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Enhancing Carbon Capture Efficiency of Zeolite-embedded Polyether Sulfone Mixed-matrix Membranes via Annealing Process by Aamir Sohail; Muhammad Sarfraz; Sidra Nawaz; Zaman Tahir is a Environmental Science article available to read on EtoBox.

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Current work was motivated by rapid advancement in membrane technology for application of gas separation, that resulted in the formation of mixed-matrix membranes (MMMs) with higher selectivity and permeability. MMMs are one way to get above the Robeson upper bound of selectivity against permeability for gaseous separation while retaining the advantages of solution processing. Numerous inorganic materials like zeolites, carbon nanotubes, or metal-organic frameworks can behave as molecular sieves, but they are fragile and difficult to fabricate as standalone membranes. This problem might be solved by embedding them into a more durable polymeric membrane matrix. In this work, symmetric mixed-matrix membranes fabricated through solution casting technique were employed with zeolite A-3 dispersed in a polyether sulfone (PES) matrix. Impacts of zeolite loading and annealing temperatures on thermal stability, morphology and carbon capture performance of prepared membranes were systematically investigated. Carbon capture proficiency of fabricated membranes was assessed in terms of CO2 permeability and CO2/N2 selectivity. In contrast to pristine PES membrane, incorporation of optimal 30 wt%

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Author

Aamir Sohail; Muhammad Sarfraz; Sidra Nawaz; Zaman Tahir

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)