Photocatalytic TiO2 and Doped TiO2 Coatings to Improve the Hygiene of Surfaces Used in Food and Beverage Processing: A Study of the Physical and Chemical Resistance of the Coatings

P. Navabpour; S. Ostovarpour; C. Tattershall; K. Cooke; P. Kelly; J. Verran; K. Whitehead; C. Hill; Mari Raulio; Outi Priha

doi:10.3390/coatings4030433

Photocatalytic TiO2 and Doped TiO2 Coatings to Improve the Hygiene of Surfaces Used in Food and Beverage Processing: A Study of the Physical and Chemical Resistance of the Coatings

P. Navabpour, S. Ostovarpour, C. Tattershall, K. Cooke, P. Kelly, J. Verran, K. Whitehead, C. Hill, Mari Raulio, Outi Priha

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

14 Citations (Scopus)

Abstract

TiO2 coatings deposited using reactive magnetron sputtering and spray coating methods, as well as Ag- and Mo-doped TiO2 coatings were investigated as self-cleaning surfaces for beverage processing. The mechanical resistance and retention of the photocatalytic properties of the coatings were investigated over a three-month period in three separate breweries. TiO2 coatings deposited using reactive magnetron sputtering showed better mechanical durability than the spray coated surfaces, whilst the spray-deposited coating showed enhanced retention of photocatalytic properties. The presence of Ag and Mo dopants improved the photocatalytic properties of TiO2 as well as the retention of these properties. The spray-coated TiO2 was the only coating which showed light-induced hydrophilicity, which was retained in the coatings surviving the process conditions

Original language	English
Pages (from-to)	433-449
Journal	Coatings
Volume	4
Issue number	3
DOIs	https://doi.org/10.3390/coatings4030433
Publication status	Published - 2014
MoE publication type	A1 Journal article-refereed

Keywords

photocatalytic
TiO2
magnetron sputtering
spray coatings
beverage processing

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10.3390/coatings4030433

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Navabpour, P., Ostovarpour, S., Tattershall, C., Cooke, K., Kelly, P., Verran, J., Whitehead, K., Hill, C., Raulio, M., & Priha, O. (2014). Photocatalytic TiO2 and Doped TiO2 Coatings to Improve the Hygiene of Surfaces Used in Food and Beverage Processing: A Study of the Physical and Chemical Resistance of the Coatings. Coatings, 4(3), 433-449. https://doi.org/10.3390/coatings4030433

Navabpour, P. ; Ostovarpour, S. ; Tattershall, C. ; Cooke, K. ; Kelly, P. ; Verran, J. ; Whitehead, K. ; Hill, C. ; Raulio, Mari ; Priha, Outi. / Photocatalytic TiO2 and Doped TiO2 Coatings to Improve the Hygiene of Surfaces Used in Food and Beverage Processing : A Study of the Physical and Chemical Resistance of the Coatings. In: Coatings. 2014 ; Vol. 4, No. 3. pp. 433-449.

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abstract = "TiO2 coatings deposited using reactive magnetron sputtering and spray coating methods, as well as Ag- and Mo-doped TiO2 coatings were investigated as self-cleaning surfaces for beverage processing. The mechanical resistance and retention of the photocatalytic properties of the coatings were investigated over a three-month period in three separate breweries. TiO2 coatings deposited using reactive magnetron sputtering showed better mechanical durability than the spray coated surfaces, whilst the spray-deposited coating showed enhanced retention of photocatalytic properties. The presence of Ag and Mo dopants improved the photocatalytic properties of TiO2 as well as the retention of these properties. The spray-coated TiO2 was the only coating which showed light-induced hydrophilicity, which was retained in the coatings surviving the process conditions",

keywords = "photocatalytic, TiO2, magnetron sputtering, spray coatings, beverage processing",

author = "P. Navabpour and S. Ostovarpour and C. Tattershall and K. Cooke and P. Kelly and J. Verran and K. Whitehead and C. Hill and Mari Raulio and Outi Priha",

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Navabpour, P, Ostovarpour, S, Tattershall, C, Cooke, K, Kelly, P, Verran, J, Whitehead, K, Hill, C, Raulio, M & Priha, O 2014, 'Photocatalytic TiO2 and Doped TiO2 Coatings to Improve the Hygiene of Surfaces Used in Food and Beverage Processing: A Study of the Physical and Chemical Resistance of the Coatings', Coatings, vol. 4, no. 3, pp. 433-449. https://doi.org/10.3390/coatings4030433

Photocatalytic TiO2 and Doped TiO2 Coatings to Improve the Hygiene of Surfaces Used in Food and Beverage Processing : A Study of the Physical and Chemical Resistance of the Coatings. / Navabpour, P.; Ostovarpour, S.; Tattershall, C.; Cooke, K.; Kelly, P.; Verran, J.; Whitehead, K.; Hill, C.; Raulio, Mari; Priha, Outi.

In: Coatings, Vol. 4, No. 3, 2014, p. 433-449.

Research output: Contribution to journal › Article › Scientific › peer-review

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AB - TiO2 coatings deposited using reactive magnetron sputtering and spray coating methods, as well as Ag- and Mo-doped TiO2 coatings were investigated as self-cleaning surfaces for beverage processing. The mechanical resistance and retention of the photocatalytic properties of the coatings were investigated over a three-month period in three separate breweries. TiO2 coatings deposited using reactive magnetron sputtering showed better mechanical durability than the spray coated surfaces, whilst the spray-deposited coating showed enhanced retention of photocatalytic properties. The presence of Ag and Mo dopants improved the photocatalytic properties of TiO2 as well as the retention of these properties. The spray-coated TiO2 was the only coating which showed light-induced hydrophilicity, which was retained in the coatings surviving the process conditions

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KW - TiO2

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