Au@α-Fe<sub>2</sub>O<sub>3</sub>纳米棒的制备及光催化性能

doi:10.11896/cldb.22050040

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Abstract Au nanoparticles deposited α-Fe₂O₃ (Au@α-Fe₂O₃) nanorods with a well-defined structure were fabricated by the hydrothermal method and the magnetron sputtering method. The deposition contents and morphology of Au nanoparticles were regulated by the magnetron sputtering time and the heat treatment temperature, respectively. After deposited 5.1% Au, Au@α-Fe₂O₃ nanorods show a new absorption peak at 550 nm in the UV-Vis spectrum as the results of the surface plasmon resonances (SPR) of Au nanoparticles, and their bandgap narrows from 2.20 to 1.95 eV. Moreover, the fluorescence intensity and electrochemical impedance of Au@α-Fe₂O₃ nanorods decrease significantly, while the photocurrent increases from 0.27 to 0.45 μA·cm^-2. Au nanoparticles extend the visible-light absorption performance and inhibit the recombination of electron-hole pairs of Au@α-Fe₂O₃ nanorods. The photocatalytic property of Au@α-Fe₂O₃ nanorods becomes more stable, and the photocatalytic efficiency of Au@α-Fe₂O₃ nanorods is about 1 time higher than that of α-Fe₂O₃ nanorods.

Key words： Au nanoparticles α-Fe₂O₃ nanorods photocatalytic property

Published: 10 February 2024 Online: 2024-02-19

CLC number:

O613.6

Fund:National Natural Science Foundation of China (Youth Foundation Project, 51902145) and Natural Science Foundation of Jiangsu Province (General Program, BK20191112).

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	Articles by authors
	LIN Qing
	LI Shuiping
	MIAO Zhipeng
	DING Yi
	LIANG Dong
	WANG Zhao
	ZHANG Xiaojuan

Cite this article:

LIN Qing,LI Shuiping,MIAO Zhipeng, et al. Fabrication and Photocatalytic Properties of Au@α-Fe₂O₃ Nanorods[J]. Materials Reports, 2024, 38(3): 22050040-6.

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http://www.mater-rep.com/EN/10.11896/cldb.22050040 OR http://www.mater-rep.com/EN/Y2024/V38/I3/22050040

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