화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.35, 36-44, March, 2016
DOI10.1016/j.jiec.2015.12.008  Export Citation
Photocatalytic degradation of textile wastewater in presence of hydrogen peroxide: Effect of cerium doping titania
Azza Touati, Tijani Hammedi, Wahiba Najjar†, Zouhaier Ksibi, and Sami Sayadi1
  • Universite Tunis El Manar, Faculte des Sciences de Tunis, LR01ES08 Laboratoire de Chimie des Materiaux et Catalyse, El Manar, 2092 Tunis, Tunisie, Korea
  • 1Centre de Biotechnologie de Sfax, Laboratoire de Bioprocedes Environnementaux, B.P. 1177, 3018 Sfax, Tunisie, Tunisia
E-mail:
Ce-TiO2 catalysts synthesized through sol.gel method were explored for textile wastewater photocatalytic degradation in presence of H2O2. Synthesized materials were characterized by X-ray diffraction, Raman spectroscopy, UV-visible diffuse reflectance spectroscopy, N2 physisorption at 77 K and H2-temperature programmed reduction. Suitable amount of cerium (1%) significantly inhibits the electron.hole pairs recombination and reduces the energy gap values of the materials. 1% Ce-TiO2 catalyst demonstrated superior catalytic performances permitting a 40% and 55% of TOC and color conversions, respectively. The relationship between photocatalytic activity and physicochemical properties was discussed. Environmental impact of textile wastewater was evaluated by the bioluminescence test using the LUMIStox.
Keywords:TiO2;Ce-TiO2;Photocatalytic degradation;H2O2;Textile wastewater
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