Development of metal-organic framework-based separation membranes

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820385
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: NOBUO Hara 独立行政法人産業技術総合研究所, 化学プロセス研究部門, 主任研究員 (70613545)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 気体分離膜 / 金属有機構造体 / 対向拡散法 / 多孔質物質 / 選択透過 / MOF

Outline of Final Research Achievements

Metal-organic frameworks (MOFs) have attracted tremendous attentions as new materials for separation membranes. In this study, we developed uniquely micro-structured MOF-based molecular sieve membranes by a counter-diffusion method using porous α-alumina hollow substrate. We successively applied the counter-diffusion method for the preparation of zeolitic imidazolate frameworks-8 (ZIF-8) based membranes. Permeation properties were studied using the single-component gas permeation properties, and ideal propylene/propane separation factor of up to 135 was achieved. We clarified the contribution of diffusive separation for propylene/propane with ZIF-8 membranes based on the characterization of diffusion and solution properties from the membrane permeation measurements. The preparation, structural characteristics, and gas permeation properties of the ZIF-8 membranes prepared by the counter-diffusion method are thoroughly studied.

Free Research Field

膜分離工学