Preparation of smart nano-engineered electrospun membranes for methanol gas-phase photoxidation

•Photo-catalytic oxidation of methanol in gas phase is studied on three different nanostructured membranes.•Electrospinning (ES) and electrospraying (EHDA) were used alternatively as production techniques.•Inorganic TiO2 nanofibers and nanocomposite membranes showed the same performance.•Multistructured membranes showed a complete degradation of methanol.•The effect of catalyst content is studied.