Water, Air, & Soil Pollution

, Volume 216, Issue 1–4, pp 117–124 | Cite as

Photocatalytic Degradation of Textile Dye and Wastewater

  • Dilek Gümüş
  • Feryal AkbalEmail author


In this study, the photocatalytic degradation of commercial azo dye (Remazol Red 133) in the presence of titanium dioxide (TiO2) suspensions as photocatalyst was investigated. The effect of various operational parameters, such as pH of dye solution and catalyst concentration on the photocatalytic degradation process, was examined. The mineralization of dye was also evaluated by measuring the chemical oxygen demand of the dye solutions. The extent of photocatalytic degradation was found to increase with increasing TiO2 concentration. For the Remazol Red dye solutions, a 120-min treatment resulted in 97.9% decolorization and 87.6% degradation at catalyst loading of 3 g/L. Experiments using real textile wastewater were also carried out. Textile wastewater degradation was enhanced at acidic conditions. The decolorization and degradation efficiencies for textile wastewater were 97.8% and 84.9% at pH 3.0, catalyst loading of 3 g/L, and treatment time of 120 min.


Photocatalysis Azo dyes Titanium dioxide Textile wastewater 


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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Engineering Faculty, Department of Environmental EngineeringOndokuz Mayıs UniversitySamsunTurkey

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