Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations

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Kerboua Kaouther; Hamdaoui Oualid

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Journal Paper

Paper Information

Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2021 | Volume:40 | Issue:1 Page(s): 323-332

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Title

Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations

Author(s)

Kerboua Kaouther | Hamdaoui Oualid | Issue Writer Certificate

Keywords

Dual-frequency

Oxidants

Sonochemical activity

Acoustic cavitation bubble

Kinetics

Abstract

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 𝐻 𝑂 • , 𝐻 𝑂 2• , 𝑂 and 𝑂 3. 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.

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APA: Copy

Kerboua, Kaouther, & Hamdaoui, Oualid. (2021). Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 40(1), 323-332. SID. https://sid.ir/paper/780404/en

Vancouver: Copy

Kerboua Kaouther, Hamdaoui Oualid. Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2021;40(1):323-332. Available from: https://sid.ir/paper/780404/en

IEEE: Copy

Kaouther Kerboua, and Oualid Hamdaoui, “Oxidants Emergence under Dual-Frequency Sonication within Single Acoustic Bubble: Effects of Frequency Combinations,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 40, no. 1, pp. 323–332, 2021, [Online]. Available: https://sid.ir/paper/780404/en

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