Experimental study to remediate acid fuchsin dye using laccase-modified zeolite from aqueous solutions
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
HARD Publishing Company
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This paper studies, the removal of acid fuchsin dye from aqueous solutions using zeolite natural material after its modification with laccase from Russulaceae (Lactarius volemus). Batch adsorption experiments were performed as a function of pH, contact time, temperature, and adsorbent dosage. The optimum results were obtained at pH 5, contact time of 60 min, temperature of 60ºC, and an adsorbent dosage of 1.5 mg/mL. The isotherm studies show that the adsorption experimental data are fitted well by Langmuir isotherm model. The adsorption capacity found is 31 mg/g. The kinetics of AFD adsorption on LMZ is best described with the pseudo-first-order kinetics model. Thermodynamic parameters including Gibbs free energy, enthalpy, and entropy changes indicate that the adsorption of Acid Fuchsin dye onto laccase-modified zeolite is feasible, spontaneous, and exothermic. The results show that laccase-modified zeolite can be used as an alternative lowcost adsorbent for dye removal from aqueous solutions. © 2015, HARD Publishing Company. All rights reserved.
Açıklama
Anahtar Kelimeler
Acid fuchsin dye removal, Adsorption isotherms, Adsorption kinetics, Laccase-modified zeolite, Lactarius volemus, Russulaceae, Acid fuchsin dye removal, Adsorption isotherms, Adsorption kinetics, Laccase-modified zeolite, Lactarius volemus, Russulaceae
Kaynak
Polish Journal of Environmental Studies
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
24
Sayı
1
