| abstract |
The present invention relates to a method for preparing a zeolite core/silica zeolite shell composite, which involves adding a zeolite seed crystal to a gel solution containing: a silicon-source compound; a structure directing agent; and a fluorine anion-source compound, and crystalizing the resultant substance so as to grow a silica zeolite shell having a crystal structure coherent with the zeolite seed crystal. The present invention further relates to a zeolite core/silica zeolite shell composite prepared using the method, and to a usage of the zeolite core/silica zeolite shell composite. |