Photocatalytic Degradation of Water Pollutants Using Nano-TiO2

  • R. Vinu
  • Giridhar Madras
Part of the Green Energy and Technology book series (GREEN)


This review discusses the utilization of photocatalysis for the degradation of water pollutants. Emphasis is placed on TiO2 nanoparticles as a benchmark photocatalyst for the destruction of microorganisms and the degradation of a wide variety of organic compounds like phenolics, dyes, pesticides and pharmaceuticals. The mechanism of photocatalytic degradation is elucidated, underlining the importance of reaction kinetics for the efficient design of the processes. The effects of different reaction parameters on photocatalytic degradation are discussed. Surface modification of TiO2 for visible light response by doping and heterostructuring is outlined. Finally, the challenges in the implementation of this technology for “real” waste water systems are summarized with a few attainable goals.


Methylene Blue Photocatalytic Activity Degradation Rate Photocatalytic Degradation Rate Coefficient 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag London Limited 2011

Authors and Affiliations

  1. 1.Department of Chemical EngineeringIndian Institute of ScienceBangaloreIndia

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