Biosorption of Pb II and Ni II from aqueous solution by lichen Cladonia furcata biomass     
Yazarlar (4)
Ahmet Sarı
Karadeniz Teknik Üniversitesi, Türkiye
Prof. Dr. Mustafa TÜZEN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Doç. Dr. Özgür Doğan ULUÖZLÜ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Mustafa Soylak
Erciyes Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Biochemical Engineering Journal
Dergi ISSN 1369-703X Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 11-2007
Cilt No 37
Sayı 2
Sayfalar 151 / 158
DOI Numarası 10.1016/j.bej.2007.04.007
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S1369703X07001738
Özet
Equilibrium, thermodynamic and kinetic studies were carried out for the biosorption of Pb(II) and Ni(II) ions from aqueous solution using the lichen (Cladonia furcata) biomass. Langmuir, Freundlich and Dubinin–Radushkevich (D–R) isotherm models were applied to describe the biosorption of the metal ions onto C. furcata biomass. The influences of pH, biomass dosage, contact time and temperature of solution on the biosorption were studied. Langmuir model fitted the equilibrium data better than the Freundlich isotherm. The monolayer biosorption capacity of the biomass was found to be 12.3 and 7.9mg/g for Pb(II) and Ni(II) ions, respectively. From the D–R model, the mean free energy was calculated as 9.1kJ/mol for Pb(II) biosorption and 9.8kJ/mol for Ni(II) biosorption, indicating that the biosorption of both metal ions was taken place by chemical ion-exchange. Thermodynamic parameters, the change of free …
Anahtar Kelimeler
lichen biomass | Cladonia furcata | Pb(II) | Ni(II) | biosorption | isotherm | thermodynamics | kinetics