IJEP 42(12): 1425-1436 : Vol. 42 Issue. 12 (December 2022)
1. Rani Anna Government College for Women, Department of Chemistry, Tirunelveli – 627 008, Tamil Nadu, India; Affiliated to Manonmanian Sundaranar University, Abishekapatti, Tirunelveli – 627 012, Tamil Nadu, India
2. Sri K.G.S. Arts College, Department of Chemistry, Srivaikuntam – 628 619, Thoothukudi, Tamil Nadu, India
3. St. Xavier’s College (Autonomous), Department of Chemistry, Palayamkottai, Tirunelveli-627 002, Tamil Nadu, India
The present study reports the preparation and usage of Prosopis spicigera L. wood carbon-iron sulphide composite (PsLw carbon-iron sulphide composite) for the effective removal of Rhodamine 6G (Rh 6G) from aqueous solutions. The characterization of the adsorbent was made by FTIR, SEM, BET and potentiometric methods. The effect of the adsorption of dye was measured in terms of pH, contact time, initial concentration, temperature and in the presence of other ions. The batch and kinetic study were performed at pH=6.0. The maximum adsorption capacity is found to be 33.14 mg/g for an initial concentration of 20 mg/L at pH=6.0. The adsorption isotherm fits Langmuir isotherm and adsorption kinetics follows pseudo-second order model. Thermodynamic studies exhibit the adsorption to be feasible, spontaneous and endothermic in nature. Column analysis was evolved with Thomas model.
Adsorption, Kinetics, Mass transfer, Prosopis spicigera L. wood carbon, Rhodamine 6G, Thomas model
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