Photocalytic decolorization of lanasol blue CE dye solution using a Flat-plate reactor

Linda Zou, Yuncang Li, Eric Hu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


This paper reports the effectiveness of the photocatalysis TiO 2 in degrading Lanasol Blue CE. A flat-plate reactor (FPR) with a reactor area of 0.37 m2 and ultraviolet (UV) light source of six 36 W blacklight lamps was used in the study. Operating variables including dosage of the photocatalyst, flow rates through the FPR, UV intensity, and tilted angle of the reactor were investigated to degrade Lanasol Blue CE. Results showed that the photocatalytic process can efficiently remove the color in textile dyeing effluent. The degradation process was approximated using first-order kinetics. The photocatalytic apparent reaction rate increased with the increasing UV intensity received by the photocatalyst TiO2 in slurry. The liquid flow rate and tilted angle influenced the film thickness. The apparent reaction rate constant was mainly determined by the liquid film thickness, UV intensity, and the dosage of the photocatalyst. The findings of this research can be utilized as preliminary input for potential solar photocatalytic applications on color removal from dye solutions.

Original languageBritish English
Pages (from-to)102-107
Number of pages6
JournalJournal of Environmental Engineering
Issue number1
StatePublished - Jan 2005


  • Abatement and removal
  • Dyes
  • Effluents
  • Water pollution


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