Capacity and Modeling of Acid Blue 113 Dye Adsorption onto Chitosan Magnetized by Fe2O3 Nanoparticles

A chitosan polymer was magnetized by coating with magnetite Fe 2 O 3 nanoparticles, and the resultant material (C-Fe 2 O 3 ) was first characterized through scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, transmission electron microscopy, atomic force microscopy, the...

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Bibliographic Details
Published in:Journal of polymers and the environment 2022, Vol.30 (1), p.344-359
Main Authors: Al-Musawi, Tariq J., Mengelizadeh, Nezamaddin, Al Rawi, Orabi, Balarak, Davoud
Format: Article
Language:English
Subjects:
Adsorption
Adsorptivity
Aqueous solutions
Atomic force microscopy
Chemistry
Chemistry and Materials Science
Chi-square test
Chitosan
Color removal
Dyes
Efficiency
Electron microscopy
Endothermic reactions
Environmental Chemistry
Environmental Engineering/Biotechnology
Ferric oxide
Fourier analysis
Fourier transforms
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared spectroscopy
Kinetics
Magnesium sulfate
Magnetite
Materials Science
Mathematical models
Microscopy
Nanoparticles
Original Paper
Polymer Sciences
Polymers
Process parameters
Regeneration
Scanning electron microscopy
Shelf life
Sodium carbonate
Sodium chloride
Sodium nitrates
Spectrum analysis
Statistical analysis
Statistical tests
Transmission electron microscopy
X-ray spectroscopy
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Summary:A chitosan polymer was magnetized by coating with magnetite Fe 2 O 3 nanoparticles, and the resultant material (C-Fe 2 O 3 ) was first characterized through scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, transmission electron microscopy, atomic force microscopy, thermogravimetric, X-ray diffractometry, Fourier transform infrared spectroscopy, Brunauer–Emmett–Teller, and point of zero charge analyses. C-Fe 2 O 3 was then employed as a separable and efficient adsorptive agent to remove acid blue 113 (AB113) dye from aqueous solution. The removal efficiency was optimized at different environmental parameter values (pH 3–11, C-Fe 2 O 3 dose: 0.1–1 g/L, initial AB113 dye concentration: 10–100 mg/L, adsorption time: 0–300 min, and temperature: 15–45 °C). Under optimum conditions, an AB113 dye removal efficiency of 99.68% was achieved. In addition, the effect of the presence of NaCl, NaNO 3 , Na 2 CO 3 , and MgSO 4 ions on the AB113 dye removal efficiency could be ranked as NaCl > NaNO 3  > MgSO 4  > Na 2 CO 3 . The statistical analysis using the coefficient of determination, root mean square error, chi-square test, sum of squared errors, and average relative error showed that the Freundlich and pseudo-second-order equations were the best mathematical models for fitting the isothermal and kinetics data. Further kinetics analyses showed that the adsorption of AB113 molecules on C-Fe 2 O 3 active sites was dominated by the intraparticle diffusion process. Thermodynamic parameters indicated that the AB113 dye adsorption process was favorable, endothermic, and spontaneous. Furthermore, an increase in temperature had a positive impact on AB113 dye removal. The regeneration study confirmed the excellent shelf life of C-Fe 2 O 3 , with only a slight loss in the removal efficiency (
ISSN:1566-2543
1572-8919
DOI:10.1007/s10924-021-02200-8