Self-cleaning tiles and glasses for eco-efficient buildings

Synnott, Damian W.; Nolan, Nicholas T.; Ryan, D.; Colreavy, John; Pillai, Suresh C.

doi:10.1533/9780857098832.3.327

Cited by 5 publications

(7 citation statements)

References 62 publications

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“…The screen-printed Rz label was tested on a number of different commercial photocatalytic samples, the details of which are given in Commercial photocatalytic self-cleaning materials are finding increasing usage throughout the world, with the market's total worth being projected at over $3 billion for 2020 [1]; the bulk of this use is in the form of architectural materials, such as self-cleaning: glass, paint, awning and concrete materials [2,3]. It follows that there is a real need for novel, accessible and economical testing methods for assessing the efficacies of such materials.…”

Section: Assessment Of Photocatalytic Surface Activitiesmentioning

confidence: 99%

Photocatalyst activity indicating adhesive labels for use in the field

Mills¹,

Hawthorne²,

Hazafy³

et al. 2018

Journal of Photochemistry and Photobiology A: Chemistry

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The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is described. The label is applied to a number of different TiO2-based, photocatalytic materials, including self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel film, produced in-house. In all cases, the label exhibited a blue to pink colour transition upon irradiation with UV light. In most cases, the time taken to bleach 90% of the red component of the digital image of the ink, ttb(90), was twice that for a traditional Rz ink, produced by the drawdown method, since the former was twice as thick. Although not as fast as a drawdown Rz ink, by a factor of ca two, it still only takes minutes to change and the Rz label is much more easily used, stored and does not need the sample to be: very smooth, horizontal or flat. As such it appears ideal for testing samples, both quantitatively and qualitatively in situ, i.e. in the field.

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Section: Assessment Of Photocatalytic Surface Activitiesmentioning

confidence: 99%

Photocatalyst activity indicating adhesive labels for use in the field

Mills¹,

Hawthorne²,

Hazafy³

et al. 2018

Journal of Photochemistry and Photobiology A: Chemistry

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“…TiO 2 coating allows for ease in maintenance, as organic compounds are easily washed off due to the bond broken with dirt particles (Synnott et al, 2013). Midtdal and Jelle (2013) report that TiO 2 coating requires less maintenance than ordinary façade coatings, resulting in time and cost savings, due to its strong adhesion characteristics (Rudic et al, 2015).…”

Section: Ijbpa 352mentioning

confidence: 99%

“…Prevents water spotting on façade Lee et al (2003), Guan (2005) Excellent façade durability due to its photocatalytic property Kirtay (2006), Pacheco et al (2011), Quagliarini et al (2012 Self-cleaning action Lee et al (2003), Agrios and Pichat (2005), Guan (2013), Synnott et al (2013), Enea (2013), Rudic et al (2015), Bai et al (2015) Environmental benefits…”

Section: Types Of Benefits Literaturementioning

confidence: 99%

“…Air purifier Chen and Poon (2009), Hassan et al (2010) Anti-bacterial Parkin (2005) Algae growth prevention and macroorganisms removal Hashimoto et al (2005), Katzman (2006), Beeldens (2008), Chen and Poon (2009), Hassan et al (2010), Pacheco-Torgal and Jalali (2011), De Richter and Caillol (2011), Enea (2013, Graziani et al (2013) (Guan, 2013;Law, 2016). TiO 2 façade-coated surfaces have excellent anti-fogging and self-cleaning abilities due to its hydrophilic properties (Synnott et al, 2013). TiO 2 façade coating displays both photocatalytic and hydrophilic properties, which accelerate the cleaning process because water is able to remove oily coatings (Agrios and Pichat, 2005) and dirt particles can be swept easily away (Benedix et al, 2000).…”

Section: Types Of Benefits Literaturementioning

confidence: 99%

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Green maintainability design criteria for nanostructured titanium dioxide (TiO₂) façade coatings

Chew

Conejos

Law

2017

IJBPA

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Purpose Nanostructured titanium dioxide (TiO2) coatings can potentially address the current surge in façade cleaning cost, maintenance and labour problems. The purpose of this paper is to investigate potential maintainability issues and design challenges concerning the effective performance of TiO2 façade coatings’ hydrophilic properties, especially in tropical environments such as Singapore. This paper aims to establish a list of green maintainability design criteria to help minimise future TiO2 façade coating issues when this coating is applied on commercial buildings with concrete and stonemasonry façade materials. Design/methodology/approach A mixed-mode approach that includes a literature review, site investigation, instrumental case studies and expert interviews is used in this study. Findings TiO2 coatings help improve façade performance whilst offering environmental benefits to society. This study reports that green maintainability design criteria are vital requirements in designing sustainable buildings at the outset. The identified defects and issues will aid in ensuring the effectiveness of TiO2 application in building façades. Originality/value This study acts as a foundation for future researchers to strengthen this little researched area, serves as a useful guide in preventing possible TiO2 coating issues and promotes industry awareness of the use of TiO2 façade coatings.

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“…The temperature resistance of tiles, unlike plastics, makes them an ideal substrate for directly attaching photocatalytic layers by sintering [40]. By reason of their self-cleaning properties, the so produced tiles are becoming widely spread used, which still limited to a worthwhile outdoor use [41]. Thousands of tall buildings are reported to have been covered with self-cleaning tiles in Japan [42].…”

Section: Introductionmentioning

confidence: 99%

Environmental release of engineered nanomaterials from commercial tiles under standardized abrasion conditions

Bressot

Manier

Pagnoux

et al. 2017

Journal of Hazardous Materials

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The study presented here focuses on commercial antibacterial tiles whose emissivity of (nano) particles due to abrasion has yet barely been investigated. The tiles have been characterized regarding their surface properties and composition throughout their chain-of-use, i.e. from their state of commercialization until the experimental end-of-service life. In contrast to plane standard tiles, their surfaces form hilly surfaces. In the depressions, titanium dioxide is found at the surface, thus theoretically protected by the hilly areas against abrasion on the tile's surface. Furthermore, a deposition technique has been put in place by producers allowing for coating the before mentioned commercial tiles with titanium dioxide, thus being similar to those commercially available. It consists in depositing titanium dioxide on the surface, latter one allowing fixing the first. This development allows for better understanding the future options for product formulation and thus improvement with respect to particle release. The tests reveal the aerosolization from commercial antibacterial tiles of micronic and submicronic particles in the inhalable region or particles that can subjected to be released in the environment (<10μm). The aersolization of the particles from the coated tiles was found to be significantly higher compared to the non coated tiles.

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Self-cleaning tiles and glasses for eco-efficient buildings

Cited by 5 publications

References 62 publications

Photocatalyst activity indicating adhesive labels for use in the field

Photocatalyst activity indicating adhesive labels for use in the field

Green maintainability design criteria for nanostructured titanium dioxide (TiO₂) façade coatings

Environmental release of engineered nanomaterials from commercial tiles under standardized abrasion conditions

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Self-cleaning tiles and glasses for eco-efficient buildings

Cited by 5 publications

References 62 publications

Photocatalyst activity indicating adhesive labels for use in the field

Photocatalyst activity indicating adhesive labels for use in the field

Green maintainability design criteria for nanostructured titanium dioxide (TiO2) façade coatings

Environmental release of engineered nanomaterials from commercial tiles under standardized abrasion conditions

Contact Info

Product

Resources

About

Green maintainability design criteria for nanostructured titanium dioxide (TiO₂) façade coatings