Insights into enhanced O3 adsorption on Ti/ anatase TiO2 (1 0 1) surfaces by positive electric Fields: A theoretical exploration

•An electrochemical strategy for enhancing ozone adsorption was proposed.•Enhanced mechanism was revealed using density functional theory calculations.•Positive electric field (E) significantly increased the adsorption energy (Eads)•Adsorption sites and configurations played an important role in Eads increase.•E promoted orbital hybridization between ozone and adsorption sites.