Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles
Abstract Bacterial infections triggered by patient or healthcare worker contact with surfaces are a major cause of medically acquired infections. By controlling the kinetics of tetrabutyl titanate hydrolysis and condensation during the sol–gel process, it is possible to regulate the content of Ti3+...
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Nature Portfolio
2024-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-58660-0 |
| _version_ | 1797219903506219008 |
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| author | Mingzhu Zhou Xingran Zhang Yuanxia Quan Yu Tian Jie Chen Li Li |
| author_facet | Mingzhu Zhou Xingran Zhang Yuanxia Quan Yu Tian Jie Chen Li Li |
| author_sort | Mingzhu Zhou |
| collection | DOAJ |
| description | Abstract Bacterial infections triggered by patient or healthcare worker contact with surfaces are a major cause of medically acquired infections. By controlling the kinetics of tetrabutyl titanate hydrolysis and condensation during the sol–gel process, it is possible to regulate the content of Ti3+ and oxygen vacancies (OVs) in TiO2, and adjust the associated visible light-induced photocatalytic performance and anti-bacterial adhesion properties. The results have shown that the Ti3+ content in TiO2 was 9.87% at the calcination temperature of the reaction system was 300 °C and pH was 1.0, corresponding to optimal photocatalytic and hydrophilic properties. The formation of a hydrated layer on the superhydrophilic surface provided resistance to bacterial adhesion, preventing cross-contamination on high-touch surfaces. The excellent photocatalytic self-cleaning performance and anti-bacterial adhesion properties can be attributed to synergistic effects associated with the high specific surface area of TiO2 nanoparticles, the mesoporous structure, and the presence of Ti3+ and OVs. The formation of superhydrophilic self-cleaning surfaces under visible light can serve as the basis for the development of a new class of anti-bacterial adhesion materials. |
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| id | doaj.art-f7d4f8bdc96f476db2794eca39e3938a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T12:41:02Z |
| publishDate | 2024-04-01 |
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| spelling | doaj.art-f7d4f8bdc96f476db2794eca39e3938a2024-04-07T11:14:48ZengNature PortfolioScientific Reports2045-23222024-04-0114111410.1038/s41598-024-58660-0Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticlesMingzhu Zhou0Xingran Zhang1Yuanxia Quan2Yu Tian3Jie Chen4Li Li5School of Chemistry and Chemical Engineering, Chongqing University of TechnologySchool of Chemistry and Chemical Engineering, Chongqing University of TechnologySchool of Chemistry and Chemical Engineering, Chongqing University of TechnologySchool of Chemistry and Chemical Engineering, Chongqing University of TechnologySchool of Chemistry and Chemical Engineering, Chongqing University of TechnologySchool of Chemistry and Chemical Engineering, Chongqing University of TechnologyAbstract Bacterial infections triggered by patient or healthcare worker contact with surfaces are a major cause of medically acquired infections. By controlling the kinetics of tetrabutyl titanate hydrolysis and condensation during the sol–gel process, it is possible to regulate the content of Ti3+ and oxygen vacancies (OVs) in TiO2, and adjust the associated visible light-induced photocatalytic performance and anti-bacterial adhesion properties. The results have shown that the Ti3+ content in TiO2 was 9.87% at the calcination temperature of the reaction system was 300 °C and pH was 1.0, corresponding to optimal photocatalytic and hydrophilic properties. The formation of a hydrated layer on the superhydrophilic surface provided resistance to bacterial adhesion, preventing cross-contamination on high-touch surfaces. The excellent photocatalytic self-cleaning performance and anti-bacterial adhesion properties can be attributed to synergistic effects associated with the high specific surface area of TiO2 nanoparticles, the mesoporous structure, and the presence of Ti3+ and OVs. The formation of superhydrophilic self-cleaning surfaces under visible light can serve as the basis for the development of a new class of anti-bacterial adhesion materials.https://doi.org/10.1038/s41598-024-58660-0Anatase TiO2Ti3+/OVsHydrophilicityPhotocatalysisAnti-bacterial adhesion |
| spellingShingle | Mingzhu Zhou Xingran Zhang Yuanxia Quan Yu Tian Jie Chen Li Li Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles Scientific Reports Anatase TiO2 Ti3+/OVs Hydrophilicity Photocatalysis Anti-bacterial adhesion |
| title | Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles |
| title_full | Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles |
| title_fullStr | Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles |
| title_full_unstemmed | Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles |
| title_short | Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO2 nanoparticles |
| title_sort | visible light induced photocatalytic and antibacterial adhesion properties of superhydrophilic tio2 nanoparticles |
| topic | Anatase TiO2 Ti3+/OVs Hydrophilicity Photocatalysis Anti-bacterial adhesion |
| url | https://doi.org/10.1038/s41598-024-58660-0 |
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