New polysulfone microcapsules containing metal oxides and ([BMIM][NTf2]) ionic liquid for CO2 capture

CO2 emission from flue gas is one of the main sources global warming. The development new materials with enhanced adsorption crucial to foster sustainable development. In this work, 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][NTf2]) ionic liquid (IL) was synthesized and combined metal oxides (Fe2O3, CuO TiO2) for further encapsulation in polysulfone (PSF) using emulsification method. Computational study “ab initio” method also performed. Scanning electron microscopy evidenced uniform formation IL/metal oxide encapsulated microcapsule. Transmission (TEM) indicates microcapsules around 1.0 ?m containing a dense core (IL/metal oxide) when Fe2O3 by polymer shell presenting better sorption compared microcapsule TiO2. Thermogravimetric analysis (TGA) presents thermal behavior indicating lower degradation temperature neat PSF. IL capacity determined acetone immersion test. Results indicated 40 % capacity. Differential scanning calorimetry shows complete disappearance (at -3.14 ?) characteristic peak after test confirming removal residue wt.% calculated TGA air atmosphere used determine amount incorporated microcapsules. an enhancement 47 as neat-PSF. Here we reported effective solvent-free adsorbent capture fostering industrial application.