title: A novel approach for the oxidative degradation of organic pollutants in aqueous solutions mediated by iron tetrasulfophthalocyanine under visible light radiation.
abstract: An efficient approach has been developed to decompose toxic organic pollutants. The photodegradation of Rhodamine B (RhB), salicylic acid, and Orange II was examined in the presence of iron tetrasulfophthalocyanine ([Fe(PcS)]) and H(2)O(2) under visible irradiation. It was found that under visible light irradiation, organic pollutants in the [Fe(PcS)]/H(2)O(2) system can be rapidly degraded, but the concentration of [Fe(PcS)] remains nearly unchanged, and this indicates that [Fe(PcS)] has a good catalytic character. EPR results and other experimental results suggest that the light-activated reaction process involves the formation and reaction of HO(.) radicals. On the basis of the experimental results, a possible reaction mechanism for the degradation of organic pollutants under visible light illumination in the aqueous [Fe(PcS)]/H(2)O(2) solutions is proposed.
authors.affiliation: Laboratory of Photochemistry, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Tao
authors.forename: Wanhong
authors.initials: W
authors.lastname: Ma
authors.forename: Tianyong
authors.initials: T
authors.lastname: Zhang
authors.forename: Jincai
authors.initials: J
authors.lastname: Zhao
mesh_terms: D001391:Azo Compounds / Q000528:radiation effects; D001557:Benzenesulfonates / Q000528:radiation effects; D007211:Indoles / Q000737:chemistry*; D007220:Industrial Waste / Q000517:prevention & control; D008027:Light; D009930:Organic Chemicals / Q000528:radiation effects; D009942:Organometallic Compounds / Q000737:chemistry*; D010083:Oxidants, Photochemical / Q000737:chemistry; D010084:Oxidation-Reduction; D010782:Photolysis; D012235:Rhodamines / Q000528:radiation effects; D020156:Salicylic Acid / Q000528:radiation effects; D012996:Solutions; D014867:Water; D014874:Water Pollutants, Chemical / Q000528:radiation effects*
chemical_list: D001391:Azo Compounds; D001557:Benzenesulfonates; D007211:Indoles; D007220:Industrial Waste; D009930:Organic Chemicals; D009942:Organometallic Compounds; D010083:Oxidants, Photochemical; D012235:Rhodamines; D012996:Solutions; D014874:Water Pollutants, Chemical; D014867:Water; C052737:iron tetrasulfophthalocyanine; C029773:rhodamine B; D020156:Salicylic Acid; C014722:2-naphthol orange