Adsorption of uranium(VI) from aqueous solution by nonliving Sargassum fusiforme biomass

Adsorption of uranium(VI) from aqueous solution by nonliving Sargassum fusiforme biomass | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Adsorption of uranium(VI) from aqueous solution by nonliving Sargassum fusiforme biomass Jinfeng Fu, Zhengji Yi, Jian Liu, Rongying Zeng, Wenjin Ni This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7752052/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 14 Feb, 2026 Read the published version in Journal of Radioanalytical and Nuclear Chemistry → Version 1 posted You are reading this latest preprint version Abstract Sargassum fusiforme (hijiki) dry powder was used to adsorb U(VI) from simulated wastewater. Environmental factors like reaction time, pH, temperature, and initial U(VI) concentration were examined. Optimal removal occurred at pH 5.0. The process followed pseudo-second-order kinetics and Langmuir isotherm, indicating chemisorption with a maximum capacity of 155.28 mg/g. Thermodynamics analyses implied the adsorption was endothermic and spontaneous. FTIR and SEM-EDS studies suggested that U(VI) uptake primarily occurred via ion exchange and surface complexation involving hydroxyl, amino, and carboxyl groups. This study demonstrates S. fusiforme 's potential as an efficient biosorbent for uranium removal. Sargassum fusiforme uranium adsorption kinetics isotherm thermodynamics Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 14 Feb, 2026 Read the published version in Journal of Radioanalytical and Nuclear Chemistry → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7752052","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":535300156,"identity":"64624cba-6116-4c9d-bdb2-c9b182aa5e62","order_by":0,"name":"Jinfeng Fu","email":"","orcid":"","institution":"Hengyang Normal University","correspondingAuthor":false,"prefix":"","firstName":"Jinfeng","middleName":"","lastName":"Fu","suffix":""},{"id":535300157,"identity":"0d0bc004-a8f0-48c5-99a1-953ba04d89a2","order_by":1,"name":"Zhengji 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