Metal Organic Frameworks (MOFs) and ultrasound: A review

Study on the influence of advanced treatment processes on the surface properties of polylactic acid for a bio-based circular economy for plastics

“…In those cavitations, chemical reactions are easily running often through new pathways and mechanism [44] , [45] , [46] . Such conditions have been proven favorable to nanomaterial synthesis in terms of shorter reaction times, smaller particle sizes and phase-selectivity [47] , [48] . Additionally, cavitations can collapse on the surface of suspended solids and the generated solvent jets modify their surface itself (mechanically) and affect its properties (surface chemistry) [49] .…”

“…Additionally, cavitations can collapse on the surface of suspended solids and the generated solvent jets modify their surface itself (mechanically) and affect its properties (surface chemistry) [49] . Obviously, ultrasonication is a very effective method for energy input in chemical reactions, which easily can be upscaled to industrial scale [47] . Ultrasounds can break down the structure of the organic compound by either creating new non-toxic molecules or facilitating their oxidation by other processes.…”

Ultrasound-Assisted Preparation Methods of Nanoparticles for Energy-Related Applications

“…Synthesis conditions can heavily affect the quality of crystals, the particle size, the surface area, and the morphology; thus, various studies have been published in an effort to optimize the reaction time, US power, solvent ratios, reagent concentration, and modulators/additives and achieve the best results in targeted applications [169,170].…”

Intensified Nanoparticle Synthesis Using Hybrid Microwave and Ultrasound Treatments: Consecutive and Concurrent Modes

“…[ 20–22 ] Collapse of the bubble is believed to be the main reason of possible physical and chemical effects to the ultrasound‐treated system, [ 3 ] Furthermore, microscopic cavitation bubbles induced by ultrasound are also presumed to be able to break larger particles to smaller ones or deagglomerate nanoparticles. [ 23 ] The facts and benefits above have motivated process intensifications on crystallization and nanomaterial synthesis using ultrasound since its frequency and intensity can be easily tuned to control its effect on the nucleation to produce finer particle. Consequently, some studies on the superiority of ultrasound assisted compared to non‐ultrasound treated crystallization [ 24,25 ] and nanoparticle synthesis [ 26–34 ] have been reported and all them concluded that ultrasound intensified process gave more stable nucleation, better structured material and finer particles.…”