| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Application of a “Black Body” Like Reactor for Measurements of Quantum Yields ofPhotochemical Reactions in Heterogeneous Systems
|
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - We report for the first time an experimental application of the concept of a “black body” like reactor tomeasure quantum yields (Φ) of photochemical reactions in liquid−solid heterogeneous systems. A majoradvantage of this new method is its simplicity since the fractions of reflected and transmitted light are negligibledue to reactor geometry and high optical density of the heterogeneous systems. The average quantum yieldof a test reaction (phenol photodegradation) over TiO2 (Degussa P25) as determined by this method was0.14, identical to the quantum yield measured earlier for this same reaction under similar conditions by Salinaroand Serpone [Pure Appl. Chem. 1999, 71, 303]. We also report the quantum yield of phenol photodegradationover N-doped TiO2 during photoexcitation at the fundamental absorption band (λ = 365 nm; Φ = 0.12) andat the N-doping induced extrinsic absorption band (λ = 436 nm; Φ = 0.08) of the photocatalyst.
|
| article type
| |
| is part of this journal
| |
