A Novel Eco-Biosorbent for Decontamination of Hazardous Dye from Aqueous Medium
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Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer/Plenum Publishers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A novel multi-component biosorbent consisted of pine, oak, hornbeam and fir sawdust biomasses was used to eliminate a common hazardous dye (Malachite green, MG) from aqueous solution. The influences of different parameters like solution pH, biosorbent amount, dye concentration and contact time on the removal process were thoroughly studied to evaluate optimum biosorption conditions. The pseudo-first-order, pseudo-second-order, Elovich, logistic and intra-particle diffusion models were used to describe the biosorption kinetics. Logistic model represented the kinetic experimental data well. The experimental equilibrium biosorption data were analyzed by Freundlich, Langmuir and Dubinin-Radushkevich isotherms. Freundlich model fitted better with the experimental data compared to others. In addition, the mean free energy obtained from Dubinin-Radushkevich model and the standard Gibbs free energy change indicated that the nature of biosorption was feasible, spontaneous and physical type. Overall, the novel eco-biosorbent could be used as a promising biosorbent to remove such unsafe dye molecules from aqueous environments.
Açıklama
Anahtar Kelimeler
Eco-biosorbent, Sawdust, Biosorption, Dyes
Kaynak
Journal of Polymers and the Environment
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
25
Sayı
4
