Quantum yield of heterogeneous photocatalytic systems: Further application of an experimental method for determining the absorbed photon flow

Quantum yield of heterogeneous photocatalytic systems: Further application of an experimental... The present paper reports additional results obtained with a method already proposed and used to measure absorbed and reflected photons during the occurrence of heterogeneous process carried out in the presence of a polycrystalline semiconductor solid suspended in aqueous solution. The limit of validity of the method is discussed and the influence of various parameters is reported. Moreover, the quantum yield for a probe photoreaction, i.e. 4-nitrophenol photo-oxidation carried out in aqueous suspensions containing various amounts of polycrystalline TiO2 (anatase) of different particle sizes, was determined by using monochromatic (λ=366 nm) or polychromatic light (λ=300–400 nm). The results indicated that the quantum yield was higher when light in the range 300–400 nm was used. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Quantum yield of heterogeneous photocatalytic systems: Further application of an experimental method for determining the absorbed photon flow

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Publisher
Springer Netherlands
Copyright
Copyright © 1999 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856799X00310
Publisher site
See Article on Publisher Site

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