In this study, a Phloroglucinol-based porous organic polymer (Ph-POP) was successfully created through a catalyst-free Schiff base condensation process involving 4,4'-oxydianiline and a novel trisaldehyde in dimethylformamide (DMF) under solvothermal conditions. The structural properties of Ph-POP were characterized using different methods including Fourier-transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy- dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM) and Brunauer-Emmett-Teller (BET) surface area analysis. This porous polymer contains a high heteroatom (N and O) content, providing accessible basic sites for CO2 adsorption. This porous organic polymer showed a CO2 adsorption capacity of 54.18 cm3 g-1 at 273 K and 39.49 cm3 g-1 at 298 K under 1 bar pressure, respectively. This research aims to introduce a porous organic polymer as an efficient adsorbent for capturing gas pollutants and their potential incorporation in nanocomposites and membranes. This could offer a promising solution to combat atmospheric pollutions and global warming.
