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Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions

[Image: see text] The Arabic gum-grafted-hydrolyzed polyacrylonitrile/ZnFe(2)O(4) (AG-g-HPAN@ZnFe(2)O(4)) as organic/inorganic adsorbent was obtained in three steps using grafted PAN onto Arabic gum in the presence of ZnFe(2)O(4) magnetic nanoparticles and then hydrolysis by alkaline solution. Fouri...

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Autores principales: Hassanzadeh-Afruzi, Fereshte, Esmailzadeh, Farhad, Heidari, Golnaz, Maleki, Ali, Nazarzadeh Zare, Ehsan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947993/
https://www.ncbi.nlm.nih.gov/pubmed/36844579
http://dx.doi.org/10.1021/acsomega.2c06555
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author Hassanzadeh-Afruzi, Fereshte
Esmailzadeh, Farhad
Heidari, Golnaz
Maleki, Ali
Nazarzadeh Zare, Ehsan
author_facet Hassanzadeh-Afruzi, Fereshte
Esmailzadeh, Farhad
Heidari, Golnaz
Maleki, Ali
Nazarzadeh Zare, Ehsan
author_sort Hassanzadeh-Afruzi, Fereshte
collection PubMed
description [Image: see text] The Arabic gum-grafted-hydrolyzed polyacrylonitrile/ZnFe(2)O(4) (AG-g-HPAN@ZnFe(2)O(4)) as organic/inorganic adsorbent was obtained in three steps using grafted PAN onto Arabic gum in the presence of ZnFe(2)O(4) magnetic nanoparticles and then hydrolysis by alkaline solution. Fourier transform infrared (FT-IR), energy-dispersive X-ray analysis (EDX), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), vibrating sample magnetometer (VSM), and the Brunauer–Emmett–Teller (BET) analysis analyses were used to characterize the chemical, morphological, thermal, magnetic, and textural properties of the hydrogel nanocomposite. The obtained result demonstrated that the AG-g-HPAN@ZnFe(2)O(4) adsorbent showed acceptable thermal stability with 58% char yields and superparamagnetic property with magnetic saturation (Ms) of 24 emu g(–1). The XRD pattern showed that the semicrystalline structure with the presence of ZnFe(2)O(4) has distinct peaks which displayed that the addition of zinc ferrite nanospheres to amorphous AG-g-HPAN increased its crystallinity. The AG-g-HPAN@ZnFe(2)O(4) surface morphology exhibits uniform dispersion of zinc ferrite nanospheres throughout the smooth surface of the hydrogel matrix, and its BET surface area was measured at 6.86 m(2)/g, which was higher than that of AG-g-HPAN as a result of zinc ferrite nanosphere incorporation. The adsorption effectiveness of AG-g-HPAN@ZnFe(2)O(4) for eliminating a quinolone antibiotic (levofloxacin) from aqueous solutions was investigated. The effectiveness of adsorption was assessed under several experimental conditions, including solution pH (2–10), adsorbent dose (0.0015–0.02 g) contact duration (10–60 min), and initial concentration (50–500 mg/L). The maximum adsorption capacity (Q(max)) of the produced adsorbent for levofloxacin was found to be 1428.57 mg/g (at 298 k), and the experimental adsorption data were well explained by the Freundlich isotherm model. The pseudo-second-order model satisfactorily described the adsorption kinetic data. The levofloxacin was mostly adsorbed onto the AG-g-HPAN@ZnFe(2)O(4) adsorbent via electrostatic contact and hydrogen bonding. Adsorption–desorption studies demonstrated that the adsorbent could be efficiently recovered and reused after four consecutive runs with no significant loss in adsorption performance.
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spelling pubmed-99479932023-02-24 Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions Hassanzadeh-Afruzi, Fereshte Esmailzadeh, Farhad Heidari, Golnaz Maleki, Ali Nazarzadeh Zare, Ehsan ACS Omega [Image: see text] The Arabic gum-grafted-hydrolyzed polyacrylonitrile/ZnFe(2)O(4) (AG-g-HPAN@ZnFe(2)O(4)) as organic/inorganic adsorbent was obtained in three steps using grafted PAN onto Arabic gum in the presence of ZnFe(2)O(4) magnetic nanoparticles and then hydrolysis by alkaline solution. Fourier transform infrared (FT-IR), energy-dispersive X-ray analysis (EDX), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), vibrating sample magnetometer (VSM), and the Brunauer–Emmett–Teller (BET) analysis analyses were used to characterize the chemical, morphological, thermal, magnetic, and textural properties of the hydrogel nanocomposite. The obtained result demonstrated that the AG-g-HPAN@ZnFe(2)O(4) adsorbent showed acceptable thermal stability with 58% char yields and superparamagnetic property with magnetic saturation (Ms) of 24 emu g(–1). The XRD pattern showed that the semicrystalline structure with the presence of ZnFe(2)O(4) has distinct peaks which displayed that the addition of zinc ferrite nanospheres to amorphous AG-g-HPAN increased its crystallinity. The AG-g-HPAN@ZnFe(2)O(4) surface morphology exhibits uniform dispersion of zinc ferrite nanospheres throughout the smooth surface of the hydrogel matrix, and its BET surface area was measured at 6.86 m(2)/g, which was higher than that of AG-g-HPAN as a result of zinc ferrite nanosphere incorporation. The adsorption effectiveness of AG-g-HPAN@ZnFe(2)O(4) for eliminating a quinolone antibiotic (levofloxacin) from aqueous solutions was investigated. The effectiveness of adsorption was assessed under several experimental conditions, including solution pH (2–10), adsorbent dose (0.0015–0.02 g) contact duration (10–60 min), and initial concentration (50–500 mg/L). The maximum adsorption capacity (Q(max)) of the produced adsorbent for levofloxacin was found to be 1428.57 mg/g (at 298 k), and the experimental adsorption data were well explained by the Freundlich isotherm model. The pseudo-second-order model satisfactorily described the adsorption kinetic data. The levofloxacin was mostly adsorbed onto the AG-g-HPAN@ZnFe(2)O(4) adsorbent via electrostatic contact and hydrogen bonding. Adsorption–desorption studies demonstrated that the adsorbent could be efficiently recovered and reused after four consecutive runs with no significant loss in adsorption performance. American Chemical Society 2023-02-10 /pmc/articles/PMC9947993/ /pubmed/36844579 http://dx.doi.org/10.1021/acsomega.2c06555 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Hassanzadeh-Afruzi, Fereshte
Esmailzadeh, Farhad
Heidari, Golnaz
Maleki, Ali
Nazarzadeh Zare, Ehsan
Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions
title Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions
title_full Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions
title_fullStr Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions
title_full_unstemmed Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions
title_short Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe(2)O(4) as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions
title_sort arabic gum-grafted-hydrolyzed polyacrylonitrile@znfe(2)o(4) as a magnetic adsorbent for remediation of levofloxacin antibiotic from aqueous solutions
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947993/
https://www.ncbi.nlm.nih.gov/pubmed/36844579
http://dx.doi.org/10.1021/acsomega.2c06555
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