Indexing Metadata
Equilibrium, Kinetic and Thermodynamic Study on Chromium(VI) Removal from Aqueous Solution
Using Pistia Stratiotes Biomass |
| DUBLIN | CORE | METADATA ITEM | METADATA FOR THIS DOCUMENT |
| 1 | Title | Title of Document | Equilibrium, Kinetic and Thermodynamic Study on Chromium(VI) Removal from Aqueous Solution
Using Pistia Stratiotes Biomass |
| 2 | Creator | Author's name, affiliation, country | BISWAJIT DAS, NABA KUMAR MONDAL, PALAS ROYand SOUMYA CHATTARAJ
Department of Environmental Science, The University of Burdwan, West Bengal, India |
| 3 | Subject | Dicipline(s) | Chemical Science |
| 3 | Subject | Keywords | Adsorption, Biomass, Desorption, Chromium(VI) ion |
| 4 | Description | Abstract | A basic investigation on the adsorption Cr(VI) ions from aqueous solution by Pistia stratiotes biomass was investigated under batch mode. The influence of solution pH, sorbent dose, initial chromium(VI) concentration, contact time, stirring rate and temperature on the removal process were investigated. A biosorbent dosage of 5 g L-1 showed maximum metal uptake capacity (qe) of 7.24 mg g-1 for an initial metal ion concentration of 10 ppm. Sorption equilibrium time was observed in 15 min. The equilibrium adsorption data were analyzed by the Freundlich, Langmuir, Dubinin-Radushkevich and Temkin adsorption isotherm models. The kinetics of chromium(VI) ion was discussed by pseudo-first-order, pseudo-second-order and intra-particle diffusion models. It was shown that the adsorption of chromium(VI) ions could be described by the pseudo-second order kinetic model. Thermodynamic parameters such as Gibbs free energy (ΔGo), the enthalpy (ΔHo) and the entropy change of sorption (ΔSo) have also been evaluated and it has been found that the adsorption process was spontaneous, feasible and endothermic in nature. Desorption experiments with 2 M NaOH inferred the reusability of the adsorbent. The results indicated that Pistia stratiotes biomass can be used as an effective and low-cost adsorbent to remove Cr(VI) ions from aqueous solutions. |
| 5 | Publishers | Organizing agency, location | WWW Publications, India |
| 6 | Contributor | Sponsor(s) | - |
| 7 | Date | Date (YYYY-MM-DD) | - |
| 8 | Type | Status & genre | Peer-reviewed Article |
| 8 | Type | Type | |
| 9 | Formate | File Formate | PDF |
| 10 | Identifier | Uniform Resource Identifier | Click Here |
| 10 | Identifier | Digital Object Identifier | |
| 11 | Source | Journal/conference title; vol., no. (Year) | Chemical Science Transactions, Volume 2 , Number (1), (2013) |
| 12 | Lanuguage | English=en | en |
| 13 | Relation | Supp.files | |
| 14 | Coverage | | - |
| 15 | Copyright | Copyright and permissions | |
Chemical Science Transactions | Chem Sci Trans | CST | Online Chemistry Journal | Open Access
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