Atomic heterojunction-induced accelerated charge transfer for boosted photocatalytic hydrogen evolution over 1D CdS nanorod/2D ZnIn2S4 nanosheet composites
Authors
Pan Li
Manli Liu
Jieqiong Li
Junling Guo
Qingfeng Zhou
Xiaoli Zhao, Edith Cowan UniversityFollow
Shuaijun Wang
Lijing Wang
Junmei Wang
Ya Chen
Jinqiang Zhang, Edith Cowan UniversityFollow
Qi Shen
Peng Qu
Hongqi Sun, Edith Cowan UniversityFollow
Document Type
Journal Article
Publication Title
Journal of Colloid and Interface Science
Volume
604
First Page
500
Last Page
507
Publisher
Elsevier
School
School of Engineering
RAS ID
38797
Funders
National Natural Science Foundation of China Key Research Programs Universities of Henan Province Program for Science & Technology Innovative Research Team in University of Henan Province Innovative Experimental Projects for College Students of Henan Province Shangqiu Normal Universities Starting Research Fund of Shanghqiu Normal University
Abstract
Design of highly efficient heterojunctions for photocatalytic hydrogen evolution is of significant importance to address the energy shortage and environmental crisis. Nevertheless, the smart design of semiconductor-based heterojunctions at the atomic scale still remains a significant challenge hitherto. Herein, we report novel atomic CdS/ZnIn2S4 heterojunctions by in-situ epitaxially growing 2D ZnIn2S4 nanosheets onto the surface of 1D defective CdS nanorods. The strong electronic coupling between defective CdS and ZnIn2S4 is confirmed by transient photocurrent response measurements, •O2− and •OH radicals experiments, and PL results, leading to accelerated interfacial charge separation and transfer. Additionally, the elevated charge transfer and electronic coupling are further confirmed by theoretical calculations. Consequently, CdS/ZnIn2S4 hybrids exhibit superior photocatalytic hydrogen generation activity to pristine CdS. Our findings offer a new paradigm for designing atomic 1D/2D heterojunctions for efficient solar-driven energy conversion.
DOI
10.1016/j.jcis.2021.07.041
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Comments
Li, P., Liu, M., Li, J., Guo, J., Zhou, Q., Zhao, X., ... Sun, H. (2021). Atomic heterojunction-induced accelerated charge transfer for boosted photocatalytic hydrogen evolution over 1D CdS nanorod/2D ZnIn2S4 nanosheet composites. Journal of Colloid and Interface Science, 604, 500-507. https://doi.org/10.1016/j.jcis.2021.07.041