A Cu medium designed Z-scheme ZnO–Cu–CdS heterojunction photocatalyst for stable and excellent H<sub>2</sub> evolution, methylene blue degradation, and CO<sub>2</sub> reduction
Irshad Ahmad, Shazia Shukrullah, Muhammad Yasin Naz, Haq Nawaz Bhatti
Abstract
. The improved photocatalytic response of the ZnO-Cu-CdS catalyst is assigned to the delayed recombination of photoexcited charge carriers through a Z-scheme charge transport mode, maintaining the photocarriers with strong redox potentials and the dual role of Cu to serve as a conductive bridge to accelerate the charge transfer rate and enhance the light absorption due to its SPR phenomenon. This research offers a promising strategy for developing binary/ternary Z-scheme heterojunction photocatalytic systems for different photocatalytic applications.
Topics & Concepts
Methylene blueDegradation (telecommunications)HeterojunctionReduction (mathematics)PhotocatalysisMaterials scienceChemical engineeringNuclear chemistryPhotochemistryOptoelectronicsChemistryCatalysisComputer scienceTelecommunicationsOrganic chemistryMathematicsEngineeringGeometryAdvanced Photocatalysis TechniquesCopper-based nanomaterials and applicationsNanocluster Synthesis and Applications