title: Photoelectrocatalytic oxidation of formaldehyde using a Ti/TiO2 foil electrode. Application for its novel and simple photoelectrochemical determination.
abstract: It was firstly described, that a TiO(2) film modified titanium foil electrode (Ti/TiO(2)) shows an efficient photoelectrocatalytic activity towards formaldehyde oxidation in a phosphate buffer solution. Ti/TiO(2) foil electrode was prepared by anodizing Ti foil in aqueous solution. Also, this electrode was applied for the hydrodynamic photoamperometry measurement of formaldehyde in the optimum conditions (pH 7.0 as biological pH and bias potential 0.8 V vs. reference electrode). The photoelectrocatalytic oxidation photocurrent of the photoelectrode determined by photoamperometry method was linearly dependent on the formaldehyde concentration and the linearity range obtained was 6.70×10(-4)-1.48×10(-2) mol L(-1). Detection limit was found to be 3.09×10(-4) mol L(-1) (2σ).
authors.affiliation: Electroanalytical Chemistry Research Laboratory, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran. fer-o@umz.ac.ir
authors.forename: Reza
authors.initials: R
authors.lastname: Ojani
authors.forename: Jahan-Bakhsh
authors.initials: JB
authors.lastname: Raoof
authors.forename: Ebrahim
authors.initials: E
authors.lastname: Zarei