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International Journal of Photoenergy
Volume 2011, Article ID 596710, 7 pages
Research Article

Interdigitated Electrophotocatalytic Cell for Water Purification

Department of Chemical Engineering and the Grand Water Research Institute, Technion, Haifa 32000, Israel

Received 30 January 2011; Accepted 13 April 2011

Academic Editor: Peter Robertson

Copyright © 2011 Guy Shemer and Yaron Paz. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The preparation, characterization, and performance of an electrophotocatalytic cell, made of low-cost, planar interdigitated electrodes is reported hereby. The operation of the cell under small positive bias was demonstrated by photocatalytically degrading the dye rhodamine 6G in solution as well as by monitoring the degradation of self-assembled monolayer chemisorbed on the TiO2 electrode. Results point out to the importance of activated oxygen species formed in the process and suggest that the short distance between the two electrodes provides a way to utilize the activated oxygen species formed at the negatively biased electrode.