In this research, g-C3N4 and β-PbO2 were deposited onto a porous, three-dimensional carbon flat (CF) substrate using electrophoretic and anodic deposition methods.Subsequently, the surface of the CF/g-C3N4-β-PbO2 electrode was modified by a laser ablation process (CF/g-C3N4/PbO2-L).The results indicated that the CF/g-C3N4/PbO2-L anode possessed more compact and denser β-PbO2 crystals, a larger electrochem. active surface area (0.4118 m2/g), a higher oxygen evolution potential (1.95 V), and improved stability (120 h).The study investigated the electrochem. behavior of remdesivir (REM), particularly the influence of solution pH, applied current, and initial pollutant concentration on its removal using the CF/g-C3N4/PbO2-L anode.Starting with an initial REM concentration of 50 mg/L, a maximum removal efficiency of 98.1 % was achieved after 180 min of treatment, under optimal conditions of pH 5 and an applied current of 450 mA.Under the same conditions, the removal of COD was 93.6 %.In this research, REM degradation was followed using UV-Vis spectrophotometry and cyclic voltammetry.The intermediate products of REM degradation were specified by the LC-MS and the proposed pathways for REM degradation were suggested.Improving the biodegradability of pharmaceutical wastewater through treatment under optimal conditions revealed that, after 180 min, the BOD/COD ratio achieved a value of 0.4, indicating potential for biol. wastewater treatment using microorganisms.This study demonstrated that the laser ablation process can enhance the electrocatalytic performance and anode stability for environmental applications by modifying the PbO2 matrix, aiming to mineralize toxic and resistant organic pollutants.