PRODUCTION METHOD OF ZEOLITE FILM IN WHICH ONE AXIS IS COMPLETELY VERTICALLY ORIENTED, USING STEAM UNDER SYNTHETIC GEL-FREE CONDITION

摘要

Provided are a method for preparing a thin film or a thick film, comprising: a first step of providing a porous substrate capable of supplying silicon; a second step of applying zeolite seed crystals onto the surface of the porous substrate; a third step of coating the seed crystals-applied porous substrate with an aqueous solution containing a structure directing agent; and a fourth step of forming and growing a film from the seed crystals using a secondary growth method above a temperature at which moisture inside the seed crystals-applied porous substrate prepared in the third step can form steam, and a film prepared by the method. According to the present invention, the preparation method of a film comprises simple manufacturing processes, and thus has high reproducibility and high throughput. Since a synthetic gel is not used and a solution is used, it is possible to reduce the unnecessary consumption of materials, environmental pollution is decreased, a synthetic gel is not wasted, and drying and washing a film is unnecessary.