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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > April  >
In the Laboratory
A Photochemical Reactor for the Study of Kinetics and Adsorption Phenomena
J. A. Poce-Fatou, M. L. A. Gil, R. Alcántara, C. Botella, and J. Martín
Departamento de Química Física, Universidad de Cádiz Facultad de Ciencias, 11510 Puerto Real (Cádiz), Spain
Cover
April 2004
Vol. 81 No. 4
p. 537
Abstract
This article describes the design of a photochemical reactor intended to carry out experiments illustrating the fundamentals of heterogeneous photochemistry. The photodegradation kinetics of brilliant green (C27H33N2•HSO4) in a TiO2 dispersion under near-UV radiation is presented as a simple experimental example of the use of this reactor, intended for postgraduate students of physical chemistry. An actinometry experiment, using a standard chemical actinometer, potassium ferrioxalate, is discussed. Several additional suggestions have been made to extend the use of this reactor for educational purposes, for example, the study of the influence of surfactants on the photodegradation of dyes with low solubility such as malachite green.
Supplement
Comments and suggestions for the experiment and details of the actinometry experiment are available.
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*  Citation
 Poce-Fatou, J. A.; Gil, M. L. A.; Alcántara, R.; Botella, C.; Martín, J. J. Chem. Educ. 2004 81 537.
*  Keywords
 Dyes / Pigments; Kinetics; Laboratory Equipment / Apparatus; Photochemistry; Physical Chemistry
*  History
 Created:
Last Updated:		 March 3, 2004
February 23, 2005
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