Removal of Basic Dye Rhodamine-B by Activated Carbon-MnO2-Nanocomposite and Activated Carbon-A Comparative Study
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064

Research Paper | Chemistry | India | Volume 4 Issue 5, May 2015

Removal of Basic Dye Rhodamine-B by Activated Carbon-MnO2-Nanocomposite and Activated Carbon-A Comparative Study

M. Santhi, P. E. Kumar

The removal of Rhodamine-B by adsorption on Activated carbon-MnO2-Nanocomposite as well as on Activated carbon under optimized conditions has been studied. The effect of several parameters such as pH, contact time, initial concentration of the adsorbate, adsorbent dosage and temperature has been evaluated. The application of Pseudo first order, Pseudo second order, intra-particle diffusion model and Elovich kinetic models have been calculated. The adsorption on both the Activated carbon and nanocomposite followed Pseudo second order kinetics. Langmuir, Freundlich and Tempkin isotherms were also studied. The equilibrium data fitted well with Langmuir model. Thermodynamic parameters such as free energy change (-G ) enthalpy change (-H ), and entropy change (-S) indicate the adsorption process to be endothermic and spontaneous. Adsorbent used in this study are characterized by FT-IR, XRD and SEM analysis. The study revealed that nanocomposite is more effective than activated carbon in removing methylene blue by adsorption.

Keywords: Rhodamine-B, AC, AC-MnO2-NC, Adsorption isotherm, Kinetics

Edition: Volume 4 Issue 5, May 2015

Pages: 1968 - 1971

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M. Santhi, P. E. Kumar, "Removal of Basic Dye Rhodamine-B by Activated Carbon-MnO2-Nanocomposite and Activated Carbon-A Comparative Study", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=SUB154453, Volume 4 Issue 5, May 2015, 1968 - 1971

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