Abstract
Precise structural control had attracted tremendous interest in nanosynthesis due to its great importance in tailoring the physical properties of nanomaterials. Here we report the synthesis of highly ordered CdS-Au-TiO2 ternary Janus structure via template-protected sequential growth and conversion method. Arising from the integration of the rectification effect of Au-CdS and Au-TiO2 Schottky barriers, the Janus configuration of the CdS-TiO2 domains, the plasmonic effect of Au nanosphere, and the Z-scheme charge transportation, the CdS-Au-TiO2 Janus structure showed high efficiency in the model photocatalytic degradation of methyl orange (MO) dye. Importantly, the well-defined structural order allowed the identification of the correlation between the structure and the catalytic performance. We believe that the synthetic control and the mechanism insights would help the design and synthesis of sophisticated nanostructures, and would eventually promote their applications in photocatalysis fields.
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Acknowledgements
This work was supported by Jiangsu Science and Technology Plan (BK20211258), Nanjing Tech University (39837140), and Jiangsu Funding Program for Excellent Postdoctoral Talen.
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Supporting information The supporting information is available online at https://chem.scichina.com and https://link.springer.com/journal/11426. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.
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Xiao, R., Zhang, J., Jiang, T. et al. Highly ordered Janus CdS-Au-TiO2 Z-scheme structure with high efficiency in photocatalysis. Sci. China Chem. 66, 1722–1730 (2023). https://doi.org/10.1007/s11426-023-1551-7
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DOI: https://doi.org/10.1007/s11426-023-1551-7