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Ultrasonic irradiation of p-nitrophenol in aqueous solution
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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Cited by
Sonochemistry: Environmental Science and Engineering Applications
Adewuyi, Y. G. (2001) · Industrial & Engineering Chemistry Research · doi:10.1021/ie010096l · Cited by 1,049
A review of imperative technologies for wastewater treatment II: hybrid methods
Gogate, P. R., & Pandit, A. B. (2004) · Advances in Environmental Research · doi:10.1016/s1093-0191(03)00031-5 · Cited by 769
Trojanowicz, M., Bojanowska-Czajka, A., Bartosiewicz, I., & Kulisa, K. (2018) · Chemical Engineering Journal · doi:10.1016/j.cej.2017.10.153 · Cited by 550
Chowdhury, P., & Viraraghavan, T. (2009) · Science of The Total Environment · doi:10.1016/j.scitotenv.2008.12.031 · Cited by 319
HYDRODYNAMIC CAVITATION REACTORS: A STATE OF THE ART REVIEW
Gogate, P. R., & Pandit, A. B. (2001) · Reviews in Chemical Engineering · doi:10.1515/revce.2001.17.1.1 · Cited by 289
Metadata
- Authors
- Kotronarou, A., Mills, G., & Hoffmann, M. R.
- Venue
- The Journal of Physical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 1991-05
- Volume
- 95
- Issue
- 9
- Pages
- 3630-3638
- ISSN
- 0022-3654 (ISSN-L)
- 1541-5740
- OpenAlex
- W2024250808
- Cited by
- 329
- References
- 0
- FWCI
- 3.01
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Ultrasonic irradiation of p-nitrophenol in aqueous solution. https://app.cochat.ai/papers/10.1021/j100162a037
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- Kotronarou, A., Mills, G., & Hoffmann, M. R. (1991). Ultrasonic irradiation of p-nitrophenol in aqueous solution. The Journal of Physical Chemistry. https://doi.org/10.1021/j100162a037
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