Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art
The semiconducting transition metal oxide TiO<sub>2</sub> is a rather cheap and non-toxic material with superior photocatalytic properties. TiO<sub>2</sub> thin films and nanoparticles are known to have antibacterial, antiviral, antifungal, antialgal, self, water, and air-cle...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/10/9/139 |
| _version_ | 1797486839823597568 |
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| author | Volker Seiß Susanne Thiel Maik Eichelbaum |
| author_facet | Volker Seiß Susanne Thiel Maik Eichelbaum |
| author_sort | Volker Seiß |
| collection | DOAJ |
| description | The semiconducting transition metal oxide TiO<sub>2</sub> is a rather cheap and non-toxic material with superior photocatalytic properties. TiO<sub>2</sub> thin films and nanoparticles are known to have antibacterial, antiviral, antifungal, antialgal, self, water, and air-cleaning properties under UV or sun light irradiation. Based on these excellent qualities, titania holds great promises in various fields of applications. The vast majority of published field and pilot scale studies are dealing with the modification of building materials or generally focus on air purification. Based on the reviewed papers, for the coating of glass, walls, ceilings, streets, tunnels, and other large surfaces, titania is usually applied by spray-coating due to the scalibility and cost-efficiency of this method compared to alternative coating procedures. In contrast, commercialized applications of titania in medical fields or in water purification are rarely found. Moreover, in many realistic test scenarios it becomes evident that the photocatalytic activity is often significantly lower than in laboratory settings. In this review, we will give an overview on the most relevant real world applications and commonly applied preparation methods for these purposes. We will also look at the relevant bottlenecks such as visible light photocatalytic activity and long-term stability and will make suggestions to overcome these hurdles for a widespread usage of titania as photocalyst. |
| first_indexed | 2024-03-09T23:39:53Z |
| format | Article |
| id | doaj.art-617b6a9df7f64d1e874e7dceaa2b9b7e |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-09T23:39:53Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-617b6a9df7f64d1e874e7dceaa2b9b7e2023-11-23T16:54:09ZengMDPI AGInorganics2304-67402022-09-0110913910.3390/inorganics10090139Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the ArtVolker Seiß0Susanne Thiel1Maik Eichelbaum2Department of Applied Chemistry, Georg Simon Ohm University of Applied Sciences Nuremberg, Prinzregentenufer 47, 90489 Nürnberg, GermanyDepartment of Applied Chemistry, Georg Simon Ohm University of Applied Sciences Nuremberg, Prinzregentenufer 47, 90489 Nürnberg, GermanyDepartment of Applied Chemistry, Georg Simon Ohm University of Applied Sciences Nuremberg, Prinzregentenufer 47, 90489 Nürnberg, GermanyThe semiconducting transition metal oxide TiO<sub>2</sub> is a rather cheap and non-toxic material with superior photocatalytic properties. TiO<sub>2</sub> thin films and nanoparticles are known to have antibacterial, antiviral, antifungal, antialgal, self, water, and air-cleaning properties under UV or sun light irradiation. Based on these excellent qualities, titania holds great promises in various fields of applications. The vast majority of published field and pilot scale studies are dealing with the modification of building materials or generally focus on air purification. Based on the reviewed papers, for the coating of glass, walls, ceilings, streets, tunnels, and other large surfaces, titania is usually applied by spray-coating due to the scalibility and cost-efficiency of this method compared to alternative coating procedures. In contrast, commercialized applications of titania in medical fields or in water purification are rarely found. Moreover, in many realistic test scenarios it becomes evident that the photocatalytic activity is often significantly lower than in laboratory settings. In this review, we will give an overview on the most relevant real world applications and commonly applied preparation methods for these purposes. We will also look at the relevant bottlenecks such as visible light photocatalytic activity and long-term stability and will make suggestions to overcome these hurdles for a widespread usage of titania as photocalyst.https://www.mdpi.com/2304-6740/10/9/139TiO<sub>2</sub> photocatalysissemiconductor thin filmsantiviral and antibacterial propertiesair purificationwater purificationeasy-to-clean effect |
| spellingShingle | Volker Seiß Susanne Thiel Maik Eichelbaum Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art Inorganics TiO<sub>2</sub> photocatalysis semiconductor thin films antiviral and antibacterial properties air purification water purification easy-to-clean effect |
| title | Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art |
| title_full | Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art |
| title_fullStr | Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art |
| title_full_unstemmed | Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art |
| title_short | Preparation and Real World Applications of Titania Composite Materials for Photocatalytic Surface, Air, and Water Purification: State of the Art |
| title_sort | preparation and real world applications of titania composite materials for photocatalytic surface air and water purification state of the art |
| topic | TiO<sub>2</sub> photocatalysis semiconductor thin films antiviral and antibacterial properties air purification water purification easy-to-clean effect |
| url | https://www.mdpi.com/2304-6740/10/9/139 |
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