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Characterization of photoactive Fe-TiO2 lime coatings for building protection: the role of iron content

Kapridaki Chrysi, Xynidis Nikolaos, Vazgiouraki Eleftheria, Kallithrakas-Kontos Nikolaos, Maravelaki Pagona

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Extent16 pagesen
TitleCharacterization of photoactive Fe-TiO2 lime coatings for building protection: the role of iron contenten
CreatorKapridaki Chrysien
CreatorΚαπριδακη Χρυσηel
CreatorXynidis Nikolaosen
CreatorΞυνιδης Νικολαοςel
CreatorVazgiouraki Eleftheriaen
CreatorΒαζγιουρακη Ελευθεριαel
CreatorKallithrakas-Kontos Nikolaosen
CreatorΚαλλιθρακας-Κοντος Νικολαοςel
CreatorMaravelaki Pagonaen
CreatorΜαραβελακη Παγωναel
Content SummaryIron-doped TiO2 nanoparticles, ranging in Fe concentrations from0.05 up to 1.00%w/w, were synthesized through a simple sol-gel method. Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), Ultraviolet-Visible (UV-Vis) spectroscopy, nitrogen adsorption desorption isotherms, X-ray photoelectron spectroscopy (XPS), and X-ray absorption near-edge structure spectroscopy (XANES) were used to characterize the synthesized nanoparticles. The characterization of the Fe-doped TiO2 nanoparticles revealed the predominant presence of anatase crystalline form, as well as the incorporation of the Fe3+ ions into the crystal lattice of TiO2. The photocatalytic assessment of the Fe-doped TiO2 nanoparticles indicated that the low iron doping titania (0.05 and 0.10% w/w) have a positive effect on the photocatalytic degradation of Methyl Orange under visible radiation. Moreover, FTIR monitoring of calcium hydroxide pastes enriched with low Fe-doped TiO2 revealed enhancement of carbonation at both early and later stages. Improved photocatalytic performance and increased lime carbonation, observed in lime coatings with low Fe-doped TiO2 admixtures, established them as invaluable contributors to the protection of the built environment.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Date of Item2020-06-01-
Date of Publication2019-
SubjectFe contenten
SubjectFe-doped TiO2en
SubjectLime and Fe-TiO2 coatingen
SubjectPhotocatalytic activityen
SubjectVisible lighten
Bibliographic CitationC. Kapridaki, N. Xynidis, E. Vazgiouraki, N. Kallithrakas-Kontos and P.Maravelaki-Kalaitzaki, "Characterization of photoactive Fe-TiO2 lime coatings for building protection: the role of iron content," Materials, vol. 12, no. 11, Jun. 2019. doi: 10.3390/ma12111847en

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