Utrasonic topic: "What is Sonochemistry?"
Sonochemistry is the application of ultrasound to chemical reactions and processes. SOnication is used to intensify chemical reactions such as synthesis and catalysis. When intense ultrasound waves are couples into liquids, the phenomenon of acoustic cavitation occurs. Ultrasonic cavitation improves mass transfer between reactants, speeds up the reaction and/or allows to change the chemicals pathway.
Learn more about Hielscher ultrasonic laboratory and industrial devices and how they are used in manifold sonochemical processes!
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Industrial waste waters are often heavily acidified due to the excessive use of sulphuric acid. Acidified wastewater containing heavy metals are commonly treated by chemical precipitation after coagulation and flocculation. Ultrasonic conditioning before the flotation resulted in a significant…https://www.hielscher.com/ultrasonic-effects-on-precipitation-and-froth-flotation.htm
Ultrasonically induced and intensified reactions offer a facile, precisely controllable and versatile synthesis method for the production of light-activated materials, which often cannot prepared by conventional techniques. The ultrasonic crystallization and precipitation of perovskite crystals is a highly effective…https://www.hielscher.com/perovskite-synthesis-by-ultrasonication.htm
Marine fuels are affected by new regulations, which require a sulphur content of 0.5%m/m or less. Ultrasound-assisted oxidative desulfurization () is an established method that accelerates the oxidation reaction and is an economical and safe process. UAOD processes…https://www.hielscher.com/ultrasonic-marine-fuel-desulphurization.htm
The worldwide demand for phosphor is increasing, whilst the supply of natural phosphorus resources are getting scarce. Sewage sludge and sewage sludge ash are rich in phosphorus and can be therefore used as source to reclaim phosphorus. The ultrasonic…https://www.hielscher.com/ultrasonic-phosphor-recovery-from-sewage-sludge.htm
Water-soluble polyhydroxylated C60 fullerene, called fullerenol or fullerol, is a strong free radical scavenger and is therefore used as an antioxidant in supplements and pharmaceuticals. Ultrasonic hydroxylation is a rapid and simple one-step reaction, which is used to produce…https://www.hielscher.com/ultrasonic-polyhydroxylated-c60-fullerenol.htm
Sonication is widely used for chemical and biochemical reactions. Hielscher supplies standardized ground joint adapters to insert the ultrasonic sonotrode into reaction vessels such as round-bottom flasks, multi-neck flasks and other lab glass ware. For a sophisticated setup of…https://www.hielscher.com/sonication-in-multi-neck-flasks.htm
Ultrasonic mixing and dispersion activates and intensifies the catalytic reaction in fixed bed reactors. The sonication improves the mass transfer and increases thereby efficiency, conversion rate and yield. An additional benefit is the removal of passivating fouling layers from…https://www.hielscher.com/ultrasonically-intensified-fixed-bed-reactors.htm
Reinforced rubbers show higher tensile strength, elongation, abrasion resistance and better aging stability. Fillers such as carbon black (e.g. CNTs, MWNTs), graphene, or silica must be homogeneously dispersed in the matrix to provide the desired material properties. Power ultrasonics…https://www.hielscher.com/ultrasonic-preparation-of-reinforced-rubber.htm
The conventional extraction of essential oils is expensive and time-consuming. Ultrasonic extraction gives higher yields and superior extract quality. Ultrasonic can be carried out as solvent- or water-based extraction method. Alternatively, sonication can be combined with traditional extraction systems…https://www.hielscher.com/ultrasonic-hydrodistillation-of-essential-oils.htm
Silver nanoparticles (AgNPs) are frequently utilized nanomaterials due to their anti-microbial properties, optical properties and high electrical conductivity. The sonochemical route using kappa carrageenan is a simple, convenient and environmental-friendly synthesis method for the preparation of silver nano particles.…https://www.hielscher.com/green-sonochemical-route-to-silver-nanoparticles.htm
Ultrasonic Spray Pyrolysis (USP) is one of the important techniques to synthesize nano materials and to coat substrates with thin film coatings. Ultrasonic spraying and atomization allows for full process control resulting in homogeneous high-quality output. Ultrasonic spray pyrolysis…https://www.hielscher.com/ultrasonic-spray-pyrolysis.htm
Nanocellulose is a high-performance additive which is successfully used as rheology modifier, reinforcing agent and additive in manifold high-performance materials and applications. The nano-structured fibrils can be very efficiently isolated from any cellulose-containing source by high-power ultrasonic homogenization and…https://www.hielscher.com/ultrasonic-production-of-nano-structured-cellulose.htm