Fabrication and characterization of porous polyetherimide/montmorillonite hollow fiber mixed matrix membranes for CO2 absorption via membrane contactor

摘要: Abstract Asymmetric PEI hollow fiber mixed matrix membranes (MMMs) with improved structure and wetting resistance were fabricated via wet phase inversion method. The effects of incorporating hydrophobic MMT into polymer in different loadings on the membrane properties investigated. characterized terms scanning electron microscopy (SEM) energy-dispersive X-ray spectroscopy (EDX), gas permeation test, hydrophobicity, mechanical stability. All possessed finger-like structures differing skin layer thickness which increased clay loading. results revealed that MMMs have significantly smaller pore size, higher porosity, LEPw stability than plain membrane. further by CO 2 absorption test contactor system using distilled water as absorbent pure solute gas. showed performance addition nano-clay. containing 1 wt% recorded highest flux 2.35 × 10 −3  mol m −2  s −1 at liquid velocity 3 m s , almost 135% same velocity. Comparatively, MMM was superior to several in-house made commercial membranes.