Photocatalytic Degradation of Textile Dye and Wastewater

Gumus D., Akbal F.

WATER AIR AND SOIL POLLUTION, cilt.216, sa.1-4, ss.117-124, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 216 Sayı: 1-4
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1007/s11270-010-0520-z
  • Dergi Adı: WATER AIR AND SOIL POLLUTION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.117-124
  • Anahtar Kelimeler: Photocatalysis, Azo dyes, Titanium dioxide, Textile wastewater, AZO-DYE, AQUEOUS SUSPENSIONS, TITANIUM-DIOXIDE, SOLAR LIGHT, DECOLORIZATION, TIO2, PARAMETERS, MINERALIZATION, ADSORPTION, UV/TIO2
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

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.