Fly ash incorporated polyurethane electrospun membrane for CO₂ absorption

In this study, we reported a composite electrospun membrane fabricated by impregnating FAP into polyurethane fibers for the adsorption of CO₂ from the atmosphere. The samples were prepared 0, 40, 60 wt% of FAP with respect of PU and evaluated on a reduced scale (1/10) of actual product. The membrane has been characterized as a porous and high surface area substrate having effective adsorbent capacity. The composite electrospun membrane was characterized using various analytical techniques, including field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and FT-IR spectroscopy. The results show that PU/FAP composite mat containing 60 wt% FAP can decrease CO₂ level by 32 % in half an hour compared to the pristine PU. The absorption of CO₂ was attributed to the presence of FAP into PU fiber. Present technology utilizes FAP to fabricate an eco-friendly membranes and could be applied for air filtration from.