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Targeted Functionalization of Porous Materials for Separation of Alcohol/Water Mixtures by Modular Assembly
Author(s) -
Ren CaiXia,
Ji Min,
Yao QingXia,
Cai LiXuan,
Tan Bin,
Zhang Jie
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201403822
Subject(s) - adsorption , ternary operation , modular design , methanol , porosity , alcohol , surface modification , chemistry , chemical engineering , ethanol , hydrogen , organic chemistry , materials science , chromatography , computer science , engineering , programming language , operating system
Three isoreticular hydrogen‐bonded frameworks with functionalized pore structures were constructed by a modular self‐assembly process in which a series of amino acids with various substituents serve as facile exchange subassemblies to decorate the pore wall. The ordered amino acid side‐chain groups in the pore channels play an important role in determining the adsorption behavior of the framework materials, and ensure exclusive adsorption of methanol/water over ethanol. Gas‐chromatographic separation experiments demonstrated that alcohols can be efficiently separated from ternary water/methanol/ethanol mixtures and revealed a key influence of the adsorbate–host framework interaction on the practical separation performance of mixtures.