Fabrication of ZnMnO@ZnInS ball-in-ball hollow microspheres as efficient photocatalysts for hydrogen evolution
Semiconductor photocatalytic hydrogen evolution (PHE) has emerged as a feasible solution to address the problem of energy shortage. Hydrogen energy can thus be developed by creating a photocatalyst with a high activity for producing hydrogen and an effective charge transfer route. This study describ...
Gespeichert in:
Veröffentlicht in: | Inorganic chemistry frontiers 2024-09, Vol.11 (19), p.6455-6466 |
---|---|
Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Semiconductor photocatalytic hydrogen evolution (PHE) has emerged as a feasible solution to address the problem of energy shortage. Hydrogen energy can thus be developed by creating a photocatalyst with a high activity for producing hydrogen and an effective charge transfer route. This study describes the preparation of innovative hierarchical ZnMn
2
O
4
@ZnIn
2
S
4
(ZMOZ) ball-in-ball hollow microspheres as photocatalysts using a straightforward solvothermal technique. Remarkably, the PHE rate of 10% ZMOZ can reach 11.12 mmol g
−1
h
−1
, which is roughly 4.9 times greater than that of pure ZnIn
2
S
4
(ZIS). Aside from the benefits of building heterojunctions, the regulation of the morphology, such as hollow structures, can provide more exposed active sites and enhance the light-absorption capability by internal multilight scattering. Density functional theory (DFT) calculations, X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) spectroscopy and time-resolved PL (TRPL) spectroscopy demonstrated that the charge separation efficiency in the composite was notably improved. This work offers a cost-effective and environmentally friendly method for utilizing visible light for an effective PHE.
This study describes the preparation of ZnMn
2
O
4
@ZnIn
2
S
4
ball-in-ball hollow microspheres as photocatalysts. Remarkably, the PHE rate of 10% ZnMn
2
O
4
@ZnIn
2
S
4
can reach 11.12 mmol g
−1
h
−1
, roughly 4.9 times greater than that of pure ZnIn
2
S
4
. |
---|---|
ISSN: | 2052-1553 |
DOI: | 10.1039/d4qi01447b |