{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T07:01:56Z","timestamp":1778569316079,"version":"3.51.4"},"reference-count":52,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,2,17]],"date-time":"2023-02-17T00:00:00Z","timestamp":1676592000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Italian National FISR-CIPE Project \u201cInno-Sense\u201d","award":["CIPE n.78"],"award-info":[{"award-number":["CIPE n.78"]}]},{"name":"Italian National FISR-CIPE Project \u201cInno-Sense\u201d","award":["6277F79D-UNISAL036"],"award-info":[{"award-number":["6277F79D-UNISAL036"]}]},{"name":"Apulia region program \u201cRESEARCH FOR INNOVATION\u201d","award":["CIPE n.78"],"award-info":[{"award-number":["CIPE n.78"]}]},{"name":"Apulia region program \u201cRESEARCH FOR INNOVATION\u201d","award":["6277F79D-UNISAL036"],"award-info":[{"award-number":["6277F79D-UNISAL036"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The removal of pollutants, such as heavy metals, aromatic compounds, dyes, pesticides and pharmaceuticals, from water is still an open challenge. Many methods have been developed and exploited for the purification of water from contaminants, including photocatalytic degradation, biological treatment, adsorption and chemical precipitation. Absorption-based techniques are still considered among the most efficient and commonly used approaches thanks to their operational simplicity. In recent years, polydopamine-coated magnetic nanoparticles have emerged for the uptake of heavy metals in water treatment, since they combine specific affinity towards pollutants and magnetic separation capacity. In this context, this work focuses on the synthesis of polydopamine (PDA)-coated Super Paramagnetic Iron Oxide Nanoparticles (PDA@SPIONs) as adsorbents for Cu2+ ions, designed to serve as functional nanostructures for the removal of Cu2+ from water by applying a magnetic field. The synthetic parameters, including the amount of SPIONs and PDA, were thoroughly investigated to define their effects on the nanostructure features and properties. Subsequently, the ability of the magnetic nanostructures to bind metal ions was assessed on Cu2+-containing solutions. A systematic investigation of the prepared functional nanostructures was carried out by means of complementary spectroscopic, morphological and magnetic techniques. Inductively coupled plasma atomic emission spectroscopy (ICP-AES) measurements were performed in order to estimate the Cu2+ binding ability. The overall results indicate that these nanostructures hold great promise for future bioremediation applications.<\/jats:p>","DOI":"10.3390\/ma16041697","type":"journal-article","created":{"date-parts":[[2023,2,20]],"date-time":"2023-02-20T02:02:09Z","timestamp":1676858529000},"page":"1697","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Synthesis and Characterization of SPIONs Encapsulating Polydopamine Nanoparticles and Their Test for Aqueous Cu2+ Ion Removal"],"prefix":"10.3390","volume":"16","author":[{"given":"Giulia","family":"Siciliano","sequence":"first","affiliation":[{"name":"Department of Mathematics and Physics \u201cEnnio De Giorgi\u201d, University of Salento, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Institute of Nanotechnology, CNR-Nanotec, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Omnics Research Group, Via per Monteroni, 73100 Lecce, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7344-0563","authenticated-orcid":false,"given":"Antonio","family":"Turco","sequence":"additional","affiliation":[{"name":"Institute of Nanotechnology, CNR-Nanotec, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Omnics Research Group, Via per Monteroni, 73100 Lecce, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9265-134X","authenticated-orcid":false,"given":"Anna Grazia","family":"Monteduro","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Physics \u201cEnnio De Giorgi\u201d, University of Salento, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Institute of Nanotechnology, CNR-Nanotec, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Omnics Research Group, Via per Monteroni, 73100 Lecce, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6293-9388","authenticated-orcid":false,"given":"Elisabetta","family":"Fanizza","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy"},{"name":"Institute for Chemical and Physical Processes, CNR-IPCF SS Bari, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1911-9864","authenticated-orcid":false,"given":"Alessandra","family":"Quarta","sequence":"additional","affiliation":[{"name":"Institute of Nanotechnology, CNR-Nanotec, Via per Monteroni, 73100 Lecce, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4640-7204","authenticated-orcid":false,"given":"Roberto","family":"Comparelli","sequence":"additional","affiliation":[{"name":"Institute for Chemical and Physical Processes, CNR-IPCF SS Bari, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elisabetta","family":"Primiceri","sequence":"additional","affiliation":[{"name":"Institute of Nanotechnology, CNR-Nanotec, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Omnics Research Group, Via per Monteroni, 73100 Lecce, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. Lucia","family":"Curri","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy"},{"name":"Institute for Chemical and Physical Processes, CNR-IPCF SS Bari, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2107-2762","authenticated-orcid":false,"given":"Nicoletta","family":"Depalo","sequence":"additional","affiliation":[{"name":"Institute for Chemical and Physical Processes, CNR-IPCF SS Bari, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7669-0253","authenticated-orcid":false,"given":"Giuseppe","family":"Maruccio","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Physics \u201cEnnio De Giorgi\u201d, University of Salento, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Institute of Nanotechnology, CNR-Nanotec, Via per Monteroni, 73100 Lecce, Italy"},{"name":"Omnics Research Group, Via per Monteroni, 73100 Lecce, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1016\/j.powtec.2016.02.019","article-title":"Synthesis and characterization of new zeolite materials obtained from fly ash for heavy metals removal in advanced wastewater treatment","volume":"294","author":"Visa","year":"2016","journal-title":"Powder Technol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1016\/j.jiec.2017.07.026","article-title":"Copper removal from industrial wastewater: A comprehensive review","volume":"56","author":"Zaidi","year":"2017","journal-title":"J. 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