In:
Catalysis Science & Technology, Royal Society of Chemistry (RSC), Vol. 13, No. 18 ( 2023), p. 5449-5455
Abstract:
Achieving enhanced charge separation efficiency and accelerated surface reaction kinetics are crucial for high-performance photocatalytic hydrogen evolution. Herein, a spatially separated, dual co-catalyst-modified photocatalytic system Pt/TiO 2 /In 2 S 3 /PdS (Pt/TO/IS/PdS) was successfully built by the step-by-step decoration of Pt and PdS nanoparticles (NPs) on the inner and outer shells of a hierarchical hollow TiO 2 /In 2 S 3 (TO/IS) heterojunction, respectively. Experimental results demonstrate that the spatial separation of reduction and oxidation co-catalysts accelerates the surface redox reaction and, more importantly, promotes photo-induced charges to flow in opposite directions. By combining the virtues of TiO 2 /In 2 S 3 heterojunction shell, spatially separated dual co-catalyst and extended light absorption, the Pt/TO/IS/PdS catalyst exhibits a remarkable photocatalytic H 2 production performance under visible light irradiation, which is 36.0 times enhancement than that of the TiO 2 /In 2 S 3 heterojunction. This study demonstrates that the strategy of combining heterojunctions and spatially separated co-catalysts has great reference significance for developing a highly efficient photocatalytic system.
Type of Medium:
Online Resource
ISSN:
2044-4753
,
2044-4761
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2595090-3
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