Some reactors used for photocatalytic applications are adapted from solar collectors such as PTC or CPC.
I have read in some reviews that light intensity might hinder photocatalytic performance promoting hole-electron faster recombination. So has anyone read something more contundent about this topic that I could be directed to?
These two papers finding's are contradcitory and I would not like to end-up applying something meaningless, such as a sollar concentrator if it does help to photocatalysis per se.
10.1016/j.solener.2015.02.034 they tested CPCs with different CR (1-2), CR 2 did outperformed CR 1. They however worked with carbaryl, which can also be photodegraded alone without the need of photocatalysis. This was not a slurry reactor, so carbaryl might have absorbed a lot more UV than the TiO2 which was supported on glass substrates insided the reactor.
10.1016/j.cej.2018.02.068 here they tested a CPC vs a tube reactor with no concentration, both slurry. Tube reactor outperformed the CPC, in part because it was able to operate with higher working volumes in the same space.
Felipe,
check these papers:
Article Wastewater treatment by means of advanced oxidation processe...
Article Wastewater treatment by means of Advanced Oxidation Processe...
regards,
G
Thank you Dr. Boczkaj. I do not think these papers mention anything about hole-electron recombination in photocatalysts as a function of light intensity. Very thorough though.
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