Azo Dye Removal Using Free and Immobilized Fungal Biomasses: Isotherms, Kinetics and Thermodynamic Studies 


Vol. 19,  No. 4, pp. 877-886, Apr.  2018
10.1007/s12221-018-7875-y


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  Abstract

In this study, Lentinus concinnus biomass was immobilized in polyvinyl alcohol/polyethyleneoxide hydrogels (PVA/PEO; referred as composite biomass) and used for removal of Reactive Yellow 86 dye (RY-86) from aqueous solution using free fungal biomass as a control system. The free fungal and composite fungal biomasses were characterized using ATR-FTIR, SEM and analytical methods. FTIR studies of the adsorbent preparations show that carboxylate, hydroxyl and amine groups should be involved in adsorption of the RY-86 dye. The adsorption of RY-86 dye on these adsorbents increased as the initial concentration of RY-86 dye in the medium increased up to 200 mg/l. The maximum RY-86 dye adsorption for the free fungal and composite fungal biomasses, was obtained as 190.2 and 87.6, respectively, using 200 mg/l initial dye concentration, at 25 , and at pH 5.0 with 2.0 h contact. The equilibrium data were well described with the Freundlich and Temkin isotherm models. The adsorption of RY-86 dye was fitted best by the pseudo second-order kinetic model. Thermodynamic parameters (Go, Ho, and So) showed that RY-86 dye adsorption on both adsorbents were spontaneous process.

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  Cite this article

[IEEE Style]

G. B. a. M. Yilmaz, "Azo Dye Removal Using Free and Immobilized Fungal Biomasses: Isotherms, Kinetics and Thermodynamic Studies," Fibers and Polymers, vol. 19, no. 4, pp. 877-886, 2018. DOI: 10.1007/s12221-018-7875-y.

[ACM Style]

Gulay Bayramoglu and Meltem Yilmaz. 2018. Azo Dye Removal Using Free and Immobilized Fungal Biomasses: Isotherms, Kinetics and Thermodynamic Studies. Fibers and Polymers, 19, 4, (2018), 877-886. DOI: 10.1007/s12221-018-7875-y.

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