Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations
The sonochemical activity of an oxygen bubble formed in an aqueous medium and oscillating under a dual-frequency excitation is studied in this paper. Several couples of frequencies are formed amongst 35, 140, 300, and 515 kHz, with a maximum acoustic amplitude of 1.5 atm. The molar yields of the eme...
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2021-02-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
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| Online Access: | http://www.ijcce.ac.ir/article_36705_95340ebbebcb35800ef1b1efaee2c08b.pdf |
| _version_ | 1818892849513496576 |
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| author | Kaouther Kerboua Oualid Hamdaoui |
| author_facet | Kaouther Kerboua Oualid Hamdaoui |
| author_sort | Kaouther Kerboua |
| collection | DOAJ |
| description | The sonochemical activity of an oxygen bubble formed in an aqueous medium and oscillating under a dual-frequency excitation is studied in this paper. Several couples of frequencies are formed amongst 35, 140, 300, and 515 kHz, with a maximum acoustic amplitude of 1.5 atm. The molar yields of the emerging oxidants are analyzed in accordance with the combined frequencies and compared to the cases of mono-frequency excitations of similar maximum amplitude, i.e., 1.5 atm. Qualitatively, passing from a mono to a dual-frequency excitation demonstrated to be with no effect on the predominant species which remain, and. However, the results exhibited a very selective quantitative evolution depending on the combined frequencies. Some couples proved to induce a negative effect and reduce the production at the single bubble level, particularly with basic frequencies of 140 and 300 kHz, while some others demonstrated a noticeable enhancement such as the couples (35, 140 kHz) and (515, 35 kHz), as compared to mono-frequency fields. |
| first_indexed | 2024-12-19T18:03:14Z |
| format | Article |
| id | doaj.art-58ed25bb397b4e3caf014d413dca8244 |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-19T18:03:14Z |
| publishDate | 2021-02-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-58ed25bb397b4e3caf014d413dca82442022-12-21T20:11:31ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862021-02-0140132333210.30492/ijcce.2019.3670536705Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency CombinationsKaouther Kerboua0Oualid Hamdaoui1Laboratory of Environmental Engineering, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar - Annaba University, P.O. Box 12, 23000 Annaba, ALGERIALaboratory of Environmental Engineering, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar - Annaba University, P.O. Box 12, 23000 Annaba, ALGERIAThe sonochemical activity of an oxygen bubble formed in an aqueous medium and oscillating under a dual-frequency excitation is studied in this paper. Several couples of frequencies are formed amongst 35, 140, 300, and 515 kHz, with a maximum acoustic amplitude of 1.5 atm. The molar yields of the emerging oxidants are analyzed in accordance with the combined frequencies and compared to the cases of mono-frequency excitations of similar maximum amplitude, i.e., 1.5 atm. Qualitatively, passing from a mono to a dual-frequency excitation demonstrated to be with no effect on the predominant species which remain, and. However, the results exhibited a very selective quantitative evolution depending on the combined frequencies. Some couples proved to induce a negative effect and reduce the production at the single bubble level, particularly with basic frequencies of 140 and 300 kHz, while some others demonstrated a noticeable enhancement such as the couples (35, 140 kHz) and (515, 35 kHz), as compared to mono-frequency fields.http://www.ijcce.ac.ir/article_36705_95340ebbebcb35800ef1b1efaee2c08b.pdfdual-frequencyoxidantssonochemical activityacoustic cavitation bubblekinetics |
| spellingShingle | Kaouther Kerboua Oualid Hamdaoui Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations Iranian Journal of Chemistry & Chemical Engineering dual-frequency oxidants sonochemical activity acoustic cavitation bubble kinetics |
| title | Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations |
| title_full | Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations |
| title_fullStr | Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations |
| title_full_unstemmed | Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations |
| title_short | Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations |
| title_sort | oxidants emergence under dual frequency sonication within single acoustic bubble effects of frequency combinations |
| topic | dual-frequency oxidants sonochemical activity acoustic cavitation bubble kinetics |
| url | http://www.ijcce.ac.ir/article_36705_95340ebbebcb35800ef1b1efaee2c08b.pdf |
| work_keys_str_mv | AT kaoutherkerboua oxidantsemergenceunderdualfrequencysonicationwithinsingleacousticbubbleeffectsoffrequencycombinations AT oualidhamdaoui oxidantsemergenceunderdualfrequencysonicationwithinsingleacousticbubbleeffectsoffrequencycombinations |