| dc.description.abstract | Pharmaceuticals and personal care products (PPCPs) have become one of the emerging pollutants in recent years. Because PPCP are difficult to degrade, people have gradually aware of their harmful effects, leading to the need for the development of effective techniques to remove PPCPs. Hydroxyl radicals(·OH) are highly reactive and destructive oxidants capable of oxidizing most organic compounds into simpler molecules. Therefore, in this study, electrospinning technology was employed to prepare composite titanium dioxide (TiO2)/carbon nanotubes (CNT)/carbon nanofibers (CF) materials.
According to the results, the fabricated CNT-CF, TiO2-CF, and TiO2-CNT-CF electrodes demonstrated the ability to remove acetaminophen and aspirin from the solution. In the acetaminophen solution, the removal effiency of CNT-CF, TiO2 CF, and TiO2-CNT-CF electrodes were 16.67%, 7.03%, and 19.08%, respectively. The removal of aspirin by CNT-CF, TiO2‑CF, and TiO2-CNT-CF electrodes were 15.77%, 0.58%, and 9.42%, respectively. Since CNT-CF possessed the highest specific surface area, it could remove more molecules, primarily through electrosorption. Additionally, due to the potential catalytic properties of CNT, they could enhance the removal efficiency. Electrospinning of TiO2 onto carbon fibers covered the pores of CF, resulting in a lower specific surface area compared to CF. The analysis showed that TiO2-CF can still generate hydroxyl radicals, indicating that the electrode still possessed the catalytic capability to interact with organic substances. Despite the lower specific surface area of TiO2-CNT-CF electrode, due to the generation of hydroxyl radicals by TiO2 and enhanced conductivity by CNT, TiO2-CNT-CF exhibited better organic pollutant removal ability compared to TiO2-CF. | en_US |