N-doped TiO2 photo-catalyst for the degradation of 1,2-dichloroethane under fluorescent light

► Nitrogen-doped TiO2 shows superior photo-catalytic activity. ► The degradation depends on oxygen concentration and relative humidity. ► Oxygen molecule is the major factor to degrade 1,2-dichloroethane in gas phase. ► Some by-products were analyzed by FTIR.