TY - JOUR AU - YADAV, SARITA AU - TYAGI, D.K. AU - YADAV, O.P. PY - 2011/01/01 Y2 - 2024/03/29 TI - EQUILIBRIUM AND KINETIC STUDIES ON ADSORPTION OF ANILINE BLUE FROM AQUEOUS SOLUTION ONTO RICE HUSK CARBON JF - International Journal of Chemistry Research JA - Int J Chem Res VL - 2 IS - 3 SE - Research Article DO - UR - https://ijcr.info/index.php/journal/article/view/51 SP - 59-64 AB - <p>Equilibrium and kinetic studies on the adsorption of Aniline Blue dye from aqueous solution onto activated rice husk carbon have been reported. <br>The rice husk carbon has been characterized for its specific surface area, XRD and TEM analysis. The effects of dye initial concentration, adsorbent‐<br>adsorbate contact time and temperature on the percent adsorption of the dye on the adsorbent have been investigated. Kinetics of adsorption of <br>Aniline blue onto the adsorbent in aqueous solution was monitored, spectro‐photometrically. At the given dye initial concentration, % adsorption <br>of dye increases with increase in temperature as well as the contact period. However, at the given temperature, % adsorption of the dye decreases <br>with the increase in dye initial concentration. The observed data was analyzed in the light of Langmuir and Freundlich adsorption isotherms. Dye <br>adsorption rate constant (kad) follows the first order kinetics. Activation energy (Ea) of adsorption, intra‐particle diffusion rate constant and <br>thermodynamic parameters of adsorption of the dye on the rice‐husk carbon have been evaluated and interpreted.</p> ER -