Construction of Z-scheme heterojunction LaCoO3 modified ZnO for photocatalytic degradation of tetracycline under visible light irradiation
Ying Zhang, Quanying Zhang, K. Xing, Yingguan Xiao, Mingxia Zhao, Yumin Cun
Abstract
The Z-scheme LaCoO3/ZnO (LCZ) heterojunction photocatalyst was designed and prepared using the hydrothermal method. In the photocatalytic degradation of tetracycline hydrochloride, LCZ exhibited the highest photocatalytic activity with a rate constant of 0.0179 min−1,which is 3.2 and 2.3 times higher than those of pure ZnO and LaCoO3, respectively. This study presents a promising approach with potential applications in the field of photocatalytic degradation. Further theoretical studies reveal that the existence of Z-scheme heterojunction can prevent the recombination of electron-hole pairs, leading to enhanced photocatalytic performance.
Topics & Concepts
PhotocatalysisHeterojunctionDegradation (telecommunications)Tetracycline HydrochlorideHydrothermal circulationMaterials scienceTetracyclinePhotochemistryIrradiationCatalysisReaction rate constantVisible spectrumChemical engineeringNanotechnologyOptoelectronicsChemistryKineticsPhysicsComputer scienceOrganic chemistryBiochemistryEngineeringTelecommunicationsAntibioticsQuantum mechanicsNuclear physicsAdvanced Photocatalysis TechniquesCopper-based nanomaterials and applicationsGas Sensing Nanomaterials and Sensors