功能性孔洞材料在氣體分離之應用

分離技術在化學、石化、和製藥業中對於純化產物有著不可或缺的地位，大量生產時的成本和其純化步驟息息相關，例如:溶劑萃取、蒸餾、吸附、和再結晶…等方法。而含羰基的多孔材料是少數被證明可有效捕捉二氧化碳的材料之一，所以，我們從修飾羰官能基之多孔材料(多孔分子晶體PMCs和金屬有機骨架(MOFs)著手，延伸至分離二氧化碳/氮氣之應用。而變壓吸附(PSA)技術是一種廣泛使用的氣體分離技術，常用於研究羰官能基之多孔材料的氣體分離性能，根據分子特性和吸附劑材料與混合氣體之親和力，藉由改變壓力來純化混合氣體，我們利用PNCs做一系列氣體分離之實驗，確定在這些孔洞材料上富有極性的羰官能基，可以展現出色的分子分離性質，基於此概念，我們合成並充分的鑑定一系列的新功能金屬有機骨架.

關鍵字

孔洞材料；金屬有機骨架；氣體吸附；氣體分離；變壓式氣體吸附

並列摘要

Separation technology plays a significant role in the production of pure compounds in the chemical, petrochemical and pharmaceutical industries. A large amount of the production costs is associated with purification steps such as solvent extraction, distillation, adsorption, and crystallization processes. Porous materials containing carbonyl groups have been proved to be among a few systems that can efficiently capture CO2. Herein, we propose to study novel carbonyl-functionalized porous materials (porous molecular crystals (PMCs) and metal-organic frameworks (MOFs)) for CO2 capture, CO2/N2 separation, and hydrocarbon separations. Pressure swing adsorption (PSA) technique is used to investigate the gas separation properties of carbonyl-functionalized porous materials. PSA is a widely used process for the purification of a gas mixture under pressure swing according to the molecular characteristics and affinity to the adsorbent material. The polar carbonyl groups of these porous materials can provide a unique platform for host-guest interactions, which lead to superior molecular separation performance. Based on this concept, a series of new functional MOFs based on bis(1,2,3-triazole)-p-benzoquinone and 2,5-difluoro-3,6-dihydroxyterephthalic acid is synthesized and fully characterized.