Polyacrylamide Functionalized Graphene Oxide/Alginate Beads for Removing Ciprofloxacin Antibiotics

Ciprofloxacin (CPX), a widely used antibiotic, was removed by synthesizing graphene oxide/calcium alginate-polyacrylamide (GO/Ca-Alg -PAM) beads, a three-dimensional double-network complex. The synthesis of GO/Ca-Alg -PAM beads was performed by crosslinking and cation exchange mechanisms with graphe...

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Bibliographic Details
Published in:Toxics (Basel) 2022-02, Vol.10 (2), p.77
Main Authors: Choi, Jung-Weon, Choi, Sang-June
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
alginate
Alginic acid
Antibiotics
Beads
Calcium alginate
Calcium oxide
Cation exchange
Cation exchanging
Ciprofloxacin
Crosslinking
Emission analysis
Equilibrium
Error analysis
Experiments
Field emission microscopy
Fourier analysis
Fourier transforms
Graphene
graphene oxide
Infrared analysis
Infrared spectroscopy
Isotherms
Lime
Polyacrylamide
Polymers
Scanning electron microscopy
Sodium
Sodium alginate
Spectrum analysis
Temperature dependence
Temperature effects
Thermogravimetric analysis
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Summary:Ciprofloxacin (CPX), a widely used antibiotic, was removed by synthesizing graphene oxide/calcium alginate-polyacrylamide (GO/Ca-Alg -PAM) beads, a three-dimensional double-network complex. The synthesis of GO/Ca-Alg -PAM beads was performed by crosslinking and cation exchange mechanisms with graphene oxide (GO), sodium alginate (Na-Alg), and polyacrylamide (PAM). The properties of GO/Ca-Alg -PAM beads were confirmed using field emission scanning electron microscopy, Fourier transform infrared spectroscopy, and a thermogravimetric analysis. Furthermore, isothermal adsorption experiments were performed and fitted using three isothermal adsorption models (Langmuir, Freundlich, and Temkin). The adsorption isotherm experimental data fit well with the Langmuir isotherm model with a value of 6.846 mg/g. In addition, the spontaneous reaction of the CPX adsorption using GO/Ca-Alg -PAM was confirmed by temperature-dependent experiments.
ISSN:2305-6304
2305-6304
DOI:10.3390/toxics10020077