Kinetics and Equilibrium Study for the Adsorption of Methylene Blue Dye on Azadiratcha indica Activated Carbon
Abstract: Methylene Blue (MB) can cause some harmful effects and difficult to decolorize due to its complex structure. So, the main purpose of the present study was to remove MB by activated carbon, prepared from Azadiratcha indica waste biomass material. In the present study, adsorption of MB on activated carbon obtained from Azadiratcha indica has been investigated by batch adsorption method. The percentage removal of dye has been optimized by studying the initial concentration of the dye, adsorbent dosage, adsorption time and pH (2-11). The experimental data were found to be well fitted to Langmuir isotherm. Three kinetics models including Natarajan and Khalaf equation, Lagergren equation, Bhattacharya and Venkobachar equation were selected to follow the adsorption processes. Kinetic studies showed that the adsorption followed Lagergren first order kinetic model. The present study indicated that activated carbon obtained from Azadiratcha indica is an effective adsorbent of MB dye.
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G. Vijayalakshmi, B. Ramkumar and S. Chandra Mohan 2019. Kinetics and Equilibrium Study for the Adsorption of Methylene Blue Dye on Azadiratcha indica Activated Carbon. International Research Journal of Applied Sciences, 3: 91-99