{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T03:01:42Z","timestamp":1787022102223,"version":"build-2736575974"},"reference-count":74,"publisher":"Public Library of Science (PLoS)","issue":"3","license":[{"start":{"date-parts":[[2022,3,3]],"date-time":"2022-03-03T00:00:00Z","timestamp":1646265600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Plan for Science, Technology and Innovation (MAARIFAH), King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia","award":["12-WAT2623-02"],"award-info":[{"award-number":["12-WAT2623-02"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>\n                    The application of layered double hydroxides (LDHs) of MgFe and its composites with biochar of\n                    <jats:italic>Eucalyptus camdulensis<\/jats:italic>\n                    (Eb) and ethylenediaminetetraacetic acid (EDTA) was explored in a batch study to mitigate toxic lead ions (Pb\n                    <jats:sup>2+<\/jats:sup>\n                    ) from synthetic wastewater solutions. SEM images revealed that MgFe\/LDH composites with Eb were successfully formed, while FTIR spectra confirmed the successful adsorption of Pb\n                    <jats:sup>2+<\/jats:sup>\n                    onto the MgFe\/LDH and composite adsorbents. Batch equilibrium was attained after 60 min, then the adsorption capacity gradually increased. An increase in adsorption capacity (and a 60% decrease in the percentage removal) was observed by increasing the initial Pb\n                    <jats:sup>2+<\/jats:sup>\n                    concentration, and the highest value was 136 mg g\n                    <jats:sup>-1<\/jats:sup>\n                    for MgFe\/LDH-Eb_EDTA. A 50\u201360% increase in both the adsorption capacities and percent removal was seen in the pH range of 2\u20136. The second-order kinetic model had a nearly perfect fitting, suggesting that chemisorption was the mechanism controlling adsorption. The Langmuir isotherm model best presented the adsorption data, suggesting that the Pb\n                    <jats:sup>2+<\/jats:sup>\n                    adsorption was monolayer, and predicted a better affinity between the adsorbent surface and absorbed Pb\n                    <jats:sup>2+<\/jats:sup>\n                    for MgFe\/LDH-Eb_EDTA in comparison to the other two adsorbents. The D\u2013R isotherm suggested that the adsorption system was physical based on\n                    <jats:italic>E<\/jats:italic>\n                    values for all three adsorbents, while the Temkin isotherm model suggested that Pb\n                    <jats:sup>2+<\/jats:sup>\n                    adsorption was heterogeneous. Finally, the Sips and R\u2013P isotherms predicted that the adsorption of Pb\n                    <jats:sup>2+<\/jats:sup>\n                    on the surface of the adsorbents was homogeneous and heterogeneous.\n                  <\/jats:p>","DOI":"10.1371\/journal.pone.0265024","type":"journal-article","created":{"date-parts":[[2022,3,3]],"date-time":"2022-03-03T14:26:13Z","timestamp":1646317573000},"page":"e0265024","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":13,"title":["Ethylenediaminetetraacetate functionalized MgFe layered double hydroxide\/biochar composites for highly efficient adsorptive removal of lead ions from aqueous solutions"],"prefix":"10.1371","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8283-9958","authenticated-orcid":true,"given":"M. T.","family":"Amin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. 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