TY - JOUR ID - 64705 TI - Applicability of Tempkin Equilibrium and Elovich Kinetics for Chemisorption of Brown HE-2G on Calendula Officinalis JO - Iranica Journal of Energy & Environment JA - IJEE LA - en SN - 2079-2115 AU - Raman, M. K. AU - Muthuraman, G. AD - Department of Chemistry, Sri Sairam Engineering College, Chennai-600044, India+Department of Chemistry, Presidency College, Chennai – 600005, Tamil Nadu, India AD - Department of Chemistry, Presidency College, Chennai – 600005, Tamil Nadu, India Y1 - 2018 PY - 2018 VL - 9 IS - 1 SP - 41 EP - 47 KW - Calendula officinalis KW - Brown HE-2G KW - Textile Dye KW - Adsorption kinetics DO - 10.5829/ijee.2018.09.09.06 N2 - 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. UR - https://www.ijee.net/article_64705.html L1 - https://www.ijee.net/article_64705_6e4f65dd265e3f86d0a096c91599c8da.pdf ER -