Paper Title:
Photocatalytic Cr(VI) Reduction by Anodized TiO2
  Abstract

In this study, immobilized nanotubular TiO2 is used to reduce toxic Cr(VI) to non toxic Cr(III) in aqueous solution under UV irradiation. To overcome the limitation of powder TiO2, a novel technique of immobilization based on anodization was applied and investigated under various experimental conditions. Among the samples tested under same anodizing condition, the nanotubular TiO2 annealed at 450 oC and 550 oC showed higher reduction efficiencies of Cr(VI). In addition, the surface characterizations (zeta potential, XRD and SEM) of these samples proved that the Cr(VI) reduction efficiency was higher under acidic conditions and at a lower annealing temperature. Through this study, it was concluded that anodized TiO2 has the potential to be useful technology for environmental remediation as well as hydrogen production in water.

  Info
Periodical
Edited by
Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee
Pages
221-224
DOI
10.4028/www.scientific.net/MSF.569.221
Citation
J. K. Yoon, E. J. Shim, J. W. Ha, H. K. Joo, "Photocatalytic Cr(VI) Reduction by Anodized TiO2", Materials Science Forum, Vol. 569, pp. 221-224, 2008
Online since
January 2008
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Price
$32.00
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