Ultrasonic cavitation-induced radical processes for tetracycline degradation and Cr(VI) reduction: Highlighting the pivotal role of Cr(V) intermediates.
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| Názov: | Ultrasonic cavitation-induced radical processes for tetracycline degradation and Cr(VI) reduction: Highlighting the pivotal role of Cr(V) intermediates. |
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| Autori: | Li D; College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002 Hubei, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China., Luo B; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China., Hong F; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China., Li R; College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002 Hubei, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China., Lv Y; College of Civil Engineering & Architecture, China Three Gorges University, Yichang 443002 Hubei, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China. Electronic address: yuanfei@whu.edu.cn., Huang Y; College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002 Hubei, China; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China., Huang D; Engineering Research Center of Eco-environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang 443002 Hubei, China. Electronic address: huangdi@ctgu.edu.cn. |
| Zdroj: | Ultrasonics sonochemistry [Ultrason Sonochem] 2026 Jan; Vol. 124, pp. 107713. Date of Electronic Publication: 2025 Dec 09. |
| Spôsob vydávania: | Journal Article |
| Jazyk: | English |
| Informácie o časopise: | Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 9433356 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2828 (Electronic) Linking ISSN: 13504177 NLM ISO Abbreviation: Ultrason Sonochem Subsets: MEDLINE |
| Imprint Name(s): | Publication: Amsterdam : Elsevier Science Original Publication: Oxford : Butterworth Heinemann, c1994- |
| Výrazy zo slovníka MeSH: | Ultrasonics*/methods , Tetracycline*/metabolism , Chromium*/metabolism , Water Pollutants, Chemical*/metabolism, Water Purification/methods ; Free Radicals/metabolism ; Temperature |
| Abstrakt: | Tetracycline (TC) and Cr(VI) often co-occur in wastewaters, where their synergistic toxicity and contrasting redox behaviors complicate remediation. In this study, ultrasonic cavitation was employed as a employed as a green and efficient process to simultaneously degrade TC and reduce Cr(VI). Under optimal conditions (20 kHz, 12 mm probe, 131 μm amplitude, 308 K), TC and Cr(VI) removal reached 62.9 % and 70.8 % within 2 h, respectively. The synergistic mechanism was elucidated through radical quenching, electron paramagnetic resonance (EPR) spectroscopy, and complementary computational fluid dynamics (CFD) simulations and density functional theory (DFT) calculations. Cavitation bubble collapse generated both oxidative and reductive radicals, enabling concurrent oxidation and reduction. Radical identification showed that ·O (Copyright © 2025 The Author(s). Published by Elsevier B.V. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| References: | Nat Biomed Eng. 2023 Mar;7(3):298-312. (PMID: 36550302) Nat Commun. 2021 Jun 9;12(1):3508. (PMID: 34108484) Environ Sci Technol. 2020 Jan 21;54(2):1157-1166. (PMID: 31858777) Environ Sci Technol. 2010 Oct 1;44(19):7232-7. (PMID: 20408538) Environ Sci Technol. 2023 Dec 12;57(49):20871-20880. (PMID: 38029317) Environ Sci Technol. 2025 Jan 28;59(3):1875-1886. (PMID: 39800992) Environ Sci Technol. 2018 Nov 6;52(21):12602-12611. (PMID: 30351032) Environ Sci Technol. 2025 Mar 18;59(10):5214-5222. (PMID: 39904612) Ultrason Sonochem. 2017 Mar;35(Pt A):449-457. (PMID: 27810164) Signal Transduct Target Ther. 2025 Sep 19;10(1):303. (PMID: 40968134) Environ Sci Technol. 2015 Oct 20;49(20):12363-71. (PMID: 26384045) ACS Nano. 2019 Oct 22;13(10):11283-11293. (PMID: 31525947) Environ Sci Technol. 2022 Mar 15;56(6):3552-3563. (PMID: 35212521) |
| Contributed Indexing: | Keywords: (1)O(2) generation; CFD simulation; Cr(V) intermediate; EPR-spin trapping analysis; Simultaneous redox transformation; Ultrasonic cavitation |
| Substance Nomenclature: | F8VB5M810T (Tetracycline) 0R0008Q3JB (Chromium) 0 (Water Pollutants, Chemical) 0 (Free Radicals) |
| Entry Date(s): | Date Created: 20251211 Date Completed: 20260306 Latest Revision: 20260306 |
| Update Code: | 20260306 |
| PubMed Central ID: | PMC12753498 |
| DOI: | 10.1016/j.ultsonch.2025.107713 |
| PMID: | 41380544 |
| Databáza: | MEDLINE |
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Nájsť tento článok vo Web of Science | Abstrakt: | Tetracycline (TC) and Cr(VI) often co-occur in wastewaters, where their synergistic toxicity and contrasting redox behaviors complicate remediation. In this study, ultrasonic cavitation was employed as a employed as a green and efficient process to simultaneously degrade TC and reduce Cr(VI). Under optimal conditions (20 kHz, 12 mm probe, 131 μm amplitude, 308 K), TC and Cr(VI) removal reached 62.9 % and 70.8 % within 2 h, respectively. The synergistic mechanism was elucidated through radical quenching, electron paramagnetic resonance (EPR) spectroscopy, and complementary computational fluid dynamics (CFD) simulations and density functional theory (DFT) calculations. Cavitation bubble collapse generated both oxidative and reductive radicals, enabling concurrent oxidation and reduction. Radical identification showed that ·O<subscript>2</subscript><sup>-</sup> and ·H were the dominant reductants responsible for Cr(VI) reduction, whereas <sup>1</sup>O<subscript>2</subscript> and ·OH primarily controlled TC degradation. CFD simulations further demonstrated that mechanical energy, internal energy, and bubble growth rate during cavitation were positively correlated with radical generation. Importantly, experimental evidence suggested that Cr(VI) promoted the conversion of ·O<subscript>2</subscript><sup>-</sup> into <sup>1</sup>O<subscript>2</subscript>, establishing a coupled radical pathway that linked metal detoxification with antibiotic degradation. Furthermore, Cr(V) intermediates were detected as key transient species, exhibiting strong oxidative capacity toward TC and accelerating Cr(VI) reduction. Complementary DFT calculations confirmed that the coexistence of TC and ·H markedly lowered the energy barrier of Cr(VI) reduction. Overall, this work provides new mechanistic insight into radical transformation and metal-organic coupling under ultrasonic cavitation, and highlights its potential as a sustainable strategy for treating waters co-contaminated with metals and antibiotics.<br /> (Copyright © 2025 The Author(s). Published by Elsevier B.V. All rights reserved.) |
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| ISSN: | 1873-2828 |
| DOI: | 10.1016/j.ultsonch.2025.107713 |