Adsorption of U(VI) from aqueous solution by Triocthylamine (TOA) functionalized magnetite nanoparticles as a novel adsorbent

JOURNAL OF ADVANCES IN CHEMISTRY

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Field Value
 
Title Adsorption of U(VI) from aqueous solution by Triocthylamine (TOA) functionalized magnetite nanoparticles as a novel adsorbent
 
Creator Mansouri, Nemat
Noaparast, Mohammad
Saberyan, Kamal
 
Subject Chemistry, Mining, Mineral processing
U (VI); MACS process; Magnetite Nanoparticles; TOA; Adsorption isotherm; Kinetics
 
Description Adsorption of U (VI) from aqueous solutions was investigated using magnetically assisted chemical separation (MACS) process. In the present study, Triocthylamine (TOA) functionalized magnetite nanoparticles (TOAFMNPs) were applied as a novel adsorbent for adsorption of U (VI) from aqueous solutions. The effects of initial pH, Triocthylamine to magnetite nanoparticles weight ratio, amount of adsorbent, stirring time and initial U(VI) concentration on U(VI) adsorption efficiency were investigated by batch experiments. The adsorption of U(VI) using this adsorbent was pH dependent, and the optimal pH was 5.5. In kinetics studies, the adsorption equilibrium can be reach within 20 min., and the experimental data were well fitted by the pseudo-second-order model. The highest value of U(VI) adsorption (93.8%) was achieved in optimum conditions. The Langmuir isotherm model correlates well with the U(VI) adsorption equilibrium data for the concentration range 10-80 mg/l. The maximum U(VI) adsorption capacity onto adsorbent was 27.5 mg/g at room temperature. Present study suggests that TOAFMNPs could be employed as a potential adsorbent for U(VI) adsorption, and also could provide a simple and fast separation method for removal of U(VI) ion from solutions
 
Publisher CIRWORLD
 
Date 2014-04-04
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://cirworld.com/index.php/jac/article/view/2290
 
Source JOURNAL OF ADVANCES IN CHEMISTRY; Vol 10 No 3; 2403-2414
2321-807X
 
Language eng
 
Relation http://cirworld.com/index.php/jac/article/view/2290/2227
 
Rights Copyright (c) 2014 JOURNAL OF ADVANCES IN CHEMISTRY
 

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