Research on Chemical Intermediates

, Volume 42, Issue 3, pp 2461–2471 | Cite as

Photocatalytic decolorization of reactive red 198 dye by a TiO2–activated carbon nano-composite derived from the sol–gel method



In this research, a TiO2–activated carbon nano-composite was prepared by a sol–gel method and characterized by XRD, FE-SEM, EDS, FTIR, BET surface area, photoluminescence spectroscopy and UV–Vis diffuse reflectance spectroscopy. The photocatalytic activity of the nano-composite was evaluated through degradation of reactive red 198 (RR 198) under UV light, and was compared to unsupported TiO2. The XRD result indicated that the TiO2 nano-composite contained only anatase phase. The surface area of the TiO2 increased from 48 to 100 m2/g through the fabrication of the nano-composite. The photocatalytic results indicated that the RR 198 was decolorized around 42 and 38 % during a 210-min irradiation period in the presence of nano-composite and TiO2, respectively. It means that nano-composite enhanced the photocatalytic activity of the TiO2 nano-particles. After 20 h of irradiation in the presence of the nano-composite, 97 % of RR 198 had degraded.


TiO2 Nano-composite Photocatalytic Reactive red 198 


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Faculty of Environmental Science, Tonekabon BranchIslamic Azad UniversityTonekabonIran
  2. 2.Faculty of Materials Science and EngineeringMaleke Ashtar University of TechnologyIsfahan, ShahinshahrIran

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