Effects of Bi_xO_yI_z Self‐Combination and Integration With Magnetic CoFe₂O₄ on the Enhanced Removal Efficiencies for Tetracycline Residues

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(12)

Published: Aug. 24, 2024

ABSTRACT The Bi x O y I z and CoFe 2 4 combination enhances photocatalytic degradation of tetracyclines (TCs). Three TC antibiotics including TC, oxytetracycline (OTC), chlortetracycline (CTC) with high concentration (50 mg L −1 ) were utilized as target pollutant. 5 7 I/Bi , its Z‐scheme, improves removal efficiency to 1.6 times that 1.4 . Ternary /CoFe (I/I/Co) composites further increase efficiency, I/I/Co‐2 achieving I/I‐2. improved performance is due an optimized microstructure, which promotes light absorption carrier transfer. nanoparticles on nanosheets create a double‐Z band structure, enhancing redox activity. Radical trapping experiments indicated the major active species (•O − OH h + in process I/I/Co‐2. Based their enhanced efficiencies for high‐concentration TCs, proper magnetic separation capacity, recycling performance, practical applications I/I/Co treat real wastewater might be implemented.

Language: Английский

Facile synthesis of Sb2WO6 with gradient oxygen vacancies for high photocatalytic activity

AIP Advances, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

The Sb2WO6 photocatalyst is synthesized by introducing oxygen vacancies through acetylene annealing. number of can be adjusted varying the annealing duration. Oxygen vacancy defects in change surface chemical properties, enhance separation carriers, broaden absorption visible light, and activate catalytic sites, resulting overall enhancement photocatalytic properties. significance pertinent mechanisms oxidation are described. Our results reveal a promising method to improve properties Sb2WO6-based materials for applications such as treatment wastewater.

Language: Английский