A parametric review of sonochemistry: Control and augmentation of sonochemical activity in aqueous solutions

Wood, Richard J.; Lee, Judy; Bussemaker, Madeleine

doi:10.1016/j.ultsonch.2017.03.030

Cited by 230 publications

(103 citation statements)

References 255 publications

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“…[15,16] Several key parameters affecting the effectiveness of ultrasound to promote sonochemistry are:1 )solutionv iscosity; 2) the applied frequency and intensity (sometimes referred to as "power");3 )the vapor pressureo fa ny dissolved species; 4) the homogeneity/heterogeneity of the solution;5 )the presence of dissolved gasses (and the nature of the gas);a nd 6) the solution temperature (mainly through changes in the solvent/reagent vapor pressures). [14,17] For example, the type of dissolvedg as may seem innocuous, but can have ad ramatic effect on the sonochemical activity of ag iven system. [18] To illustratet his, simulations have been performed to determine the chemical and physicaln ature of cavitation events in Ar-or N 2 -saturated solutions.…”

Section: Cavitation Eventsmentioning

confidence: 99%

Ultrasound and Sonochemistry for Radical Polymerization: Sound Synthesis

McKenzie

Karimi

Ashokkumar

et al. 2019

Chemistry A European J

142

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The use of ultrasound as an external stimulus for promoting polymerization reactions has received increasing attention in recent years. In this Review article, the fundamental processes that can lead to either the homolytic cleavage of polymer chains, or the sonolysis of solvent (or other) small molecules, under the application of ultrasound are described. These reactions promote the production of reactive radicals, which can be utilized in chain‐growth radical polymerizations under the right conditions. A full historical overview of the development of ultrasound‐assisted radical polymerization is provided, with special attention given to the recently described systems that are “controlled” by methods of reversible (radical) deactivation. Perspectives are shared on what challenges still remain in polymer sonochemistry, as well as new areas that are yet to be explored.

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Section: Cavitation Eventsmentioning

confidence: 99%

Ultrasound and Sonochemistry for Radical Polymerization: Sound Synthesis

McKenzie

Karimi

Ashokkumar

et al. 2019

Chemistry A European J

142

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“…; Schaefer et al ), and sonolysis (Vecitis et al ; Campbell et al. ; Rodriguez‐Freire et al ; Wood et al ). Advanced oxidizing processes (AOPs) are discussed as some literature describes the sequential defluorination of long‐chain PFCAs (specifically PFOA), but AOPs are largely inefficient for mineralization of PFAS (Bruton and Sedlak ) and have not been successfully demonstrated to attack or mineralize the perfluoroalkyl sulfonates (PFSAs).…”

Section: Considerations For Available Pfas‐relevant Destruction Technmentioning

confidence: 99%

“…Cavitating bubbles release considerable energy in the form of heat, which is theorized to pyrolyze PFAS. Thermal pyrolysis is a physical treatment mechanism; however, the cavitation of the bubbles also creates similar reactive species as ARP mechanisms that disproportionate the water molecule (Wood et al ). Recent demonstrations of sonolysis suggest a plasma‐like reaction pathway may play a considerable role in PFAS mineralization (Wood et al ).…”

Section: Considerations For Available Pfas‐relevant Destruction Technmentioning

confidence: 99%

Understanding and Managing the Potential By‐Products of PFAS Destruction

Horst

McDonough

Ross

et al. 2020

Groundwater Monitoring Rem

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“…1,2 researched the processes of bubble formation and its oscillation, increasing the size with the next imploding bubbles; these works determined the factors such as the change in the external pressure on a separate bubble and the change in the pressure in its center, 2 the sonoluminescence availability, [8][9][10] the chemical effects of ultrasound, 11,12 the temperature increase, 2 the evaluation of a possible loss of the bubble spherical shape, 2 the influence of viscosity, and the spatial and temporal dynamics of multiple bubbles. 7 It was proved 7 that the threshold amplitude of the sound pressure needed to perform a cavitation process depends on many parameters; these include the static pressure, the sound frequency, the type of fluid, and the amount of dissolved gas and impurities.…”

Section: Scientific Workmentioning

confidence: 99%

Effect of rheological properties of materials on their treatment with ultrasonic cavitation

Bernyk¹,

Luhovskyi²,

Nazarenko³

2018

Mater. Tehnol.

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In the research, we proved that the optimum level of energy is the basis for an effective treatment of materials using ultrasonic cavitation. The key energy parameters are the pressure at the contact zone of the cavitator and material, and the speed of the contact zone movement. The main objectives of our work were to investigate the changes in the pressure components and determine their values considering the rheological parameters and the parameters of the dynamic material and cavitator. To achieve the objectives, we researched the elastic and dissipative components of rheological properties and determined their functions depending on the parameters of ultrasonic vibrations. The research methodology was based on the use of the fundamentals of the classical theory of acoustics. The mathematical description of the process was done using a model system including an acoustic apparatus and environment; this model was made by the authors. We calculated dissipation with the equations for environment motion considering two different laws of dissipation-factor changes; this was the requirement of the new model system. We proposed a new mathematical model; the researched system of the acoustic apparatus and the environment was considered as a whole. So, the elastic and dissipative parameters of the system were regulated among themselves. The selected mechanism of the regulation parameters was a system in resonance, achieved with a high-quality process of cavitation with a minimum energy consumption. We found the analytical dependence for determining the dynamic pressure on the environment with the acoustic apparatus. These dependencies provided the basis for assessing the influence of rheological properties on the treatment process using ultrasonic cavitation. Keywords: material, rheological properties, ultrasonic cavitation, energy, pressure V pri~ujo~i raziskavi so avtorji dokazali, da je optimalni energijski nivo osnova za u~inkovito obdelavo materialov z ultrazvo~no kavitacijo. Klju~na energijska parametra sta tlak v kontaktni coni kavitatorja in materiala, ter hitrost gibanja kontaktne cone. Glavni cilj raziskave je bil dolo~iti njune vrednosti ob spreminjanju tla~nih komponent, z upo{tevanjem reolo{kih parametrov in parametrov dinamike materiala in kavitatorja. Da bi dosegli cilje raziskave, so avtorji raziskovali elasti~ne in disipacijske (izgubne) komponente reolo{kih lastnosti in dolo~ili njihove funkcijsko odvisne parametre ultrazvo~nih vibracij. Raziskovalna metodologija je temeljila na uporabi temeljev klasi~ne teorije akustike. Za matemati~ni opis procesa so avtorji uporabili lastni modelni sistem akusti~ni aparat -okolje. Izra~unali so disipacijo v ena~bah za gibanje okolja z dvema razli~nima zakonoma sprememb faktorjev disipacije; to je bila zahteva novega modelnega sistema. Avtorji so predlagali nov matemati~ni model; raziskovani sistem akusti~ni aparat -okolje, ki so ga obravnavali kot celoto. Tako elasti~ni kot disipacijski parametri sistema so med seboj samoregulirani. Izbrani mehanizem parametrov reg...

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A parametric review of sonochemistry: Control and augmentation of sonochemical activity in aqueous solutions

Cited by 230 publications

References 255 publications

Ultrasound and Sonochemistry for Radical Polymerization: Sound Synthesis

Ultrasound and Sonochemistry for Radical Polymerization: Sound Synthesis

Understanding and Managing the Potential By‐Products of PFAS Destruction

Effect of rheological properties of materials on their treatment with ultrasonic cavitation

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