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Removal of Methylene Blue Dye by Adsorption Using Low Cost Adsorbent from Agricultural Waste : Solanum Torvum
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kavitha, Ganapathy Venkateswaran, Vidya |
| Copyright Year | 2017 |
| Abstract | Activated carbon prepared from the stems of Solanum Torvum (STAC) was used to remove methylene blue dye (MB) from aqueous solutions. The activated carbon was characterized by Powder-XRD and Scanning electron microscopy (SEM). Various parameters such as initial dye concentration, contact time, pH and adsorbent dosage in a batch adsorption studies were investigated on the removal of methylene blue using STAC. Adsorption kinetics was found to follow pseudo-second-order kinetic model with a good correlation (R 2 ≈ 1). Adsorption isotherms were modeled with Langmuir, Freundlich and Temkin isotherms at different temperatures. The data fitted well with the Langmuir isotherm. In addition, various thermodynamic parameters, such as standard Gibbs free energy (ΔG ◦ ), standard enthalpy (ΔH ◦ ) and standard entropy (ΔS ◦ ) have been calculated. The adsorption process of methylene blue dye onto STAC was found to be spontaneous and endothermic process. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.iosrjournals.org/iosr-jac/papers/vol10-issue9/Version-1/K1009016876.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |