公开(公告)号：US20230338904A1

公开(公告)日：2023-10-26

申请号：US17924298

申请日：2021-05-12

Applicant: Agency for Science, Technology and Research

Inventor： Xuecheng Dong ,  Eng Toon Saw ,  Kun Liang Ang ,  Wei He

IPC: B01D71/02 ,  B01D69/10 ,  B01D67/00 ,  B01D69/04

CPC classification number: B01D71/027 ,  B01D69/108 ,  B01D67/0051 ,  B01D67/0076 ,  B01D69/04 ,  B01D2323/081 ,  B01D2323/216 ,  B01D2323/24 ,  B01D2323/48

Abstract: A method of producing a silicalite membrane, which includes heating an aqueous solution that includes a dopant precursor and structure-directing template agents to form silicalite seeds incorporated with a dopant, depositing a buffer layer on a ceramic substrate prior to depositing the silicalite seeds on the buffer layer, contacting the ceramic substrate with a solution including the silicalite seeds to form a silicalite layer from the silicalite seeds on the ceramic substrate, and removing the structure-directing template agents to form the silicalite membrane, where the silicalite layer includes silicalite crystals incorporated with a dopant and each of the silicalite crystals has a hollow structure which forms the pores of the silicalite layer. The silicalite membrane includes a ceramic substrate having a buffer layer formed thereon, and a silicalite layer formed on the buffer layer, where the silicalite layer includes silicalite crystals incorporated with a dopant.