This study investigates the adsorption of two model pesticides, 2,4-Dichlorophenoxyacetic acid (2,4-D) and Carbofuran, on activated carbons derived from peach stones through chemical activation with phosphoric acid. The optimal synthesis conditions for the activated carbon were determined, resulting in a maximum specific surface area of 1182 m²·g⁻¹, primarily composed of micropores. The surface chemistry of the activated carbon was characterized using pH at point of zero charge, scanning electron microscopy, and Fourier transform infrared spectroscopy. Adsorption kinetics showed that 2,4-D follows a pseudo-first-order model, while Carbofuran is better described by a pseudo-second-order model. Equilibrium adsorption results indicate that 2,4-D has a higher adsorption capacity (approximately 500 mg·g⁻¹) compared to Carbofuran (approximately 250 mg·g⁻¹). Thermodynamic analysis suggests that the adsorption process is predominantly physical. The study highlights the effectiveness of activated carbons from peach stones in removing these pesticides, with potential applications in water treatment. The results indicate that the adsorption process is influenced by factors such as surface area, pore structure, and surface chemistry, and that the adsorption mechanism is not primarily governed by electrostatic interactions. The findings suggest that activated carbons from peach stones could be a promising adsorbent for the removal of pesticides from water.This study investigates the adsorption of two model pesticides, 2,4-Dichlorophenoxyacetic acid (2,4-D) and Carbofuran, on activated carbons derived from peach stones through chemical activation with phosphoric acid. The optimal synthesis conditions for the activated carbon were determined, resulting in a maximum specific surface area of 1182 m²·g⁻¹, primarily composed of micropores. The surface chemistry of the activated carbon was characterized using pH at point of zero charge, scanning electron microscopy, and Fourier transform infrared spectroscopy. Adsorption kinetics showed that 2,4-D follows a pseudo-first-order model, while Carbofuran is better described by a pseudo-second-order model. Equilibrium adsorption results indicate that 2,4-D has a higher adsorption capacity (approximately 500 mg·g⁻¹) compared to Carbofuran (approximately 250 mg·g⁻¹). Thermodynamic analysis suggests that the adsorption process is predominantly physical. The study highlights the effectiveness of activated carbons from peach stones in removing these pesticides, with potential applications in water treatment. The results indicate that the adsorption process is influenced by factors such as surface area, pore structure, and surface chemistry, and that the adsorption mechanism is not primarily governed by electrostatic interactions. The findings suggest that activated carbons from peach stones could be a promising adsorbent for the removal of pesticides from water.