title: Ultrasonic degradation of Rhodamine B in the presence of hydrogen peroxide and some metal oxide.
abstract: In this research, degradation of Rodamine B in the presence of (hydrogen peroxide), (hydrogen peroxide+ultrasound), (hydrogen peroxide+aluminum oxide), (hydrogen peroxide+aluminum oxide+ultrasound with different ultrasound power), (hydrogen peroxide+iron oxide) and (hydrogen peroxide+iron oxide+ultrasound with different ultrasound power) were investigated at 25 degrees C. The apparent rate constants for the examined systems were calculated by pseudo-first-order kinetics. The results indicate that the rate of degradation was accelerated by ultrasound. The rate of degradation was increased by increasing power ultrasound. The efficiency of the (hydrogen peroxide+iron oxide+ultrasound) system for degradation of Rodamine B was higher than the others examined.
authors.affiliation: Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran. a_mehrdad@tabrizu.ac.ir
authors.forename: Abbas
authors.initials: A
authors.lastname: Mehrdad
authors.forename: Robab
authors.initials: R
authors.lastname: Hashemzadeh
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry / Q000528:radiation effects; D006861:Hydrogen Peroxide / Q000737:chemistry* / Q000528:radiation effects; D008670:Metals / Q000737:chemistry* / Q000528:radiation effects; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D012235:Rhodamines / Q000737:chemistry* / Q000528:radiation effects*; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000528:radiation effects*; D018508:Water Purification / Q000379:methods*
chemical_list: D005456:Fluorescent Dyes; D008670:Metals; D010087:Oxides; D012235:Rhodamines; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide; C029773:rhodamine B