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Open AccessArticle
Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method
by
Kun Lu
Kun Lu 1,2,
Miao Sun
Miao Sun 1,
Yaohong Jiang
Yaohong Jiang 2,
Xinmeng Wu
Xinmeng Wu 2,
Lijun Zhao
Lijun Zhao 2,* and
Junhua Xu
Junhua Xu 2,*
1
Department of medicine, Chuzhou City Vocational College, Chuzhou 239000, China
2
School of Material and Science, Jiangsu University of Science and Technology, Zhenjiang 212000, China
*
Authors to whom correspondence should be addressed.
Catalysts 2024, 14(9), 621; https://doi.org/10.3390/catal14090621 (registering DOI)
Submission received: 12 August 2024
/
Revised: 9 September 2024
/
Accepted: 12 September 2024
/
Published: 14 September 2024
Abstract
Photocatalysis technology, as an efficient and safe environmentally friendly purification technique, has garnered significant attention and interest. Traditional TiO2 photocatalytic materials still face limitations in practical applications, hindering their widespread adoption. The research prepared TiO2/Cu films with different Cu contents using a magnetron sputtering multi-target co-deposition technique. The incorporation of Cu significantly enhances the antibacterial properties and visible light response of the films. The effects of different Cu contents on the microstructure, surface morphology, wettability, antibacterial properties, and visible light response of the films were investigated using an X-ray diffractometer, X-ray photoelectron spectrometer, field emission scanning electron microscope, confocal laser scanning microscope, Ultraviolet–visible spectrophotometer, and contact angle goniometer. The results showed that the prepared TiO2/Cu films were mainly composed of the rutile TiO2 phase and face-center cubic Cu phase. The introduction of Cu affected the crystal orientation of TiO2 and refined the grain size of the films. With the increase in Cu content, the surface roughness of the films first decreased and then increased. The water contact angle of the films first increased and then decreased, and the film exhibited optimal hydrophobicity when the Cu target power was 10 W. The TiO2/Cu films showed good antibacterial properties against Escherichia coli and Staphylococcus aureus. The introduction of Cu shifted the absorption edge of the films to the red region, significantly narrowed the band gap width to 2.5 eV, and broadened the light response range of the films to the visible light region.
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MDPI and ACS Style
Lu, K.; Sun, M.; Jiang, Y.; Wu, X.; Zhao, L.; Xu, J.
Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method. Catalysts 2024, 14, 621.
https://doi.org/10.3390/catal14090621
AMA Style
Lu K, Sun M, Jiang Y, Wu X, Zhao L, Xu J.
Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method. Catalysts. 2024; 14(9):621.
https://doi.org/10.3390/catal14090621
Chicago/Turabian Style
Lu, Kun, Miao Sun, Yaohong Jiang, Xinmeng Wu, Lijun Zhao, and Junhua Xu.
2024. "Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method" Catalysts 14, no. 9: 621.
https://doi.org/10.3390/catal14090621
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