Removal of ciprofloxacin from aqueous solution using humic acid- and levulinic acid- coated Fe^sub 3^O^sub 4^ nanoparticles

Humic acid (HA)- and levulinic acid (LA)-coated magnetic Fe3O4 nanoparticles were prepared and subsequently characterized using scanning electron microscopy, X-ray diffraction spectroscopy, Fourier transformer infrared spectroscopy, thermogravimetric analysis, particle size distribution analysis, an...

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Bibliographic Details
Published in:Chemical engineering research & design 2017-07, Vol.123, p.259
Main Authors: Danalioglu, Selen Tugba, Bayazit, Sahika Sena, Kerkez, Özge, Alhogbi, Basma G, Salam, Mohamed Abdel
Format: Article
Language:English
Subjects:
Adsorption
Antibiotics
Aqueous solutions
Coating
Desorption
Electron microscopy
Humic acids
Infrared analysis
Iron oxides
Kinetics
Levulinic acid
Nanoparticles
Organic chemicals
Particle size distribution
Scanning electron microscopy
Spectroscopic analysis
Thermogravimetric analysis
X-ray diffraction
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Summary:Humic acid (HA)- and levulinic acid (LA)-coated magnetic Fe3O4 nanoparticles were prepared and subsequently characterized using scanning electron microscopy, X-ray diffraction spectroscopy, Fourier transformer infrared spectroscopy, thermogravimetric analysis, particle size distribution analysis, and zeta-potential analysis. These magnetic nanoparticles were used for ciprofloxacin adsorption from aqueous solutions. Non-linear Langmuir and Freundlich adsorption isotherm models were used to explain the adsorption equilibria. The Langmuir adsorption capacities (qm) were 101.93 mg/g for HA-coated Fe3O4 and 53.76 mg/g for LA-coated Fe3O4. The appropriate contact times were 40 min for HA-coated Fe3O4 and 60 min for LA-coated Fe3O4. The adsorption rates and mechanisms were determined using pseudo-first-order and pseudo-second-order kinetic models. After the adsorption studies, the loaded nanoparticles were used for desorption studies, and their desorption kinetics were investigated.
ISSN:0263-8762
1744-3563