title: Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2.
abstract: Degradation of rhodamine B by Fe(0)-based Fenton process with H(2)O(2) was investigated. The effects of H(2)O(2) dose, Fe(0) dose, initial concentration of rhodamine B and initial pH value on the degradation of rhodamine B were examined. The results showed that the degradation and mineralization of rhodamine B occurred with low dose of H(2)O(2) and Fe(0). The intermediates of rhodamine B were analyzed with UV-Vis spectrophotometry and ion chromatography and the mechanism of oxidative degradation of rhodamine B was also discussed. The reactive oxygen species (·OH) produced in Fe(0)-based Fenton process with H(2)O(2) is the key to the degradation of rhodamine B by ways of N-de-ethylation, chromophore cleavage, ring-opening and mineralization.
authors: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China.
authors: Mei-Fang
authors: MF
authors: Hou
authors: Lin
authors: L
authors: Liao
authors: Wei-De
authors: WD
authors: Zhang
authors: Xiao-Yan
authors: XY
authors: Tang
authors: Hong-Fu
authors: HF
authors: Wan
authors: Guang-Cai
authors: GC
authors: Yin
mesh_terms: D005456:Fluorescent Dyes / Q000032:analysis / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D012235:Rhodamines / Q000032:analysis / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
chemical_list: D005456:Fluorescent Dyes; D012235:Rhodamines; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide; D007501:Iron; C029773:rhodamine B