Grape vine shoots were utilized as the biomass feedstock and pyrolyzed under temperatures ranging in 300°C–600°C with nitrogen atmosphere to produce biochars. The surface properties of the as-obtained biochars were characterized, followed with the careful investigation of the adsorption of lead and cadmium removal in aqueous environments. All as-prepared biochars had weak alkali characteristics and large amount of mineral species, which can greatly improve the adsorption performance. Outstanding storing capacities of 250.81, 327.31, 377.36 m...