Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  DetailsÜbersicht

Freigegeben
Zeitschriftenartikel

Highly Efficient Photodegradation of Organic Pollutants Assisted by Sonoluminescence

MPG-Autoren
/persons/resource/persons121880

Skorb,  Ekaterina. V.
Katja Skorb (Indep. Res.), Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Volkova, A. V., Nemeth, S., Skorb, E. V., & Andreeva, D. V. (2015). Highly Efficient Photodegradation of Organic Pollutants Assisted by Sonoluminescence. Photochemistry and Photobiology, 91(1), 59-67. doi:10.1111/php.12352.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002A-1EE9-2
Zusammenfassung
The mechanism of the photodegradation of azo dyes via ultrasonication is studied using a combination of the high-performance liquid chromatography and UV–vis spectroscopy with detailed analysis of the kinetics. Based on the kinetics studies of the sonodegradation, it was proposed that the degradation of azo dyes was a multistage process that involved: (1) the direct attack of azo bonds and phenyl rings of dyes by the sonochemically formed reactive oxygen species; (2) the activation of semiconductor particles by the light emitted during cavitation and the triggering of the photocatalytic pathways of dye degradation and (3) increase of the adsorption capacity of the semiconductor particles due to the sonomechanically induced interparticle collisions. The detailed kinetics study can help in following an effective process up-scaling. It was demonstrated that extremely short pulses of light flashes in a cavitated mixture activated the surface of photocatalysts and significantly enhanced dye degradation processes.