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Title: Sea-urchin-like ReS2 nanosheets with charge edge-collection effect as a novel cocatalyst for high-efficiency photocatalytic H2 evolution
Authors: Lin, Bo
Ma, Bowen
Chen, Jiangang
Zhou, Yao
Zhou, Jiadong
Yan, Xiaoqing
Xue, Chao
Luo, Xiao
Liu, Qing
Wang, Jinyong
Bian, Renji
Yang, Guidong
Liu, Fucai
Keywords: Engineering::Materials
Issue Date: 2022
Source: Lin, B., Ma, B., Chen, J., Zhou, Y., Zhou, J., Yan, X., Xue, C., Luo, X., Liu, Q., Wang, J., Bian, R., Yang, G. & Liu, F. (2022). Sea-urchin-like ReS2 nanosheets with charge edge-collection effect as a novel cocatalyst for high-efficiency photocatalytic H2 evolution. Chinese Chemical Letters, 33(2), 943-947.
Journal: Chinese Chemical Letters
Abstract: The recombination of charge carriers arriving from the random charge movement in semiconductor photocatalysts greatly limits the practical application of solar-driven H2 evolution. The design of photocatalytic systems with spatially oriented charge-transfer is a promising route to achieve high charge-separation efficiency for photocatalysts. Herein, novel sea-urchin-like ReS2 nanosheet/TiO2 nanoparticle heterojunctions (SURTHs) are constructed. The unique sea-urchin-like structure endows the ReS2 cocatalyst with an unusual charge edge-collection effect, which leads to a significant acceleration of charge separation and transfer, as evidenced by the well-designed selective photodeposition of Pt quantum dots in SURTHs. The markedly improved charge transfer capacity contributes to a high photocatalytic H2 evolution rate of 3.71 mmol h−1 g−1 for SURTHs (an apparent quantum efficiency (AQE) of 16.09%), up to 231.9 times by contrast with that of P25 TiO2. This work would provide a new platform for designing the high-efficiency cocatalyst/photocatalyst system with excellent charge transfer capacity.
ISSN: 1001-8417
DOI: 10.1016/j.cclet.2021.07.015
Rights: © 2021 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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