Synthesis and Characterisation of ETS-10/Acetate-based Ionic Liquid/Chitosan Mixed Matrix Membranes for CO2/N2 Permeation

Membranes

Clara Casado-Coterillo²  Mar໚ del Mar López-Guerrero¹ 

[1] Department of Analytical Chemistry, Faculty of Sciences, Universidad de Málaga, 29071 Málaga, Spain; E-Mail:;Department of Chemical and Biomolecular Engineering, Universidad de Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain; E-Mail:

关键词: mixed matrix membranes;    chitosan;    microporous titanosilicate ETS-10;    1-ethyl-3-methyl-imidazolium acetate ionic liquid;    membrane characterisation;   

DOI  :  10.3390/membranes4020287

来源: mdpi

【 摘 要 】

Mixed matrix membranes (MMMs) were prepared by incorporating organic surfactant-free hydrothermally synthesised ETS-10 and 1-ethyl-3-methylimidazolium acetate ionic liquid (IL) to chitosan (CS) polymer matrix. The membrane material characteristics and permselectivity performance of the two-component membranes were compared with the three-component membrane and the pure CS membrane. The addition of IL increased CO₂ solubility of the polymer, and, thus, the CO₂ affinity was maintained for the MMMs, which can be correlated with the crystallinity, measured by FT-IR, and void fraction calculations from differences between theoretical and experimental densities. The mechanical resistance was enhanced by the ETS-10 nanoparticles, and flexibility decreased in the two-component ETS-10/CS MMMs, but the flexibility imparted by the IL remained in three-component ETS-10/IL/CS MMMs. The results of this work provide insight into another way of facing the adhesion challenge in MMMs and obtain CO₂ selective MMMs from renewable or green chemistry materials.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.