Perchlorate adsorption from aqueous solution on inorganic-pillared bentonites

► Pillared bentonites presented a more developed porosity than Na-bentonites. ► The second-order kinetic fit the perchlorate adsorption on pillared bentonites. ► The Langmuir model was the best to fit the equilibrium data. ► The adsorption process was spontaneous, favorable and endothermic. ► Various influential factors were investigated during perchlorate adsorption.