Influence of pH on the photocatalytic activity of ZnO nanoparticles

  • Iraj Kazeminezhad
  • Azar Sadollahkhani


In this study, ZnO nanoparticles were fabricated by co-precipitation method. The synthesized nanoparticles possessed monodispersity with the average size 20–30 nm. Since the industrial effluents may not be at neutral pH, the effect of pH on the rate of degradation is important and need to be considered. In order to investigate the effect of pH on ZnO nanoparticles photocatalytic activity, the photocatalytic degradation of Rose Bengal, Methylene blue, and Bromocresol green dyes, was studied with different pH values. It was observed that the adsorption of the dyes onto ZnO nanoparticles surface is strongly dependent on the pH of the solution which plays an important role in photocatalytic degradation.


Methylene Blue Photocatalytic Activity Photocatalytic Degradation Calcination Temperature Rose Bengal 
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.



The authors would like to thank Shahid Chamran University of Ahvaz for financial support.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Nanotechnology Lab, Department of PhysicsShahid Chamran University of AhvazAhvazIran

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