A combination of ultrasound and oxidative enzyme: sono-enzyme degradation of phenols in a mixture.
Sono-degradation and sono-enzyme degradation of phenols were performed on the mixtures of double compounds (phenol, p-chlorophenol; phenol, p-cresol; phenol, p-nitrophenol; and p-chlorophenol, p-cresol) in aqueous medium. Sono-degradation of phenol and its substituted compounds individually behaved approximately the same, but in the case of mixture behaved differently. Sono-degradation of substituted phenols was easier than phenol in a mixture, but there was an exception in the combination of phenol and p-nitrophenol that the degradation of phenol was faster than substituted compound. This behavior was the same in sono-enzyme degradation, but with higher degradation rate. Between these mixtures, the combination of phenol and p-cresol presented a significant different behavior in case of single and double compounds solutions. In this system, the sono-degradation of phenol in mixture was more difficult than phenol alone but, the sono-degradation of p-cresol in mixture was easier in comparison with p-cresol alone. In sono-enzyme degradation, p-cresol as a more reactive compound facilitated the remove of phenol in mixture in compare of the individual case.
Entezari
Mohammad H
MH
Department of Chemistry, Ferdowsi University of Mashhad, 91775, Mashhad, Iran. moh_entezari@yahoo.com
Pétrier
Christian
C
D002733:Chlorophenols / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D003408:Cresols / Q000737:chemistry; D006735:Horseradish Peroxidase / Q000737:chemistry*; D007202:Indicators and Reagents; D010636:Phenols / Q000737:chemistry* / Q000528:radiation effects*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D014465:Ultrasonics
D002733:Chlorophenols; D003408:Cresols; D007202:Indicators and Reagents; D010636:Phenols; D012996:Solutions; C032538:4-cresol; C029107:4-chlorophenol; D006735:Horseradish Peroxidase