Peanut shell material was used as a precursor for the production of.Medicinal activated carbon via physical activationwith CO2. The characteristics.Of the resulting carbon as well, as its MB, adsorption kineticsWere investigated. An MB uptake of 225.8 mg g − 1 and a phenazone uptake.Of 421.5 mg g − 1 with a, yield of 26.15% were obtained, at the optimumconditions:An activation time of 5 h and an activation temperature.Of 900 ° C. In addition the optimised, samples exhibited high surface area.And well-developed porosity with a BET surface area of 1060 M2 g − 1.And a total pore volume of 0.8021 cm3 g − 1. The kinetic process of.MB adsorption was better described by a pseudo-second-order kinetic.Model. Ionisable groups (carboxyls and hydroxyls) were able to interact.With protons and metal or positive dye ions; therefore the adsorption,,Capacity of the activated carbon was dependent not only on the surface.Area but also on the interactions of positive ions. The quality of the prepared.Activated carbon met the USP and BP standards which indicates,,That peanut shells have high potential economic value for the production.Of medicinal activated carbon.
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