| 摘要 |
A silica nanofiber/metal oxide nanocrystal composite is produced by a method including associating a polymer having a linear polyethyleneimine skeleton in a water-based medium in the presence of ice, adding alkoxysilane to the water-based medium obtained in the above step to form a composite nanofiber including the associate and silica that covers the associate, while the fiber spontaneously forms a disc-shaped network structure, a step of depositing a metal oxide on a surface of the fiber by mixing the disc-shaped structure obtained in the above step with a hydrolyzable metal compound, and a step of calcining the disc-shaped. structure obtained in the step above to form a silica nanofiber through removal of the polymer in the fiber, to convert the metal oxide into a nanocrystal, and to bond the nanocrystal to the fiber. When zinc oxide is used as the metal oxide, the composite functions as a luminous body.
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