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Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties

The effects of ultrasonic conditions and physicochemical properties on the synergistic degradation in synthetic solution were investigated. A wide range of ultrasound frequencies, including 35, 170, 300, 500 and 700 kHz, and ultrasonic power densities, including 11.3, 22.5 and 31.5 W/L were used. It...

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Main Authors: Kim, K., Cho, E., Thokchom, B., Cui, M., Jang, M., Khim, J.
Format: Article
Language:English
Published: Elsevier 2015
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/14037/1/Synergistic_sonoelectrochemical_removal_of_substituted_phenols.pdf
http://eprints.um.edu.my/14037/
http://www.sciencedirect.com/science/article/pii/S1350417714003381
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spelling my.um.eprints.140372015-09-03T05:00:31Z http://eprints.um.edu.my/14037/ Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties Kim, K. Cho, E. Thokchom, B. Cui, M. Jang, M. Khim, J. T Technology (General) TA Engineering (General). Civil engineering (General) The effects of ultrasonic conditions and physicochemical properties on the synergistic degradation in synthetic solution were investigated. A wide range of ultrasound frequencies, including 35, 170, 300, 500 and 700 kHz, and ultrasonic power densities, including 11.3, 22.5 and 31.5 W/L were used. It was revealed that the physical effect of ultrasound plays a major role in synergistic mechanism and 35 kHz was found to be the most effective frequency due to its more vigorous physical effect induced by high implosive energy released from collapse of cavitation bubbles. The highest ultrasonic power density (31.5 W/L) showed the highest synergy index as it increases the number of cavitation bubbles and the energy released when they collapse. The synergy indexes of various substituted phenols under identical condition were investigated. These results were correlated with physicochemical properties, namely octanol water partition coefficient (Log K-ow), water solubility (S-w), Henry's law constant (K-H) and water diffusivity (D-w). Among these parameters, Log K-ow and D-w were found to have substantial effects on synergy indexes. (C) 2014 Elsevier B.V. All rights reserved. Elsevier 2015-05 Article PeerReviewed application/pdf en http://eprints.um.edu.my/14037/1/Synergistic_sonoelectrochemical_removal_of_substituted_phenols.pdf Kim, K. and Cho, E. and Thokchom, B. and Cui, M. and Jang, M. and Khim, J. (2015) Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties. Ultrasonics Sonochemistry, 24. pp. 172-177. ISSN 1350-4177 http://www.sciencedirect.com/science/article/pii/S1350417714003381 doi:10.1016/j.ultsonch.2014.11.004
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Kim, K.
Cho, E.
Thokchom, B.
Cui, M.
Jang, M.
Khim, J.
Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties
description The effects of ultrasonic conditions and physicochemical properties on the synergistic degradation in synthetic solution were investigated. A wide range of ultrasound frequencies, including 35, 170, 300, 500 and 700 kHz, and ultrasonic power densities, including 11.3, 22.5 and 31.5 W/L were used. It was revealed that the physical effect of ultrasound plays a major role in synergistic mechanism and 35 kHz was found to be the most effective frequency due to its more vigorous physical effect induced by high implosive energy released from collapse of cavitation bubbles. The highest ultrasonic power density (31.5 W/L) showed the highest synergy index as it increases the number of cavitation bubbles and the energy released when they collapse. The synergy indexes of various substituted phenols under identical condition were investigated. These results were correlated with physicochemical properties, namely octanol water partition coefficient (Log K-ow), water solubility (S-w), Henry's law constant (K-H) and water diffusivity (D-w). Among these parameters, Log K-ow and D-w were found to have substantial effects on synergy indexes. (C) 2014 Elsevier B.V. All rights reserved.
format Article
author Kim, K.
Cho, E.
Thokchom, B.
Cui, M.
Jang, M.
Khim, J.
author_facet Kim, K.
Cho, E.
Thokchom, B.
Cui, M.
Jang, M.
Khim, J.
author_sort Kim, K.
title Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties
title_short Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties
title_full Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties
title_fullStr Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties
title_full_unstemmed Synergistic sonoelectrochemical removal of substituted phenols: Implications of ultrasonic parameters and physicochemical properties
title_sort synergistic sonoelectrochemical removal of substituted phenols: implications of ultrasonic parameters and physicochemical properties
publisher Elsevier
publishDate 2015
url http://eprints.um.edu.my/14037/1/Synergistic_sonoelectrochemical_removal_of_substituted_phenols.pdf
http://eprints.um.edu.my/14037/
http://www.sciencedirect.com/science/article/pii/S1350417714003381
_version_ 1643689717896577024
score 13.211869

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