Photocatalytic activity of electrophoretically deposited (EPD) TiO2 coatings


Nuño, M., Ball, R. J., Bowen, C. R., Kurchania, R. and Sharma, G. D., 2015. Photocatalytic activity of electrophoretically deposited (EPD) TiO2 coatings. Journal of Materials Science, 50 (14), pp. 4822-4835.

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    This paper describes the application of electrophoretic deposition for air pollution removal using anatase as a photoactive coating. In this study the anatase form of TiO2 has been applied to (i) fluorine-doped tin oxide coated glass; (ii) 304L stainless steel; and (iii) titanium substrates using isopropanol and acetylacetone based solutions at 20, 40, 60 and 80V. In order to increase the strength of the substrate-anatase interface without transforming the phase into rutile, samples were calcined at 450ºC for 2 hours. The resulting coatings were characterised by Raman spectroscopy, X-ray diffraction (XRD), non-contact optical profilometry and scanning electron microscopy (SEM). The photocatalytic activity of the deposited coatings were evaluated in the gas-phase for nitrogen dioxide (NO2) removal by electron ionisation mass spectrometry whilst irradiated by light of wavelength 376-387nm for 100 minutes. Anatase phase titania supported on a fluorine-doped tin oxide coated glass substrate showed the highest photoactivity for NO2 remediation. This was attributed to the formation of a three-dimensional nanostructure with properties determined by the deposition conditions. The work provides routes for the development of low-cost and large area photoactive coatings for pollution control.


    Item Type Articles
    CreatorsNuño, M., Ball, R. J., Bowen, C. R., Kurchania, R. and Sharma, G. D.
    Uncontrolled Keywordselectrophoretic deposition,photocatalysis,tio2,anatase,no2,mass quadrupole
    DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
    Faculty of Engineering & Design > Mechanical Engineering
    Research CentresBRE Centre in Innovative Construction Materials
    Materials Research Centre
    Centre for Advanced Sensor Technologies (CAST)
    EPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
    Publisher Statement2015_Nuno_J_Mat_Sci.pdf: The final publication is available at Springer via 10.1007/s10853-015-9022-0
    ID Code46140


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