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Screening of optimum composition of superparamagnetic nanocomposite microparticles modified with various layered double hydroxides for phosphorus removal

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dc.creator KARABOYACI, Mustafa
dc.creator Yazici, Huseyin
dc.creator Surmeli, Mehmet
dc.creator KILIÇ, Mehmet
dc.date 2022-10-01T00:00:00Z
dc.date.accessioned 2023-01-09T12:09:20Z
dc.date.available 2023-01-09T12:09:20Z
dc.identifier e7ca1137-3897-47c1-8256-0ae7d793a489
dc.identifier 10.1016/j.jwpe.2022.103001
dc.identifier https://avesis.sdu.edu.tr/publication/details/e7ca1137-3897-47c1-8256-0ae7d793a489/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/98491
dc.description Superparamagnetic nanocomposite microparticles (NCMPs) modified with various layered double hydroxides (LDHs) (MgFe, MgAl and their Zr-doped equivalents) were investigated for phosphorus (P) removal. Screening of optimum composition was performed based on the P removal performance of NCMP@LDH particles as well as their magnetic separability in a flow-through column as a function of NCMP content (100-1000 mg) and stability as a function of LDH content (20-100%). The results showed that except for NCMP@MgFe-Zr, all the other particles exhibited a partial dissolution of LDH components at each of the examined LDH contents. However, NCMP@MgFe-Zr showed no dissolution up to a LDH content of 60% at all, whereas a partial dissolution occurred at a LDH content of 80 and 100%. Results of magnetic separability test revealed that the NCMP@MgFe-Zr composed of 500 mg magnetic particle (NCMP) and 60% LDH was separated from the solution with a separa-tion efficiency of 96.9%, while lower NCMP contents resulted in lower separation efficiencies. P removal effi-ciency and specific removal capacity of the NCMP@MgFe-Zr with the optimized composition was found to be 18.5% and 53.1 mg/g, respectively. The crystal structure, chemical composition, surface morphology, crystallite size and particle size distribution, functional groups and magnetic properties of the NCMP and NCMP@MgFe-Zr particles were confirmed by various characterization analysis. The observed results clearly demonstrates that the NCMP@MgFe-Zr with the optimized composition remained stable during the removal experiments and enabled the removal of P under the conditions of acidic pH and relatively high P concentration without LDH dissolution.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title Screening of optimum composition of superparamagnetic nanocomposite microparticles modified with various layered double hydroxides for phosphorus removal
dc.type info:eu-repo/semantics/article


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