Magnetic silica nanoparticles adorned with a metal-organic framework; a novel nanosorbent for elimination of aqueous Pb ions contaminant

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dc.authoridZarrabi, Ali/0000-0003-0391-1769
dc.authoridZarepour, Atefeh/0000-0002-0347-5840
dc.authoridzamani, mohammadreza/0000-0002-7165-2343
dc.authorwosidZarrabi, Ali/U-2602-2019
dc.authorwosidZarepour, Atefeh/AAH-9225-2020
dc.contributor.authorRafie, Niloofar
dc.contributor.authorKhodadadi, Mohammad
dc.contributor.authorZamani, Mohammadreze
dc.contributor.authorZarepour, Atefeh
dc.contributor.authorZarrabi, Ali
dc.date.accessioned2024-05-19T14:43:00Z
dc.date.available2024-05-19T14:43:00Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe annual growth of water pollution resulting from the uncontrolled entry of heavy metals, like Pb2+ ions, is one of the most critical global concerns due to its direct and indirect effects on human life. The absorption of this component by the body could affect the nervous system via oxidative stress production or disturbing cellular biological mechanism. So, it is important to find an effective method for purifying the existing waters. This study aims to fabricate and compare the effect of two new nano-adsorbents (Fe3O4@ZIF-8 and Fe3O4@SiO2@ZIF-8) on removing Pb2+ ions from the aqueous solution. Accordingly, iron oxide nanoparticles were synthesized via coprecipitation method at first and then coated with a silica shell through the sol-gel method. Both nanoparticles were coated with a layer of metal-organic framework (MOF), ZIF-8, and analyzed with different physicochemical tests. In the following parts, the Pb2+ ion removal capability of the nano-adsorbents was evaluated in the presence of different parameters, including nanosorbent concentrations, contact time, pH, and pollutant concentrations. Results confirmed preparation of nanoparticles with a mean size of about 110 & PLUSMN; 10 nm and 80 & PLUSMN; 10 nm for Fe3O4@ZIF-8 and Fe3O4@SiO2@ZIF-8, respectively. Both nanoparticles showed the highest amount of pollutants removal (near 90% for both nanoparticles) at pH = 6 within 15 min of contact in the presence of 100 ppm Pb2+ ions. Besides, in the case of real samples, with a concentration of about 150 ppm of Pb2+ ions, they showed maximum adsorption of about 93.61% and 99.2% for Fe3O4@ZIF-8 and Fe3O4@SiO2@ZIF-8, respectively. The presence of iron oxide nanoparticles in the structure of this adsorbent makes it easy to separate them in a user-friendly method. A brief comparison between these nanosorbents indicates that Fe3O4@SiO2@ZIF-8 nanoparticles have better performance due to their higher porosity and surface area ratio and so it could be used as a cost-effective ideal nanosorbent candidate for easy removal of heavy metals from water.en_US
dc.identifier.doi10.1016/j.envres.2023.115694
dc.identifier.issn0013-9351
dc.identifier.issn1096-0953
dc.identifier.pmid36933638en_US
dc.identifier.scopus2-s2.0-85150789414en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1016/j.envres.2023.115694
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5309
dc.identifier.volume226en_US
dc.identifier.wosWOS:001053740700001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofEnvironmental Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240519_kaen_US
dc.subjectLeaden_US
dc.subjectNanosorbenten_US
dc.subjectHeavy Metalsen_US
dc.subjectIron Oxide Nanoparticlesen_US
dc.subjectMetal-Organic Frameworken_US
dc.titleMagnetic silica nanoparticles adorned with a metal-organic framework; a novel nanosorbent for elimination of aqueous Pb ions contaminanten_US
dc.typeArticleen_US

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