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Aluminum deposition at 200 W significantly altered the biochar\u2019s surface morphology and chemistry, introducing Al-related active sites that enhanced interactions with anionic drug species. Kinetic studies revealed that the PSO model best describes the data (R2 = 0.995 for Clz and 0.993 for Dic), with rapid adsorption equilibrium reached within 120 min for Clz and 80 min for Dic. Equilibrium data were best fitted by the Sips model, indicating heterogeneous adsorption. Increasing temperature from 298 to 328 K enhanced the maximum adsorption capacity (Qms) from 260 to 437.8 mg g\u20131 for Clz and from 277 to 442.8 mg g\u20131 for Dic. Thermodynamic parameters confirmed spontaneous adsorption and a weakly exothermic process. The application in a real hospital wastewater demonstrated 95% removal of Dic and &amp;gt;88% removal of other pharmaceuticals, reducing total drug concentration from approximately 50\u20135 mg L\u20131. Regeneration tests showed stable performance in the sixth cycle (250\u2013270 mg g\u20131), with a gradual loss of efficiency in subsequent cycles due to partial aluminum leaching. These results highlight AlAB_200W as a promising, high-capacity, and scalable adsorbent for pharmaceutical remediation in complex aqueous matrices.<\/jats:p>","DOI":"10.1021\/acsomega.6c05238","type":"journal-article","created":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T19:02:17Z","timestamp":1787079737000},"page":"51483-51497","source":"Crossref","is-referenced-by-count":0,"title":["Adsorption of Pharmaceutical Contaminants from a Real\nHospital Effluent Using Ac\u0327ai\u0301 Biomass-Derived Biochar\nModified via Magnetron Sputtering"],"prefix":"10.1021","volume":"11","author":[{"given":"Ronaldo Antunes","family":"Funari Junior","sequence":"first","affiliation":[{"name":"Universidade Federal de Santa Maria , , ,","place":["Santa Maria, State of Rio Grande do Sul, Brazil, 97105-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sabrina Frantz","family":"Lu\u0308tke","sequence":"additional","affiliation":[{"name":"Universidade Federal de Santa Maria , , ,","place":["Santa Maria, State of Rio Grande do Sul, Brazil, 97105-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luis Felipe Oliveira","family":"Silva","sequence":"additional","affiliation":[{"name":"Corporacio\u0301n Universitaria de la Costa , ,","place":["Barranquilla, Colombia, 080002"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcos Leandro Silva","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Corporacio\u0301n Universitaria de la Costa , ,","place":["Barranquilla, Colombia, 080002"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex","family":"Castro","sequence":"additional","affiliation":[{"name":"Universidade Federal do Oeste do Para\u0301 , , ,","place":["Santarem, Para\u0301, Brazil, 68035-110"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4413-8138","authenticated-orcid":true,"given":"Guilherme Luiz","family":"Dotto","sequence":"additional","affiliation":[{"name":"Universidade Federal de Santa Maria , , ,","place":["Santa Maria, State of Rio Grande do Sul, Brazil, 97105-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,18]]},"reference":[{"key":"2026090307200953600_cit1","doi-asserted-by":"publisher","first-page":"437","DOI":"10.1039\/C7NJ03214E","article-title":"Adsorption of diclofenac\non a magnetic adsorbent based on maghemite: experimental and theoretical\nstudies","volume":"42","author":"Leone","year":"2018","journal-title":"New J. 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