ABSTRACT
Agriculture residue (peach stones) was valorized to produce low-cost activated carbon. Granular peach stones were activated by H3PO4 after heating treatment. The peach stones activated carbon (PSAC) was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and nitrogen adsorption (BET).The simply prepared carbon was high-quality adsorbent with well-developed surface area and essentially microporous structure. PSAC was applied for Cr(VI) removal in batch system from aqueous solution. Cr(VI) removal was found 99.58% at pH 5.6. Investigations carried out proved that PSAC is an efficient and economic adsorbent for the treatment of toxic hexavalent chromium.