Chinese Journal of Catalysis ›› 2024, Vol. 61: 37-53.DOI: 10.1016/S1872-2067(24)60028-8

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Unveiling the "sono-physico-chemical" essence: Cavitation and vibration effects in ultrasound-assisted processes

Wenyuan Liua, Jun Lia, Zhuan Chena, Zhiyan Lianga, Bo Yanga, Kun Dua, Jiangchen Fua, Ali Reza Mahjoubb, Mingyang Xinga,c,*()   

  1. aKey Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
    bDepartment of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran
    cShanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization, East China University of Science and Technology, Shanghai 200237, China
  • Received:2024-02-13 Accepted:2024-04-07 Online:2024-06-18 Published:2024-06-20
  • Contact: * E-mail: mingyangxing@ecust.edu.cn (M. Xing).
  • About author:Mingyang Xing (School of Chemistry and Molecular Engineering, East China University of Science and Technology) is the Professor, doctoral supervisor in the School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST). He obtained his Doctoral Degree in 2012 from ECUST, and then worked at University of California, Riverside as a visiting scholar for one year. His research focuses on the design and preparation of functional nanomaterials and applications to the environmental fields, including (1) Enrichment and degradation of organic pollutants; (2) Recycling of organic wastewater: directed conversion of organic pollutants, hydrogen production of wastewater; (3) Seawater resource: seawater desalination, seawater hydrogen production, etc; (4) Resource of greenhouse gases. He has published more than 150 papers in SCI journals in these areas, which have been cited more than 15000 times (H-index: 68).
  • Supported by:
    National Natural Science Foundation of China(22325602);National Natural Science Foundation of China(22176060);Program of Shanghai Academic/Technology Research Leader(23XD1421000)

Abstract:

Ultrasound-assisted processes, widely applied in cleaning, synthesis, and catalysis, exhibit significant application potential, with their impact rooted in the interplay between ultrasound and the physicochemical properties of substances. Therefore, it is emphasized here to understand these processes through a "sono-physico-chemical" angle for a deeper comprehension of reaction mechanisms and broader application. Highlighting cavitation and vibration effects, the ultrasound-assisted chemistry processes are categorized. Cavitation is emphasized for pollutant degradation, while vibration is primarily applied for inducing the piezoelectric effect. Additionally, points that are easy to be ignored in the current ultrasonic assisted catalysis process are proposed, such as synergistic index calculations, cost assessments, etc. Furthermore, the latest innovative application of ultrasonic assisted process in wastewater recycling is introduced. Finally, the review advocates for the future integration of ultrasound-assisted processes into new catalytic processes or application scenarios.

Key words: Ultrasonic assisted process, Cavitation effect, Vibration effect, Piezoelectric effect, Pollutant degradation