A set of stoichiometrically mixed Li and Cs ferrites has been prepared through a simple fuel-combustion method which resulted in the formation of nano-sized spinel semiconductors. In the case of Li0.5Cs0.5FeO2, a broad excitation range reaching l&gt;500 was observed which allowed it to be a good candidate for sun light-powered catalysis. Moreover, due to the ferromagnetic properties of the studied compound, recovery and later reuse was possible using a commercial 3500 G ferrite magnet. In a built-in parabolic collector reactor, the degradation of emerging pollutant Pentoxifylline (PXF) has been achieved using direct solar light and degradation kinetics follow a first-order reaction rate with a maximum degradation of 94.91% at mildly acidic pH. Product analysis by HPLC-MS showed the effective oxidation of PXF and along with DFT modeling, a degradation pathway is proposed based on ring-opening and formation of harmless aliphatic organic acids. Additionally, toxicity studies have been performed in bacteria and yeast where high loadings of Cs showed to be harmful to Staphylococcus aureus (MIC≥4.0 mg/mL); Salmonella typhi (MIC≥8.0 mg/mL), and Candida albicans (MIC≥10.0 mg/mL) whereas high Li loadings did not affect cellular development. The presented work presents a fully green method from synthesis to application with effectiveness and robustness in the degradation of pollutants using alternative energy sources.

Sunlight powered oxidation of pentoxifylline by green synthesized LiCs ferrites

ACS Fall 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.