The development of novel tailor-made photocatalytic reactor for sulfamethoxazole removal: Understanding mechanism and degradation pathway
[ 1 ] Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] pracownik
2023
artykuł naukowy
angielski
- Titania
- Carbon fiber
- Sulfamethoxazole
- Photo-oxidation
- Reusability
- Degradation pathway
EN Over the past decade, the presence of pharmaceuticals in aquatic environments has emerged as a new environmental hazard. This study aims to address this problem by developing a tailor-made photocatalytic system to degrade the antibiotic sulfamethoxazole. To accomplish this, titanium dioxide was loaded onto carbon fiber via a rapid, one-step microwave process. The impact of changes in carbon felt thickness on the synthesized photocatalysts’ morphology, surface area development, and optical properties was investigated. The carbon fiber decorated with TiO2 formed a unique photocatalyst that could be easily separated after the photo-oxidation process. It was discovered that TiO2 loading on carbon fiber could shift the excitation spectrum towards the blue region. A spectrally matched LED solution was designed to leverage this widened absorption spectrum. Photocatalytic experiments revealed that TiO2-loaded carbon fibers exhibit a high sulfamethoxazole removal efficiency, even after five successive catalytic cycles. The high photocatalytic efficiency was due to the separation of photoinduced charge carriers and the matching of the LED light source to the photocatalyst’s optical properties. Ultimately, the study demonstrated that combining TiO2-loaded carbon fiber photocatalysts with a spectra-matching tailor-made LED source resulted in a low electrical energy per order (EEO).
03.08.2023
145168-1 - 145168-13
Article number: 145168
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15,1 [Lista 2022]