CdS QDs decorated on 3D flower-like SnO: a hierarchical photocatalyst with boosted charge separation for hydrogen production
Developing novel catalysts with excellent photocatalytic hydrogen evolution activity is crucial for expediting current research on solar-chemical energy conversion. In the present study, unique Sn 3 O 4 /CdS composites were carefully designed and prepared using a facile hydrothermal method to achiev...
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Published in | New journal of chemistry Vol. 48; no. 1; pp. 3 - 38 |
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Main Authors | , , , , , |
Format | Journal Article |
Published |
18.12.2023
|
Online Access | Get full text |
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Summary: | Developing novel catalysts with excellent photocatalytic hydrogen evolution activity is crucial for expediting current research on solar-chemical energy conversion. In the present study, unique Sn
3
O
4
/CdS composites were carefully designed and prepared using a facile hydrothermal method to achieve outstanding photocatalytic H
2
production activity. Various techniques were employed to determine the crystalline structure, chemical composition, microstructure, and optical and electrochemical characteristics of the prepared samples. The experimental results indicate that zero-dimensional (0D) CdS quantum dots were tightly attached to the surface of three-dimensional (3D) Sn
3
O
4
nanoflowers. Furthermore, enhanced light-absorbing capacity and accelerated electron-hole separation and transfer were achieved after incorporating CdS quantum dots into Sn
3
O
4
nanoflowers. The generation rate of hydrogen using the optimal sample (Sn
3
O
4
/CdS QDs-2) was about 20.74 μmol g
−1
h
−1
, which was 2.86 and 3.16 times those of pure Sn
3
O
4
and CdS, respectively. In addition, the possible photocatalytic H
2
production mechanism of Sn
3
O
4
/CdS nanocomposites was also revealed. This work is highly desirable to provide valuable inspiration for rational design and preparation of efficient photocatalysts for H
2
evolution.
0D/3D Sn
3
O
4
/CdS nanocomposites were prepared for efficient photocatalytic hydrogen production under visible light irradiation. |
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Bibliography: | https://doi.org/10.1039/d3nj03611a Electronic supplementary information (ESI) available. See DOI |
ISSN: | 1144-0546 1369-9261 |
DOI: | 10.1039/d3nj03611a |