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RESEARCH PRODUCT
Rate of photon absorption and turnover number: two parameters for the comparison of heterogeneous photocatalytic systems in a quantitative way
Vincenzo AugugliaroLeonardo PalmisanoMario Schiavellosubject
AnatasePhotonAqueous solutionChemistryInorganic chemistryAnalytical chemistryQuantum yieldTurnover numberInorganic ChemistryMaterials ChemistryPhotocatalysisPhysical and Theoretical ChemistryPhotodegradationAbsorption (electromagnetic radiation)description
Abstract In order to correctly compare the performance of different photocatalytic systems using polycrystalline semiconductor oxides, two parameters are proposed: the rate of photon absorption (rpa) and the turnover number (tn). From these quantities the quantum yield (qy), which indicates the efficiency of the absorbed photons for promoting a reaction event, can be determined. The phenol photodegradation reaction, carried out in aqueous dispersions of polycrystalline TiO2 (anatase) of different preparation methods and sources, has been used as “test reaction” in order to determine the tn, rpa and qy values.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-05-01 | Coordination Chemistry Reviews |