20.500.12556/DKUM-84918 Assessment of the Capability of Magnetic Nanoparticles to Recover Neodymium Ions from Aqueous Solution Magnetic nanoparticles (MNPs) have received increasing attention for various applications due to their fast synthesis, versatile functionalization, and recyclability by the application of a magnetic field. The high surface-to-volume ratio of MNP dispersions has suggested their use as an adsorbent for the removal of heavy metal ions. We investigated the applicability of MNPs composed of a maghemite core surrounded by a silica shell functionalized with aminopropylsilane, γ-Fe2O3-NH4OH@SiO2(APTMS), for the removal of neodymium ions (Nd3+) from aqueous solution. The MNPs were characterized for their size, composition, surface functionality and charge. Despite of the promising properties of MNPs, their removal from the aqueous dispersion with an external magnet was not sufficient to reliably quantify the adsorption of Nd3+ by UV-Vis spectroscopy. Magnetni nanodelci (MNP) so zaradi svoje hitre sinteze, vsestranske funkcionalizacije in možnosti recikliranja z uporabo magnetnega polja deležni vse večje pozornosti za različne aplikacije. Visoko razmerje med površino in prostornino disperzij MNP predstavlja zmožnost njihove uporabe kot adsorbenta za odstranjevanje ionov težkih kovin. Raziskali smo uporabnost MNP, sestavljenih iz maghemitnega jedra in obdanih s kremenčevo lupino, funkcionalizirano z aminopropilsilanom, γ-Fe2O3-NH4OH@SiO2 (APTMS), za odstranjevanje neodimovih ionov (Nd3+) iz vodne raztopine. MNP so bili karakterizirani glede na velikost, sestavo, površinsko funkcionalnost in naboj. Kljub obetavnim lastnostim MNP pa njihova odstranitev iz vodne disperzije z zunanjim magnetom ni zadostovala za zanesljivo kvantificiranje adsorpcije Nd3+ z UV-Vis spektroskopijo. rare earth elements maghemite nanoparticles UV-Vis spectroscopy adsorption redki elementi zemlje nanodelci spektroskopija adsorpcija true false true Slovensko kemijsko društvo (Slovenian Chemical Society) Angleški jezik Slovenski jezik https://acsi-journal.eu/index.php/ACSi Članek v reviji 2023-08-08 15:26:37 2023-08-08 15:26:37 2025-06-26 12:31:33 0000-00-00 00:00:00 2022 0 0 str. 826-836 Vol. 69 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2022-03-10 0000-00-00 2022-12-15 620.3 160368643 10.17344/acsi.2022.7570 1580-3155 Assessment_of_the_Capability_of_Ma-Ambroz-2022.pdf Assessment_of_the_Capability_of_Ma-Ambroz-2022.pdf 1 E19965ADF6868FA92825CEBE20DE0468 0d7f04b6abf00a441e03df320d33d18aa270103e4dd6560ecbd44206b8123c6e 84b841de-35ef-11ee-955c-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=169307 https://acsi-journal.eu/index.php/ACSi/article/view/7570/3584 0 94319117-35ef-11ee-955c-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=169308 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0