A Caltech Library Service

Ultrasonic irradiation of p-nitrophenol in aqueous solution

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.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Hoffmann, M. R.0000-0001-6495-1946
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).
Funding AgencyGrant Number
Environmental Protection Agency (EPA)R813326-01-0
Environmental Protection Agency (EPA)R-81504 -01-0
Issue or Number:9
Record Number:CaltechAUTHORS:20150813-105952810
Persistent URL:
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
Deposited By: Ruth Sustaita
Deposited On:14 Aug 2015 15:54
Last Modified:10 Nov 2021 22:21

Repository Staff Only: item control page