Photoelectrocatalytic oxidation of formaldehyde using a Ti/TiO2 foil electrode. Application for its novel and simple photoelectrochemical determination

► Using Ti/TiO2 electrode for photoelectrocatalytic determination, for the first time. ► Study of photoelectrochemical behavior of formaldehyde at the surface of Ti/TiO2. ► Proposed method for determination of formaldehyde being low cost and simple. ► Photoelectrocatalytic determination of formaldehyde only using a 4 W lamp.