A Novel Eco-Biosorbent for Decontamination of Hazardous Dye from Aqueous Medium

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Journal of Polymers and the Environment

DOI:https://doi.org/10.1007/S10924-016-0901-5· OSTI ID:22788358

Deniz, Fatih ^[1]

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1. Sinop University, Faculty of Engineering and Architecture, Department of Environmental Engineering (Turkey)

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.

• OSTI ID: 22788358
• Journal Information: Journal of Polymers and the Environment, Journal Name: Journal of Polymers and the Environment Journal Issue: 4 Vol. 25; ISSN 1566-2543
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AQUEOUS SOLUTIONS
BIOMASS
DECONTAMINATION
DIFFUSION
DYES
EXPERIMENTAL DATA
FREE ENERGY
FREE ENTHALPY
ISOTHERMS
MOLECULES
PH VALUE
REACTION KINETICS
SORPTION
WOOD WASTES