title: Behavior of bromide in the photoelectrocatalytic process and bromine generation using nanoporous titanium dioxide thin-film electrodes.
abstract: In this study, the photoelectrocatalytic behavior of bromide and generation of bromine using TiO2 was investigated in the separate anode and cathode reaction chambers. Our results show that the generation of bromine begins around a flatband potential of -0.34 V vs. standard calomel electrode (SCE) at pH 3.0 under UV illumination and increases with an increase in positive potential, finally reaching a steady-state concentration at 1.0 V vs. SCE. Maximum bromine formation occurs over the range of pH 4-6, decreasing sharply at conditions where the pH>7.
authors.affiliation: Environmental Chemistry and Technology Program, University of Wisconsin-Madison, 660 N. Park Street, Madison, WI 53706-1484, USA. selcukh@itu.edu.tr
authors.forename: Huseyin
authors.initials: H
authors.lastname: Selcuk
authors.forename: Jeosadaque J
authors.initials: JJ
authors.lastname: Sene
authors.forename: Maria Valnice B
authors.initials: MV
authors.lastname: Zanoni
authors.forename: Hasan Z
authors.initials: HZ
authors.lastname: Sarikaya
authors.forename: Marc A
authors.initials: MA
authors.lastname: Anderson
mesh_terms: D001965:Bromides / Q000737:chemistry*; D001966:Bromine / Q000737:chemistry*; D002384:Catalysis; D004563:Electrochemistry; D004566:Electrodes; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D014025:Titanium
chemical_list: D001965:Bromides; C009495:titanium dioxide; D014025:Titanium; D001966:Bromine