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Photoelectrochemical Degradation of 4-Chlorocatechol at TiO_2 Electrodes: Comparison between Sorption and Photoreactivity

Kesselman, Janet M. and Lewis, Nathan S. and Hoffmann, Michael R. (1997) Photoelectrochemical Degradation of 4-Chlorocatechol at TiO_2 Electrodes: Comparison between Sorption and Photoreactivity. Environmental Science and Technology, 31 (8). pp. 2298-2302. ISSN 0013-936X. https://resolver.caltech.edu/CaltechAUTHORS:20150814-081851276

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Abstract

The TiO_2-catalyzed photodegradation of a strongly adsorbing substrate, 4-chlorocatechol, has been investigated as a function of solution concentration and pH at illuminated polycrystalline TiO_2 electrodes operated at a constant current density. The results are compared to the previously determined sorption behavior of 4-chlorocatechol. The initial rates of 4-chlorocatechol photodegradation measured at pH 3, 5, and 8 and solution concentrations of 20, 50, and 200 μM show a linear correlation with the concentration of the sorbed substrate.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/es960888kDOIArticle
http://pubs.acs.org/doi/abs/10.1021/es960888kPublisherArticle
ORCID:
AuthorORCID
Lewis, Nathan S.0000-0001-5245-0538
Hoffmann, Michael R.0000-0001-6495-1946
Additional Information:© 1997 American Chemical Society. Received for review October 14, 1996. Revised manuscript received April 10, 1997. Accepted April 21, 1997. Publication Date (Web): July 30, 1997. We are grateful to ARPA and ONR (NAV 5 HFMN N0001492J1901) for financial support. J.M.K. acknowledges NSF for a predoctoral fellowship. We would also like to acknowledge our earlier collaboration with Dr. Scot T. Martin.
Funders:
Funding AgencyGrant Number
Advanced Research Projects Agency (ARPA)UNSPECIFIED
Office of Naval Research (ONR)NAV 5 HFMN N0001492J1901
NSF Predoctoral FellowshipUNSPECIFIED
Issue or Number:8
Record Number:CaltechAUTHORS:20150814-081851276
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150814-081851276
Official Citation:Photoelectrochemical Degradation of 4-Chlorocatechol at TiO2 Electrodes:  Comparison between Sorption and Photoreactivity Janet M. Kesselman,Nathan S. Lewis, and, and Michael R. Hoffmann* Environmental Science & Technology 1997 31 (8), 2298-2302 DOI: 10.1021/es960888k
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59517
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:14 Aug 2015 16:55
Last Modified:03 Mar 2020 13:01

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