CoFe2O4@methylcellulose synthesized as a new magnetic nanocomposite to tetracycline adsorption: modeling, analysis, and optimization by response surface methodology

In this study, CoFe 2 O 4 @methycellulose (MC) was prepared as a novel magnetic nanocomposite by a facile, fast, and new microwave-assisted method using iron and cobalt salts in the presence of MC as a green biopolymer in alkaline medium and was then structurally evaluated by FESEM, EDS, Mapping, BE...

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Bibliographic Details
Published in:Journal of polymer research 2021-05, Vol.28 (5), Article 192
Main Authors: Nasiri, Alireza, Malakootian, Mohammad, Shiri, Marziyeh Ansari, Yazdanpanah, Ghazal, Nozari, Majid
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Biopolymers
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Cobalt ferrites
Industrial Chemistry/Chemical Engineering
Magnetic properties
Nanocomposites
Optimization
Original Paper
Polymer Sciences
Response surface methodology
Surface chemistry
Synthesis
Wastewater
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Summary:In this study, CoFe 2 O 4 @methycellulose (MC) was prepared as a novel magnetic nanocomposite by a facile, fast, and new microwave-assisted method using iron and cobalt salts in the presence of MC as a green biopolymer in alkaline medium and was then structurally evaluated by FESEM, EDS, Mapping, BET, VSM, XRD, TGA, and FTIR. Effective parameters on tetracycline (TC) removal such as pH, initial TC concentration, adsorbent dosage, and contact time were examined. The central composite design (CCD)–based response surface methodology (RSM) was employed to design the experiments and find optimal conditions. CoFe 2 O 4 @MC was synthesized with the particle size of about 50 nm, magnetic properties, and high specific surface area. The maximum TC adsorption efficiencies using CoFe 2 O 4 @MC from synthetic and real wastewater samples under optimal conditions were 79.45% and 74.85%, respectively. The data of TC adsorption on CoFe 2 O 4 @MC were fitted well with pseudo–second order kinetic and Langmuir isotherm models. The results of thermodynamic data indicated the exothermic and spontaneous nature of TC adsorption process using CoFe 2 O 4 @MC. CoFe 2 O 4 @MC showed high efficiency and chemical stability after 5 runs. Therefore, CoFe 2 O 4 @MC nanocomposite can be applied as a good and practical adsorbent for removing TC from synthetic and real wastewater.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-021-02540-y