Catalytic properties of TiO₂ nanofibers in CO₂ conversion: a comparative analysis of polymer matrices

The quest for efficient and sustainable methods to mitigate carbon dioxide (CO₂) emissions is a pressing global challenge. This study delves into the crucial role of polymers in tailoring the performance of titanium dioxide (TiO₂) nanofibers for CO₂ conversion reactions. By systematically comparing the influence of different polymers, specifically polyvinyl pyrrolidone (PVP) and polyvinylidene fluoride (PVDF), on the CO₂ conversion activity of TiO₂-NFs, we shed light on the remarkable potential of polymeric selection to fine-tune catalyst properties. The paper uses advanced experimental techniques to analyze the structural and morphological properties of PVP-TiO₂-NFs and PVDF- TiO₂-NFs demonstrating their various morphologies. The investigation involves SEM, XRD, BET, Raman, and UV-Vis spectroscopy to better understand the charge separation and recombination processes involved in both materials’ CO₂ conversion. The results show considerable differences, the choice of polymer significantly impacts the CO₂ conversion performance of TiO₂-NFs. PVP-based NFs exhibit enhanced surface area and porosity, resulting in superior catalytic activity, while PVDF-based NFs demonstrate remarkable stability. These findings pave the way for innovative approaches to tackle climate change and develop a more environmentally friendly future by advancing energy-efficient and long-lasting photocatalytic technology.