Patent ID: 7632771
Filing Date: 2009-12-15
Classification: B01D,B82Y,C01B,H01L

Abstract:
1. A method for increasing a hydrophobicity of a zeolite film, comprising the steps of: providing a support and a zeolite synthesis composition, the zeolite synthesis composition comprising a silica source and an organic template; forming a zeolite film on the support, wherein the zeolite film is derived from the zeolite synthesis composition and wherein total removal of the organic template is avoided; and thereafter subjecting said zeolite film to, substantially simultaneously, ultraviolet irradiation and thermal activation, wherein the ultraviolet radiation has a wavelength of from 170 nm to 250 nm, and wherein organic template is present when the zeolite film is subjected to ultraviolet radiation, whereby Si—OH bonds are broken and whereby Si—O—Si, Si—CH