Abstract
Herein, we have demonstrated the designing of activated carbon from Pinus roxburghii cone (PRCAC) by facile carbonization method. The synthesized PRCAC was utilized for the removal of malachite green (MG), a basic dye from aqueous medium. The surface properties of PRCAC were elucidated by N-2 adsorption-desorption and point zero charge studies. Quite attractive adsorption results were obtained by PRCAC due to it's high surface area (202 m(2)/g). Influence of numerous elements; concentration of MG, pH, time, adsorbent dose and temperature were studied in detail. Low acidic medium found to be preferential for the adsorption process. The adsorption isotherm studies were also carried out and results showed that the data fitted well to Langmuir isotherm. Maximum adsorption capacity of PRCAC was found to be 250 mg/g. Different kinetic model were also studied for the undertaken adsorption reaction.