Biosorption of copper (II) onto immobilized cells of Pycnoporus sanguineus from aqueous solution: equilibrium and kinetic studies
| Autor: | Subhash Bhatia, Yus Azila Yahaya, Mashitah Mat Don |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis Metal ions in aqueous solution Inorganic chemistry chemistry.chemical_element symbols.namesake Adsorption Spectroscopy Fourier Transform Infrared Environmental Chemistry Freundlich equation Biomass Waste Management and Disposal Pycnoporus sanguineus Aqueous solution biology Chemistry Biosorption Temperature Langmuir adsorption model Cells Immobilized Hydrogen-Ion Concentration biology.organism_classification Pollution Copper Pycnoporus Solutions Kinetics symbols Thermodynamics |
| Zdroj: | Journal of hazardous materials. 161(1) |
| ISSN: | 0304-3894 |
| Popis: | The ability of white-rot fungus, Pycnoporus sanguineus to adsorb copper (II) ions from aqueous solution is investigated in a batch system. The live fungus cells were immobilized into Ca-alginate gel to study the influence of pH, initial metal ions concentration, biomass loading and temperature on the biosorption capacity. The optimum uptake of Cu (II) ions was observed at pH 5 with a value of 2.76 mg/g. Biosorption equilibrium data were best described by Langmuir isotherm model followed by Redlich–Peterson and Freundlich models, respectively. The biosorption kinetics followed the pseudo-second order and intraparticle diffusion equations. The thermodynamic parameters enthalpy change (10.16 kJ/mol) and entropy change (33.78 J/mol K) were determined from the biosorption equilibrium data. The FTIR analysis showed that OH, NH, C H, C O, COOH and C N groups were involved in the biosorption of Cu (II) ions onto immobilized cells of P. sanguineus . The immobilized cells of P. sanguineus were capable of removing Cu (II) ions from aqueous solution. |
| Databáze: | OpenAIRE |
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