{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T21:19:48Z","timestamp":1792271988153,"version":"4.4.0"},"reference-count":87,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The extensive use of ciprofloxacin (CIP) and subsequent environmental release led to its accumulation in aquatic environments, causing antibiotic resistance among microorganisms. Fe\u2010based compounds are known to be good adsorbents for organic compounds. The complexation between the functional groups in antibiotics and the metal ions and hydroxyl groups in Fe and Al oxides and oxyhydroxides can facilitate the adsorption. However, the interactions between CIP and naturally occurring Fe\u2013Al oxides and oxyhydroxides have not been extensively investigated. Hence, the present study aims to apply laterite (LT) and red earth (RE), two natural soils rich in Fe and Al oxides\/oxyhydroxides, to remove CIP in aqueous media. Batch adsorption experiments were conducted to determine the optimum adsorbent dose, initial adsorbate concentration, contact time, and pH. The CIP concentration was measured by a UV spectrophotometer at 273.1\u00a0nm (\u03bb max). RE exhibited higher CIP removal (12.6\u00a0mg\/g maximum adsorption capacity) compared to LT (4.3\u00a0mg\/g maximum adsorption capacity), at an optimal dose of 10\u00a0g\/L, 30\u2010min contact time. As RE is rich in ferrihydrite and LT is enriched with goethite and hematite, the two soils showed different interactions with CIP. The Freundlich model explained the CIP adsorption process (\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0=\u00a00.9937 for RE and\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0=\u00a00.9558 for LT) as multilayer adsorption occurred by electrostatic attraction, followed by chemisorption via COOH groups of CIP and OH groups of soils. Under all tested conditions, negligible CIP desorption (&lt;0.5%) is observed with RE, while LT showed\u00a0&lt;5% desorption. Desorption increased to 12% at pH 10 for RE and to 46% at pH 3\u20134 for LT. Even though both RE and LT effectively removed CIP from aqueous media, RE outperforms due to its effectiveness across a broader spectrum of environmental conditions.\n                  <\/jats:p>","DOI":"10.1002\/jeq2.70127","type":"journal-article","created":{"date-parts":[[2025,12,23]],"date-time":"2025-12-23T07:14:05Z","timestamp":1766474045000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Iron and aluminum oxides and oxyhydroxides rich soils as eco\u2010friendly adsorbents for ciprofloxacin in aqueous media"],"prefix":"10.1002","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-4653-5715","authenticated-orcid":false,"given":"U. S. Thilini","family":"Sachintha","sequence":"first","affiliation":[{"name":"Department of Geology, Faculty of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3269-0355","authenticated-orcid":false,"given":"Nadeesha H.","family":"Koralegedara","sequence":"additional","affiliation":[{"name":"Department of Geology, Faculty of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-0959-8436","authenticated-orcid":false,"given":"Ishani M.","family":"Wijekoon","sequence":"additional","affiliation":[{"name":"Department of Geology, Faculty of Science University of Peradeniya  Peradeniya Sri Lanka"},{"name":"Postgraduate Institute of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8538-782X","authenticated-orcid":false,"given":"Rasika","family":"Jinadasa","sequence":"additional","affiliation":[{"name":"Department of Veterinary Pathobiology, Faculty of Veterinary Medicine &amp; Animal Science University of Peradeniya  Peradeniya Sri 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