Adsorption of textile dyes on raw Tunisian clay: Equilibrium, kinetics and thermodynamics
Journal Title: JOURNAL OF ADVANCES IN CHEMISTRY - Year 2015, Vol 11, Issue 6
Abstract
Natural clay from Nabeul region (north of Tunisia) was investigated for the removal of two anionic textile dyes (RR120 and BB150) from aqueous solution. The raw clay was characterized by means of XRD, IR spectroscopic, chemical analysis, cation exchange capacity and BET surface area analysis.Adsorption studies were carried out under various parameters such as pH, contact time, initial dye concentration and temperature. The adsorption kinetic data was tested by pseudo-first order, pseudo second-order and intra-particle diffusion kinetic models. The equilibrium data were analyzed using Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherm models. The thermodynamic parameters (DH°, DS° and DG°) of the adsorption were also evaluated. The adsorption process was found spontaneous and endothermic in nature. The kinetics of adsorption were best described by pseudo-second order kinetic model. The Langmuir adsorption model totally agrees with the experimental data.Â
Authors and Affiliations
Naghmouchi Nahed, nahdi kais
Keywords
Related Articles
- EP ID EP652883
- DOI 10.24297/jac.v11i6.857
- Views 187
- Downloads 0
POROUS BASED IMMUNOSENSOR FOR DETECTION OF LDL MOLECULES FROM BLOOD SERUM USING ARRAY OF CANTILEVER BEAM
In this work, the NiO thin film based array of Cantilever structure for the detection of low-density lipoprotein (LDL) is proposed. To detect the LDL molecules in the applied blood serum, the highly selective Anti-apolip...
Synthesis, Characterization and DFT Studies on Some 2,3-Dihydro-4-Methyl-1H-1,5-Benzodiazepinone and N-Isopropenyl Benzimidazolone Derivatives
Benzodiazepinones and benzimidazolones have been synthesized by the reaction of o-phenylenediamine with ethylacetoacetate in boiling xylene. Alkylation of the obtained compounds was carried out by reaction with excess of...
Phosphorylation and Promising In-Vitro Antimicrobial Activity of Some New Organosulfur Compounds
During the past few decades, interest has been rapidly growing in gaining insight into the properties and transformations of thiosemicarbazide and their derivatives due to their appreciable pharmacological activities. Di...
Adsorption of Hexavalent Chromium and phenol onto Bentonite Modified With HexaDecylTriMethylAmmonium Bromide (HDTMABr)
The efficiencies of Hexadecyltrimethylammonium bromide (HDTMABr) modified bentonite (HDTMABt) for phenol and chromium removal from aqueous solutions were studied in batch experiments at pH = 9 and pH = 2 values, respecti...
EXPERIMENTAL AND MATHEMATICAL INVESTIGATION ON PERFORMANCE AND EMISSION CHARACTERISTICS OF OXYGEN ENRICHED AIR IN INTAKE OF A SINGLE CYLINDER DIESEL ENGINE
This research revealed that the single cylinder diesel engine performance and emission  characteristics are improved by the oxygen content enriched intake air and was varied between 21% to 27 % (ie., 21,23...