Enhancing Antibacterial Properties and Biosafety Evaluation of TiO2/Cu Photocatalytic Coatings Through Suspension Flame Spraying

Wang, Congcong; Feng, Xiaohua; Dan, Yanxin; Liu, Yi; Li, Hua

doi:10.1007/s11666-023-01692-1

J Therm Spray Tech

2023

DOI: 10.1007/s11666-023-01692-1

|View full text |Cite

Enhancing Antibacterial Properties and Biosafety Evaluation of TiO2/Cu Photocatalytic Coatings Through Suspension Flame Spraying

Congcong Wang,

Xiaohua Feng,

Yanxin Dan

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Antimicrobial and Superhydrophobic CuONPs/TiO₂ Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Pal,

Villani,

Mansi

et al. 2024

ACS Omega

View full text Add to dashboard Cite

Biofilm formation in common public places and hospitals is of great concern. Active antimicrobial coatings can prevent the formation of bacterial biofilms and the spreading of primary and secondary infections caused by contagious bacteria and viruses. In the present work, we report a simple spray coating process using copper oxide (CuO) nanoparticles (NPs) dispersed in a titanium dioxide (TiO 2 ) sol, where CuONPs act as the active antimicrobial agent and TiO 2 as the inorganic binder. Homogeneous CuONPs/TiO 2 coating was obtained on polypropylene substrates by spraying the CuO/TiO 2 sol using a commercial air gun, followed by drying at 80 °C. The amount of CuONPs loading in the coating was adjusted by controlling the number of coated layers. CuONPs and CuONPs/TiO 2 coatings were characterized by XRD, BET, X-ray fluorescence spectroscopy, AFM, and field emission scanning electron microscopy techniques. All of the coated films showed dual activity, i.e., antimicrobial and superhydrophobicity. A high bactericidal effect against both Escherichia coli and Staphylococcus aureus was observed for the coated substrates. Coatings with higher CuONPs showed greater antibacterial activity, reaching R value >6, and no bacterial colonies were detected after 24 h of incubation. An increasing trend of water contact angle was observed with the increasing amount of CuONP loading.

show abstract

Antimicrobial and Superhydrophobic CuONPs/TiO₂ Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Pal,

Villani,

Mansi

et al. 2024

ACS Omega

View full text Add to dashboard Cite

show abstract

Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method

Lu,

Sun,

Jiang

et al. 2024

Catalysts

View full text Add to dashboard Cite

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.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Enhancing Antibacterial Properties and Biosafety Evaluation of TiO2/Cu Photocatalytic Coatings Through Suspension Flame Spraying

Cited by 2 publications

References 69 publications

Antimicrobial and Superhydrophobic CuONPs/TiO₂ Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Antimicrobial and Superhydrophobic CuONPs/TiO₂ Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method

Contact Info

Product

Resources

About

Enhancing Antibacterial Properties and Biosafety Evaluation of TiO2/Cu Photocatalytic Coatings Through Suspension Flame Spraying

Cited by 2 publications

References 69 publications

Antimicrobial and Superhydrophobic CuONPs/TiO2 Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Antimicrobial and Superhydrophobic CuONPs/TiO2 Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Insight into the Structural and Performance Correlation of Photocatalytic TiO2/Cu Composite Films Prepared by Magnetron Sputtering Method

Contact Info

Product

Resources

About

Antimicrobial and Superhydrophobic CuONPs/TiO₂ Hybrid Coating on Polypropylene Substrates against Biofilm Formation

Antimicrobial and Superhydrophobic CuONPs/TiO₂ Hybrid Coating on Polypropylene Substrates against Biofilm Formation