Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF)
Due to the tunability in mass transfer, solvation and solubility, gas-expanded liquids show advantages over traditional organic solvents in many characteristics. Ultrasonication is a commonly used method to promote heat and mass transfer. The introduction of ultrasonic technology into the gas-expand...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-10-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417721002558 |
| _version_ | 1819043134289477632 |
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| author | Hanyang Gao Kunkun Pei Dong Lei Guoxin Hu Yan Chao Aihua Meng Hongcheng Wang Wei Shentu |
| author_facet | Hanyang Gao Kunkun Pei Dong Lei Guoxin Hu Yan Chao Aihua Meng Hongcheng Wang Wei Shentu |
| author_sort | Hanyang Gao |
| collection | DOAJ |
| description | Due to the tunability in mass transfer, solvation and solubility, gas-expanded liquids show advantages over traditional organic solvents in many characteristics. Ultrasonication is a commonly used method to promote heat and mass transfer. The introduction of ultrasonic technology into the gas-expanded liquid system can promote the polymerization of polymer monomers, enhance extraction efficiency, and control the growth size of nanocrystals, etc. Although acoustic cavitation has been extensively explored in aqueous solutions, there are still few studies on cavitation in organic liquids, especially in gas-expanded liquid systems. In this article, the development of cavitation bubble cloud structure in CO2-expanded N, N-dimethylformamide (DMF) was observed by a high-speed camera, and the cavitation intensity was recorded using a spherical hydrophone. It was found that the magnitude of the transient cavitation energy was not only related to input power, but also closely related to CO2 content. The combination of ultrasound (causing a rapid alternation of gas solubility) and gas-expanded liquid system (causing a decrease in viscosity and surface tension of liquids) is expected to provide a perfect platform for high-speed mass transfer. |
| first_indexed | 2024-12-21T09:51:57Z |
| format | Article |
| id | doaj.art-021cb3e83a0a46beb5f56e38a857132e |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-12-21T09:51:57Z |
| publishDate | 2021-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-021cb3e83a0a46beb5f56e38a857132e2022-12-21T19:08:09ZengElsevierUltrasonics Sonochemistry1350-41772021-10-0178105713Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF)Hanyang Gao0Kunkun Pei1Dong Lei2Guoxin Hu3Yan Chao4Aihua Meng5Hongcheng Wang6Wei Shentu7School of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, China; Corresponding author.School of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, ChinaSchool of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, ChinaSchool of Mechanical and Power Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, ChinaSchool of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, ChinaSchool of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, ChinaSchool of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, ChinaSchool of Mechanical Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, 310018 Hangzhou, Zhejiang Province, ChinaDue to the tunability in mass transfer, solvation and solubility, gas-expanded liquids show advantages over traditional organic solvents in many characteristics. Ultrasonication is a commonly used method to promote heat and mass transfer. The introduction of ultrasonic technology into the gas-expanded liquid system can promote the polymerization of polymer monomers, enhance extraction efficiency, and control the growth size of nanocrystals, etc. Although acoustic cavitation has been extensively explored in aqueous solutions, there are still few studies on cavitation in organic liquids, especially in gas-expanded liquid systems. In this article, the development of cavitation bubble cloud structure in CO2-expanded N, N-dimethylformamide (DMF) was observed by a high-speed camera, and the cavitation intensity was recorded using a spherical hydrophone. It was found that the magnitude of the transient cavitation energy was not only related to input power, but also closely related to CO2 content. The combination of ultrasound (causing a rapid alternation of gas solubility) and gas-expanded liquid system (causing a decrease in viscosity and surface tension of liquids) is expected to provide a perfect platform for high-speed mass transfer.http://www.sciencedirect.com/science/article/pii/S1350417721002558CO2-expanded DMFHigh-pressure ultrasonicationAcoustic spectrumCavitation bubble cloudHydrophoneHigh-speed camera |
| spellingShingle | Hanyang Gao Kunkun Pei Dong Lei Guoxin Hu Yan Chao Aihua Meng Hongcheng Wang Wei Shentu Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF) Ultrasonics Sonochemistry CO2-expanded DMF High-pressure ultrasonication Acoustic spectrum Cavitation bubble cloud Hydrophone High-speed camera |
| title | Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF) |
| title_full | Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF) |
| title_fullStr | Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF) |
| title_full_unstemmed | Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF) |
| title_short | Ultrasonic cavitation in CO2-expanded N, N-dimethylformamide (DMF) |
| title_sort | ultrasonic cavitation in co2 expanded n n dimethylformamide dmf |
| topic | CO2-expanded DMF High-pressure ultrasonication Acoustic spectrum Cavitation bubble cloud Hydrophone High-speed camera |
| url | http://www.sciencedirect.com/science/article/pii/S1350417721002558 |
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