Extended Interfacial Charge Transference in CoFeO/WO Nanocomposites for the Photocatalytic Degradation of Tetracycline Antibiotics.

Molecules

Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali 671000, China.

Published: September 2024

The large-scale utilization of antibiotics has opened a separate chapter of pollution with the generation of reactive drug-resistant bacteria. To deal with this, in this work, different mass ratios of CoFeO/WO nanocomposites were prepared following an in situ growth method using the precursors of WO and CoFeO. The structure, morphology, and optical properties of the nanocomposite photocatalysts were scrutinized by X-ray diffraction (XRD), UV-visible diffuse reflectance spectra (UV-Vis DRS), photoluminescence spectrum (PL), etc. The experimental data signified that the loading of CoFeO obviously changed the optical properties of WO. The photocatalytic performance of CoFeO/WO composites was investigated by considering tetracycline as a potential pollutant. The outcome of the analyzed data exposed that the CoFeO/WO composite with a mass ratio of 5% had the best degradation performance for tetracycline eradication under the solar light, and a degradation efficiency of 77% was achieved in 20 min. The monitored degradation efficiency of the optimized photocatalyst was 45% higher compared with the degradation efficiency of 32% for pure WO. Capturing experiments and tests revealed that hydroxyl radical (·OH) and hole (h) were the primary eradicators of the target pollutant. This study demonstrates that a proper mass of CoFeO can significantly push WO for enhanced eradication of waterborne pollutants.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11478208PMC
http://dx.doi.org/10.3390/molecules29194561DOI Listing

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