Paper Title:
Photocatalytic Decolourisation of Orange II Aqueous Solutions by TiO2 and ZnO Active Layers Screen Printed on Ceramic Tiles
  Abstract

In this work TiO2 and ZnO layers have been deposited by screen-printing in common glazed ceramic tiles. These layers were evaluated for the photocatalytic degradation of Orange II in aqueous solutions, in a batch photoreactor under visible light. The photocatalytic behaviour was assessed by taking into account experimental variables which include: (i) firing temperature of the TiO2 printed layer; (ii) layer thickness; (iii) operation time; (iv) pH; and (v) dye concentration. Optimal processed layers showed an interesting decolourisation performance (over 90% efficiency after 7-8 h). It is anticipated that these new ceramic materials might be developed as an interesting alternative to TiO2 or ZnO suspensions, for example in photocatalytic applications excusing the particles removal at the end of the process.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
1377-1382
DOI
10.4028/www.scientific.net/MSF.636-637.1377
Citation
E. Rego, P.S. Marcos, J. Marto, M.P. Seabra, J.A. Labrincha, "Photocatalytic Decolourisation of Orange II Aqueous Solutions by TiO2 and ZnO Active Layers Screen Printed on Ceramic Tiles ", Materials Science Forum, Vols. 636-637, pp. 1377-1382, 2010
Online since
January 2010
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$32.00
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