Uranium(VI) biosorption by sugar beet pulp: equilibrium, kinetic and thermodynamic studies

Uranium(VI) biosorption by sugar beet pulp: equilibrium, kinetic and thermodynamic studies

Native and chemically modified sugar beet pulp were used as a biosorbents for removal of uranium(VI) from the aqueous solution. The effects on the uranium(VI) uptake such as solution pH (2–9), adsorbent amount (50–500 mg), contact time (0–180 min), temperature (293–323 K) and initial concentration (...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2019-12, Vol.322 (3), p.2065-2078
Hauptverfasser: Nuhanović, M., Grebo, M., Draganović, S., Memić, M., Smječanin, N.
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Analysis
Aqueous solutions
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Machining
Nuclear Chemistry
Nuclear Physics
Organic chemistry
Physical Chemistry
Thermal properties
Thermodynamic equilibrium
Thermodynamics
Uranium
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Beschreibung
Zusammenfassung:Native and chemically modified sugar beet pulp were used as a biosorbents for removal of uranium(VI) from the aqueous solution. The effects on the uranium(VI) uptake such as solution pH (2–9), adsorbent amount (50–500 mg), contact time (0–180 min), temperature (293–323 K) and initial concentration (20–60 mg U L −1 ) were studied. The obtained maximum adsorption capacities according to Langmuir isotherm model for native and modified sugar beet pulps were 20.45 and 19.80 mg g −1 , respectively. Additionally, pseudo-second order kinetic model best fitted the experimental data.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-019-06877-z