Silver as solid-state electron mediator in MoS2/Ag–AgVO3 Z-Scheme heterostructures for photocatalytic H2 generation

摘要: Abstract Heterostructured photocatalysts have attracted enoromous research interest in H2 generation through water splitting because of highly efficient interfacial charge-transfer characteristics nanoarchitectures. Herein, Ag nanoparticles decorated AgVO3 nanorods and MoS2 nanosheets are combined to fabricate MoS2/Ag–AgVO3 heterostructures,in which NPs act as a solid-state electron mediator. Owing unique nanoarchitecture, exhibited the best (reaches 38.6 mmol g−1 2 h) whichis four times twenty higher than Ag–AgVO3 bare under visible light respectively. Transient photocurrent Nyquist spectra reveal that enhanced photocatalytic performance is mainly attributed its effective carrier separation transfer surfaces. Moreover, band structures materials been calculated from Mott-Schottky study, demonstrated Z-scheme mechanism. This study describes promising approach for harvesting solar energy generate by designing an mediated heterostuctures.