Synthesis, photocatalytic activity of nanosized ZnO and Ag/ZnO heterostructure

Jing Zhang; Xiaolei Zhang; Yanfei Hou

doi:10.1117/12.3045548

15 January 2025 Synthesis, photocatalytic activity of nanosized ZnO and Ag/ZnO heterostructure

Jing Zhang, Xiaolei Zhang, Yanfei Hou

Author Affiliations +

Proceedings Volume 13513, The International Conference Optoelectronic Information and Optical Engineering (OIOE2024); 135131L (2025) https://doi.org/10.1117/12.3045548
Event: The International Conference Optoelectronic Information and Optical Engineering (OIOE2024), 2024, Wuhan, China

Abstract

Nanosized ZnO and Ag/ZnO heterostructure with different Ag content of 2.5%, 5% and 10% have been synthesized by a two-step glucose-assisted chemical method. The growth mechanism study of Ag/ZnO heterostructure revealed that the metallic Ag generated in the first step and the ZnO nanocrystals formed in the second heat treatment process. The structural and optical properties of the as-grown samples were determined by x-ray diffraction, x-ray photoelectron spectroscopy, transmission electron microscopy and Ultraviolet-visible spectroscopy. The results confirm that the heterostructure are composed of single crystal Ag nanoparticles grown along the (0002) plane of hexagonal wurtzite ZnO. Moreover, the photocatalysis test shows that the nanosized Ag/ZnO heterostructures exhibit a higher photocatalytic activity than the pure ZnO. This maybe the dual function causing by the crystal defects of Ag doping and the interface formed in the nanosized Ag/ZnO heterostructure.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Jing Zhang, Xiaolei Zhang, and Yanfei Hou "Synthesis, photocatalytic activity of nanosized ZnO and Ag/ZnO heterostructure", Proc. SPIE 13513, The International Conference Optoelectronic Information and Optical Engineering (OIOE2024), 135131L (15 January 2025); https://doi.org/10.1117/12.3045548

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KEYWORDS

Zinc oxide

Silver

Heterojunctions

Light absorption

Zinc

Nanocrystals

Doping

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