In:
Small, Wiley, Vol. 16, No. 42 ( 2020-10)
Abstract:
The relatively high recombination rate of charges remains the most critical limiting factor for solar‐driven water splitting for hydrogen generation. Herein, a tandem 0D/2D/2D NbS 2 quantum dot/Nb 2 O 5 nanosheet/g‐C 3 N 4 flake (NSNOCN) system is designed. Owing to the unique spatial‐arrangement and elaborate morphology of 0D NbS 2 , 2D Nb 2 O 5 , and 2D g‐C 3 N 4 in the newly designed NSNOCN, plenty of spatial charge–transfer cascades from g‐C 3 N 4 to NbS 2 via Nb 2 O 5 are formed to accelerate separation and transfer of charges significantly, thus contributing to a high photocatalytic H 2 generation rate of 13.99 mmol h −1 g −1 (an apparent quantum efficiency of 10.8% at 420 nm), up to 107.6 and 43.7 times by contrast with that of g‐C 3 N 4 and Nb 2 O 5 , respectively. This work can provide a new platform in the design of artificial photocatalytic systems with high charge–transfer efficiency.
Type of Medium:
Online Resource
ISSN:
1613-6810
,
1613-6829
DOI:
10.1002/smll.202003302
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2168935-0
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