{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T16:18:19Z","timestamp":1783959499008,"version":"3.55.0"},"reference-count":74,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T00:00:00Z","timestamp":1773532800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"China Agriculture Research System of MOF, MARA","award":["CARS\u201348"],"award-info":[{"award-number":["CARS\u201348"]}]},{"DOI":"10.13039\/501100012428","name":"Central Public-interest Scientific Institution Basal Research Fund, CAFS","doi-asserted-by":"crossref","award":["2025A001"],"award-info":[{"award-number":["2025A001"]}],"id":[{"id":"10.13039\/501100012428","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Youth Fund Project of Hainan Provincial Natural Science Foundation of China","award":["324QN339"],"award-info":[{"award-number":["324QN339"]}]},{"name":"Key Labrotary of Control of Quality and Safety for Aquatic Products, Minisrty of Agriculture"},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["42077212"],"award-info":[{"award-number":["42077212"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Tiankai Higher Education Science and Technology Innovation Park Enterprise R&D Special Project","award":["23YFZXYC00019"],"award-info":[{"award-number":["23YFZXYC00019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gels"],"abstract":"<jats:p>Enrofloxacin (ENR), as a widely used antimicrobial agent in aquaculture, poses potential risks to ecosystems and human health due to its environmental persistence. Therefore, it is of great significance to explore efficient methods for removing ENR from aquaculture wastewater. In this study, a series of shrimp shell-derived aerogel (MBC300\u2013MBC700) were fabricated from Litopenaeus vannamei shells through chemical modification followed by pyrolysis at 300\u2013700 \u00b0C, and their adsorption performance and mechanisms toward ENR were systematically investigated. The modified porous materials exhibited a well-developed micro\u2013mesoporous structure, high specific surface area, and abundant surface functional groups. Meanwhile, MBC400 demonstrated the highest adsorption capacity for ENR, reaching 14.56 mg\/g, with a corresponding specific surface area of 77.71 m2\/g. The adsorption kinetics followed the pseudo-second-order model, and the isothermal data were better fitted by the Freundlich model, indicating a chemisorption-dominated, heterogeneous multilayer adsorption process. Thermodynamic analysis revealed that the adsorption was spontaneous (\u0394G &lt; 0) and endothermic (\u0394H &gt; 0). In regeneration experiments, 30% ethanol solution achieved the best desorption efficiency for MBC400, with adsorption efficiency remaining above 75% after three cycles. Based on the characterization and adsorption results, adsorption mechanism of ENR on MBC400 was elucidated as a synergistic effect of hydrogen bonding, \u03c0\u2013\u03c0 stacking, electrostatic interaction, and surface complexation. This study provides a novel strategy and theoretical basis for the high-value utilization of shrimp shell waste and for the efficient removal of fluoroquinolone antibiotics from aquaculture effluents.<\/jats:p>","DOI":"10.3390\/gels12030247","type":"journal-article","created":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T08:41:26Z","timestamp":1773650486000},"page":"247","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Valorized Shrimp Shell-Derived Aerogel for Trace Enrofloxacin Removal from Aquaculture Wastewater: Adsorption Performance and Mechanisms Exploration"],"prefix":"10.3390","volume":"12","author":[{"given":"Chengci","family":"Liu","sequence":"first","affiliation":[{"name":"Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, College of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, 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