Kotronarou, A. and Mills, G. and Hoffmann, M. R. (1991) Ultrasonic irradiation of p-nitrophenol in aqueous solution. Journal of Physical Chemistry, 95 (9). pp. 3630-3638. ISSN 0022-3654. doi:10.1021/j100162a037. https://resolver.caltech.edu/CaltechAUTHORS:20150813-105952810
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Abstract
The kinetics and mechanism of the sonochemical reactions of p-nitrophenol have been investigated in oxygenated aqueous solutions. In the presence of ultrasound (20 kHz, 84 W) p-nitrophenol was degraded primarily by denitration to yield NO_2^-, NO_3^-, benzoquinone, hydroquinone, 4-nitrocatechol, formate, and oxalate. These reaction products and the kinetic observations are consistent with a model involving high-temperature reactions of p-nitrophenol in the interfacial region of cavitation bubbles. The main reaction pathway appears to be carbon-nitrogen bond cleavage. Reaction with hydroxyl radical provides a secondary reaction channel. The average effective temperature of the interfacial region surrounding the cavitation bubbles was estimated to be T ≃ 800 K.
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| Additional Information: | © 1991 American Chemical Society. Received: August 17, 1990; In Final Form: November 19, 1990. Publication Date: May 1991. This research was supported by the US. EPA Office of Exploratory Research (Grant Nos. R813326-01-0 and R-815041-01-0). | |||||||||
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| Issue or Number: | 9 | |||||||||
| DOI: | 10.1021/j100162a037 | |||||||||
| Record Number: | CaltechAUTHORS:20150813-105952810 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150813-105952810 | |||||||||
| Official Citation: | Ultrasonic irradiation of p-nitrophenol in aqueous solution A. Kotronarou, G. Mills, and M. R. Hoffmann The Journal of Physical Chemistry 1991 95 (9), 3630-3638 DOI: 10.1021/j100162a037 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 59483 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 14 Aug 2015 15:54 | |||||||||
| Last Modified: | 10 Nov 2021 22:21 |
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