Biosorption properties of Morus alba L. for Cd (II) ions removal from aqueous solutions
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The abundantly available industrial waste product Morus alba L. pomace (MAP) is one of the cost-effective biosorbent for removal of metal ions from aqueous solutions. Hence, in the present study, we aimed to test the ability of MAP to remove Cd(II) ions through batch biosorption process. Firstly, MAP was characterized using several techniques, and then the influence of various experimental parameters such as initial pH of the aqueous solution, initial Cd(II) concentration, contact time, MAP concentration, and temperature were evaluated upon the biosorption process. It was found that the maximum uptake of Cd(II) ions occurred at initial pH 6.0 and optimum contact time was observed as 60 min. Cd(II) ions adsorption on MAP analyzed by the Langmuir and Freundlich isotherm models and the maximum monolayer biosorption capacity of MAP was found to be 21.69 mg g -1 by using the Langmuir isotherm model. The pseudo-first-order, pseudo-second-order, Elovich, and intraparticle diffusion models were employed to describe the biosorption kinetics. In order to investigate the thermodynamic properties of the biosorption process, the changes in the Gibbs free energy (â?†G), enthalpy (â?†H), and entropy (â?†S) were also evaluated and it has been concluded that the process was feasible, spontaneous, and endothermic in the temperature range of 5-40 C. © 2012 Springer Science+Business Media Dordrecht.
Açıklama
Anahtar Kelimeler
Biosorption, Cadmium, Kinetics, Morus alba L. pomace, Removal, Thermodynamics, Biosorption capacity, Biosorption kinetics, Experimental parameters, Intraparticle diffusion models, Langmuir and Freundlich isotherm models, Langmuir isotherm models, Morus alba, Pseudo second order, Adsorption, Biosorption, Cadmium, Dyes, Enzyme kinetics, Isotherms, Metal ions, Monolayers, Plants (botany), Removal, Thermodynamics, Cadmium compounds, cadmium, absorption, aqueous solution, cadmium, concentration (composition), cost-benefit analysis, enthalpy, entropy, experimental study, parameterization, pH, reaction kinetics, thermodynamics, tree, anaerobic digestion, article, biosorption, correlation coefficient, enthalpy, entropy, isotherm, kinetics, moisture, Morus alba, pH, physical chemistry, temperature, thermodynamics, waste component removal, Adsorption, Biodegradation, Environmental, Cadmium, Cations, Divalent, Hydrogen-Ion Concentration, Morus, Temperature, Waste Disposal, Fluid, Water Pollutants, Chemical, Morus alba, Biosorption, Cadmium, Kinetics, Morus alba L. pomace, Removal, Thermodynamics, Biosorption capacity, Biosorption kinetics, Experimental parameters, Intraparticle diffusion models, Langmuir and Freundlich isotherm models, Langmuir isotherm models, Morus alba, Pseudo second order, Adsorption, Biosorption, Cadmium, Dyes, Enzyme kinetics, Isotherms, Metal ions, Monolayers, Plants (botany), Removal, Thermodynamics, Cadmium compounds, cadmium, absorption, aqueous solution, cadmium, concentration (composition), cost-benefit analysis, enthalpy, entropy, experimental study, parameterization, pH, reaction kinetics, thermodynamics, tree, anaerobic digestion, article, biosorption, correlation coefficient, enthalpy, entropy, isotherm, kinetics, moisture, Morus alba, pH, physical chemistry, temperature, thermodynamics, waste component removal, Adsorption, Biodegradation, Environmental, Cadmium, Cations, Divalent, Hydrogen-Ion Concentration, Morus, Temperature, Waste Disposal, Fluid, Water Pollutants, Chemical, Morus alba
Kaynak
Environmental Monitoring and Assessment
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
185
Sayı
7
