Effect Nano of Zeolite 4A Loading on Polymer Membrane to Increase Permeability and Selectivity CO2/N2

Document Type : Research Article


Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, I.R. IRAN


The separation of CO2 gas is very important to meet environmental standards, this research aims to prepare a membrane that improves the selectivity of CO2 over N2 gas. Polymer (polyether-block amide) has properties that absorb CO2 well. Nano zeolite 4A has tiny pores proportional to the kinetic diameter of CO2. This mineral particle can act as a molecular sieve in the membrane and improve thermal and mechanical stability. By these two materials, Pebax/4A membrane was prepared. The structure of the membranes was evaluated by FESEM, BET, FT-IR, and mechanical strength analyses, and the permeability, selectivity, diffusion coefficient, and solubility coefficient of carbon dioxide were calculated in them. Finally, it was found that by adding 10% by weight of 4A, the selectivity of nanocomposite improved by %28 ​​compared to pure polymer.


Main Subjects

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