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A comprehensive characterization of the synthesized materials was conducted. The morphology of MnO\n                    <jats:sub>2<\/jats:sub>\n                    @EDTA-Ag in the form of a nanocoral reef was constructed of two-dimensional nanoplatelets and nanorod-like nanostructures. The optimal adsorption conditions proposed by the Plackett\u2013Burman design (PBD) that would provide a removal % of 99.95 were pH 5.5, a contact time of 32.0\u00a0min, a Cu(II) concentration of 11.2\u00a0mg L\n                    <jats:sup>\u22121<\/jats:sup>\n                    , an adsorbent dose of 0.05\u00a0g, and a temperature of 40.3\u00a0\u00b0C. The loading of Ag nanoparticles onto MnO\n                    <jats:sub>2<\/jats:sub>\n                    @EDTA improved the adsorption capability of MnO\n                    <jats:sub>2<\/jats:sub>\n                    @EDTA-Ag. Additionally, the recyclability of  MnO\n                    <jats:sub>2<\/jats:sub>\n                    @EDTA-Ag nanocoral reef was maintained at 80% after three adsorption\u2013desorption cycles, and there was no significant change in the XRD analysis before and after the recycling process, implying its stability. It was found that nanocoral reef-assisted EDTA formed a chelation\/complexation reaction between COO\n                    <jats:sup>\u2212<\/jats:sup>\n                    groups and C\u2013N bonds of EDTA with Cu(II) ions. In addition, X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) analysis proved the synergistic effect of the electrostatic interaction and chelation\/complexation was responsible for the removal mechanism of Cu(II). Also, the results demonstrated no significant variation in MnO\n                    <jats:sub>2<\/jats:sub>\n                    @EDTA-Ag removal efficiency for all the tested real water samples, revealing its efficacy in wastewater treatment. Therefore, the current study suggests that MnO\n                    <jats:sub>2<\/jats:sub>\n                    @EDTA-Ag has substantial potential to be used as a feasible adsorbent for probable hazardous metals remediation.\n                  <\/jats:p>","DOI":"10.1007\/s11356-023-30805-0","type":"journal-article","created":{"date-parts":[[2023,11,22]],"date-time":"2023-11-22T00:01:35Z","timestamp":1700611295000},"page":"123751-123769","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Functional Ag-EDTA-modified MnO2 nanocoral reef for rapid removal of hazardous copper from wastewater"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4205-0060","authenticated-orcid":false,"given":"Omnia I.","family":"Ali","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed B.","family":"Azzam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,11,22]]},"reference":[{"key":"30805_CR1","doi-asserted-by":"publisher","first-page":"5627","DOI":"10.21608\/ejchem.2021.69597.3527","volume":"64","author":"HA Ahmed","year":"2021","unstructured":"Ahmed HA, Soliman MSS, Othman SA (2021) Synthesis and characterization of magnetic nickel ferrite-modified montmorillonite nanocomposite for Cu (II) and Zn (II) ions removal from wastewater. 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