Photocatalytic degradation of methylene blue by titanium dioxide: Experimental and modeling study

Xu, Chen, Rangaiah, G. P. and Zhao, X. S. (2014) Photocatalytic degradation of methylene blue by titanium dioxide: Experimental and modeling study. Industrial & Engineering Chemistry Research, 53 38: 14641-14649. doi:10.1021/ie502367x


Author Xu, Chen
Rangaiah, G. P.
Zhao, X. S.
Title Photocatalytic degradation of methylene blue by titanium dioxide: Experimental and modeling study
Journal name Industrial & Engineering Chemistry Research   Check publisher's open access policy
ISSN 0888-5885
1520-5045
Publication date 2014-09-01
Year available 2014
Sub-type Article (original research)
DOI 10.1021/ie502367x
Open Access Status Not yet assessed
Volume 53
Issue 38
Start page 14641
End page 14649
Total pages 9
Place of publication Washington DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
The application of semiconductors in water treatment via photocatalysis of various pollutants has attracted much attention from researchers. In this work, photocatalytic degradation of methylene blue by P25 titanium dioxide was studied experimentally and then via modeling. The effects of lamp choice, concentration of catalyst, and methylene blue were analyzed. Desorption of methylene blue at the start of light radiation was observed, and analyzed in detail for the first time. Both desorption and degradation processes were modeled, and experimental data was fitted to a pseudo-first-order model with sufficient accuracy. The effects of catalyst and initial dye concentration on reaction rate constants were discussed.
Keyword Visible-light
Heterogeneous catalyst
Water disinfection
Performance
Photodecolorization
Nanoparticles
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 24 times in Scopus Article | Citations
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Created: Sun, 26 Oct 2014, 10:45:59 EST by System User on behalf of School of Chemical Engineering