title: Photocatalytic degradation of humic acid using a novel photocatalyst: Ce-doped ZnO.
abstract: This study aimed at investigating the photocatalytic degradation of humic acid (HA) as a representative of natural organic matter (NOM) by using Ce-doped ZnO as a novel material. Following photocatalysis, HA degradation was characterized by specified UV-vis and fluorescence spectroscopic parameters as well as by the dissolved organic carbon (NPOC) content. Excitation-Emission Matrix (EEM) fluorescence features were also evaluated by using advanced techniques. Comparison of Ce-doped ZnO photocatalysis to TiO2P-25 photocatalytic treatment of the HA samples was elucidated under similar experimental conditions. Kinetic modeling of the photocatalytic removal of HA expressed promising results indicating that Ce-doped ZnO could serve as an efficient catalyst for the degradation of NOM.
authors.affiliation: Bogazici University, Institute of Environmental Sciences, 34342, Bebek Istanbul, Turkey. cemre.birben@boun.edu.tr.
authors.forename: N C
authors.initials: NC
authors.lastname: Birben
authors.affiliation: University of Turin, Department of Chemistry, Via Giuria 7, 10125, Turin, Italy.
authors.forename: M C
authors.initials: MC
authors.lastname: Paganini
authors.affiliation: University of Turin, Department of Chemistry, Via Giuria 7, 10125, Turin, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Calza
authors.affiliation: Bogazici University, Institute of Environmental Sciences, 34342, Bebek Istanbul, Turkey. cemre.birben@boun.edu.tr.
authors.forename: M
authors.initials: M
authors.lastname: Bekbolet
mesh_terms: D002384:Catalysis; D002563:Cerium / Q000737:chemistry*; D006812:Humic Substances / Q000032:analysis*; D007700:Kinetics; D010782:Photolysis / Q000528:radiation effects*; D013056:Spectrophotometry, Ultraviolet; D014466:Ultraviolet Rays; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D006812:Humic Substances; D002563:Cerium; C030583:ceric oxide; D015034:Zinc Oxide