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Dyes Removal from Aqueous Solution Using Wood Activated Charcoal of Bombax Cieba Tree
Author(s) -
Bangash Fazlullah Khan,
Manaf Abdul
Publication year - 2005
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200500070
Subject(s) - chemistry , endothermic process , adsorption , methylene blue , aqueous solution , kinetics , activated charcoal , langmuir adsorption model , thermodynamics , nuclear chemistry , chromatography , organic chemistry , catalysis , physics , photocatalysis , quantum mechanics
Thermodynamic and kinetics of adsorption of basic dyes (methylene blue and basic blue 3) on wood charcoal activated at 800 °C, prepared from Bombax Cieba (M78D) was investigated. Equilibrium data was obtained using batch method at temperatures of 10 °C to 50 °C. It was found that adsorption increase with increase in temperature. The Langmuir isotherm model describe the equilibrium of adsorption. Thermodynamic parameters such as ΔS°, ΔH° and ΔG° were calculated. From the values of ΔH° and ΔG°, it was concluded that the adsorption process is endothermic and spontaneous in nature. To determine kinetics parameter Lagergren equation was applied, and it was found that the reaction proceed through first order kinetic mechanism.