Innovative alginate-clay shell and magnetite-gelatin core composite for multifaceted contaminant removal: Cadmium, thiabendazole and bacterial adsorption from aqueous solutions

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dc.authorid0000-0001-8727-5143
dc.authorid0000-0003-4886-3860
dc.contributor.authorİlktaç, Raif
dc.contributor.authorBayır, Ece
dc.date.accessioned2025-02-11T11:20:09Z
dc.date.available2025-02-11T11:20:09Z
dc.date.issued2024
dc.departmentEge Üniversitesi
dc.description.abstractIn this study, a novel magnetic composite adsorbent with an alginate-chamotte clay outer layer and a gelatin-magnetite core was synthesised for effective contaminant removal from aqueous solutions. The alginate component ensures biocompatibility, chamotte clay enhances adsorption, gelatin provides mechanical strength, and magnetite enables easy recovery of the adsorbent. The composite material was characterised using Fourier-transform infrared, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy-energy-dispersive X-ray analysis, micro-computed tomography, Brunauer-Emmett-Teller analysis and dynamic mechanical analysis techniques. Response surface methodology was employed to optimise cadmium and thiabendazole adsorption. Optimal conditions for cadmium removal were achieved at pH 7 using 500 mg of adsorbent, with a 30-min contact time and a 5 mL sample volume. Additionally, thiabendazole adsorption was optimal at pH 3, with a 65-min contact time. Thermodynamic and kinetic experiments revealed that both adsorption processes were spontaneous and endothermic and followed a pseudo-second-order model. Cadmium adsorption aligned with Langmuir isotherm , while thiabendazole adsorption followed Freundlich isotherm . The adsorbent also showed high antibacterial efficiency, effectively removing both Gram-positive S. aureus and Gram-negative E. coli, with adsorption capacities of 43.86 mg g-1 for cadmium, 5.01 mg g-1 for thiabendazole, 2.5 × 1010 CFU g-1 for E. coli and 6.7 × 1010 CFU g-1 for S. aureus. These results highlight the multifunctional potential of the adsorbent for wastewater treatment.
dc.identifier.citationIlktaç, R., & Bayir, E. (2025). Innovative alginate–clay shell and magnetite–gelatin core composite for multifaceted contaminant removal: Cadmium, thiabendazole and bacterial adsorption from aqueous solutions. International Journal of Biological Macromolecules, 289. https://doi.org/10.1016/j.ijbiomac.2024.138817
dc.identifier.doi10.1016/j.ijbiomac.2024.138817
dc.identifier.endpage19
dc.identifier.issn0141-8130
dc.identifier.issn1879-0003
dc.identifier.issueFeb
dc.identifier.pmid39694371
dc.identifier.scopus2-s2.0-85212448165
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2024.138817
dc.identifier.urihttps://hdl.handle.net/11454/116037
dc.identifier.volume289
dc.identifier.wosWOS:001392004900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorİlktaç, Raif
dc.institutionauthorBayır, Ece
dc.institutionauthorid0000-0001-8727-5143
dc.institutionauthorid0000-0003-4886-3860
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofInternational Journal of Biological Macromolecules
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAlginate
dc.subjectBioremediation
dc.subjectGelatin
dc.titleInnovative alginate-clay shell and magnetite-gelatin core composite for multifaceted contaminant removal: Cadmium, thiabendazole and bacterial adsorption from aqueous solutions
dc.typeArticle

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