Molecular self-assembly, ZrO2/SiO2

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