Paper Title:
Photocatalytic Methyl Orange Degradation on TiO2-NaX Composite
  Abstract

Photocatalytic activities of simple mixture of TiO2 and NaX, and TiO2-NaX composite prepared by solid-state dispersion method were investigated. Methyl orange degradation rate increased sharply when TiO2 concentration was low and reached its maximum value at TiO2 concentration of 200 mg/l when using pure TiO2. After 120 min of irradiation, methyl orange degradation rate could reach 98.4%, which means nearly all of the dye degraded after two hours. The photocatalytic activity of TiO2 and NaX simple mixture increased with increasing amount of NaX up to 60.4% when NaX amount was 1.4 g/l. The composite TiO2-NaX prepared by grinding had lower activity at various NaX addition amount. The photocatalytic activity of composite TiO2-NaX prepared by solid-state dispersion was better than the composite before calcination. However, the maximum degradation rate was only 41.2%, which was still lower than pure TiO2.

  Info
Periodical
Advanced Materials Research (Volumes 129-131)
Edited by
Xie Yi and Li Mi
Pages
804-807
DOI
10.4028/www.scientific.net/AMR.129-131.804
Citation
H. Wang, Y. Yu, W. J. Zhang, "Photocatalytic Methyl Orange Degradation on TiO2-NaX Composite", Advanced Materials Research, Vols. 129-131, pp. 804-807, 2010
Online since
August 2010
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Price
$32.00
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