title: Heterogeneous Fenton degradation of bisphenol A catalyzed by efficient adsorptive Fe3O4/GO nanocomposites.
abstract: A new method for the degradation of bisphenol A (BPA) in aqueous solution was developed. The oxidative degradation characteristics of BPA in a heterogeneous Fenton reaction catalyzed by Fe3O4/graphite oxide (GO) were studied. Transmission electron microscopic images showed that the Fe3O4 nanoparticles were evenly distributed and were ∼6 nm in diameter. Experimental results suggested that BPA conversion was affected by several factors, such as the loading amount of Fe3O4/GO, pH, and initial H2O2 concentration. In the system with 1.0 g L(-1) of Fe3O4/GO and 20 mmol L(-1) of H2O2, almost 90% of BPA (20 mg L(-1)) was degraded within 6 h at pH 6.0. Based on the degradation products identified by GC-MS, the degradation pathways of BPA were proposed. In addition, the reused catalyst Fe3O4/GO still retained its catalytic activity after three cycles, indicating that Fe3O4/GO had good stability and reusability. These results demonstrated that the heterogeneous Fenton reaction catalyzed by Fe3O4/GO is a promising advanced oxidation technology for the treatment of wastewater containing BPA.
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, 210098, Nanjing, China.
authors.forename: Zulin
authors.initials: Z
authors.lastname: Hua
authors.forename: Wenqiang
authors.initials: W
authors.lastname: Ma
authors.forename: Xue
authors.initials: X
authors.lastname: Bai
authors.forename: Ranran
authors.initials: R
authors.lastname: Feng
authors.forename: Lu
authors.initials: L
authors.lastname: Yu
authors.forename: Xiaoyuan
authors.initials: X
authors.lastname: Zhang
authors.forename: Zhangyan
authors.initials: Z
authors.lastname: Dai
mesh_terms: D000327:Adsorption; D001559:Benzhydryl Compounds / Q000737:chemistry*; D002384:Catalysis; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D062065:Wastewater / Q000737:chemistry*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D052203:Ferrosoferric Oxide; D006108:Graphite; D006861:Hydrogen Peroxide; D007501:Iron; D010087:Oxides; D010636:Phenols; D062065:Wastewater; C006780:bisphenol A; D000098826:Bisphenol A Compounds