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KMID : 0385520100230030233
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Analytical Science & Technology
2010 Volume.23 No. 3 p.233 ~ p.239
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Fabrication of ordered porous nanocomposite materials using templating
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Lim Chang-Sung
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Abstract
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Pure macroporous silica matrix using a template of polystyrene (PS) was prepared by the sol-gel method. Macroporous Ag-SiO₂ composite materials, which were homogeneously dispersed with Ag particles in the macropores, were successfully fabricated. The pure porous silica had ordered pore sizes of 100 ㎚ and 200 ㎚, which was adjusted under consideration of the template size. The macroporous Ag-SiO₂ composite showed the ideal ordered distribution of the pore in case of the adding of 3 wt% AgNO₃ under consideration of controlling of the pore size as well as microstructural observation of AgNO₃ concentration. The macroporous Ag-SiO2 composites had ordered 100 ㎚ and 200 ㎚ pores, and the Ag particles within the matrix showed the size of 15~20 ㎚.
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KEYWORD
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Nanocomposite, porous, ordered structure, templating
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