Basic dye adsorption onto an agro-based waste material - Sesame hull (Sesamum indicum L.)

► The use of sesame hull could effectively remove methylene blue. ► The adsorption process of methylene blue onto sesame hull is exothermic. ► The adsorption process fits to pseudo-second-order kinetic model. ► The maximum monolayer adsorption capacity is 359.88 mg g−1. ► Sesame hull is a kind of low-cost bioadsorbents.