@article { author = {Raman, M. K. and Muthuraman, G.}, title = {Applicability of Tempkin Equilibrium and Elovich Kinetics for Chemisorption of Brown HE-2G on Calendula Officinalis}, journal = {Iranica Journal of Energy & Environment}, volume = {9}, number = {1}, pages = {41-47}, year = {2018}, publisher = {Babol Noshirvani University of Technology}, issn = {2079-2115}, eissn = {2079-2123}, doi = {10.5829/ijee.2018.09.09.06}, abstract = {Calendula officinalis is a low-cost material used as adsorbent for the removal of textile dye, Brown HE-2G.  The effect of pH, concentration of dyes, adsorbent dose and contact time were obtained by batch adsorption technique.  The results were analyzed by adsorption isotherm models (Freundlich, Langmuir, Redlich-Peterson and Tempkin).  The results were in good agreement with Langmuir model and the Redlich-Peterson isotherm models.  The Langmuir monolayer adsorption quantity was found to be, 76.56 mg g-1 Brown HE-2G.  Pseudo-first-order, pseudo-second-order, Intraparticle diffusion and Tempkin kinetic models were used to fit the experimental data, it was well fitted into pseudo second order kinetics. FT-IR and SEM analysis have effectively supported the adsorption of Brown HE2G on the adsorbent.}, keywords = {Calendula officinalis,Brown HE-2G,Textile Dye,Adsorption kinetics}, url = {https://www.ijee.net/article_64705.html}, eprint = {https://www.ijee.net/article_64705_6e4f65dd265e3f86d0a096c91599c8da.pdf} }