Activated carbons(AC) have been synthesized because of chemical activation with ZnCl2, NaOH, H3PO4, and H3BO3 from the ash tree(AH), which is considerable in Turkey and the world. It was investigated that the obtained ACs may very well be used as efficient adsorbents for the elimination of methylene blue(MB) from the aqueous answer. SEM, EDX, BET, FTIR, and CHNS elemental analyses have been used for the characterization of uncooked and ACs. The outcomes present that carbonaceous supplies include each mesoporous and lively purposeful teams. The utmost adsorption capacities obtained because of chemical activation of ZnCl2 (AH-ZnCl2) and NaOH (AH-NaOH) with the most effective floor space values have been decided as 334 mg g−1 and 364 mg g−1, respectively. The adsorption mechanism was evaluated with pseudo-first-order and pseudo-second-order kinetic fashions. It may be concluded that ACs ready from ash wooden are fairly ultimate compared with totally different adsorbents within the literature for eradicating methylene blue from aqueous options.