What is the mechanism of TiO2/UV application's in removal colour pollutants from aqueous?

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Emmanuel Richaud

photocatalytic mechanism in which electron are transfered fro the HOMO to the LUMO of TiO2

then H2O reacts in the emptied HUMO : H2O --> HO° + H+

and O2 reacts in the LUMO with the electron : O2 + e- --> O2°-

both HO° and O2°- are very oxidizing species "destroying" any organic molecules

regards

Seyed Mahmoud Mehdinia

Thanks a lot dear Dr.

Motasem Saidan

Hi,

Just search in the Advanced Oxidation Process and you will find all mechnaisms