Alginate Magnetic Graphene Oxide Biocomposite for Removal of Aromatic Amines from Aqueous Samples

Alginate Magnetic Graphene Oxide Biocomposite for Removal of Aromatic Amines from Aqueous Samples | 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 Alginate Magnetic Graphene Oxide Biocomposite for Removal of Aromatic Amines from Aqueous Samples Muhammad Amir Zeb, Jasmin Shah, Rasul Jan Muhammad This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-1970047/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In the present work, alginate magnetic graphene oxide biocomposite was synthesized for the removal and extraction of aromatic amines (aniline, p -chloroaniline and p -nitroaniline) from water samples. The biocomposite were investigated for its physiochemical characteristics such as surface morphology, functional groups, phase determination and elemental composition. The results revealed that the functional groups of graphene oxide and alginate retained in biocomposite with magnetic properties. The biocomposite was applied to water samples for the removal and extraction of aniline, p -chloroaniline and p -nitroaniline through adsorption process. The adsorption process was studied under various experimental conditions like time, pH, concentration, dose and temperature and all the parameters were optimized. The maximum adsorption capacities at room temperature with an optimum pH = 4 for aniline = 18.39 mg/g, for CA = 17.13 mg/g and for NA = 15.24 mg/g. Kinetic and isotherms models showed that the experimental data is best fitted to pseudo second order kinetic model and the Langmuir isotherm model. Thermodynamic study suggested that the adsorption process is exothermic and spontaneous. Ethanol was found to be the best eluent for the extraction of all the three analytes suggested by the extraction study. The maximum percent recoveries from spiked water samples were calculated for aniline = 98.82%, PCA = 96.65% and PNA = 93.55% which showed that alginate magnetic graphene oxide biocomposite could be useful and ecofriendly adsorbent for the removal of organic pollutants in water treatment processes. Graphene oxide alginate aromatic amines removal water treatment Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementarydata.doc Cite Share Download PDF Status: Posted 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. 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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-1970047","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":130609395,"identity":"7e1132c9-44ee-4eab-8c36-3f6a3c97646a","order_by":0,"name":"Muhammad Amir Zeb","email":"","orcid":"","institution":"University of Peshawar","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Muhammad","middleName":"Amir","lastName":"Zeb","suffix":""},{"id":130609396,"identity":"4792da24-473c-4f21-b2b2-1d9d43aa57f3","order_by":1,"name":"Jasmin Shah","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA/ElEQVRIiWNgGAWjYBACxgYgkQBCEswHDiQY2DAwSBCvhS3xwYeCNMJaYACohcfYcMaHw4S1MLcff7rh4Y66PP7ZDWbSPAbnE/tnNx98wFBjE43TYT05ZjcSzxwulrhzIA2o5XbijDvHkg0YjqXlNuD0Sw7bjcS2A4kNNxKOgbU03Mgxk2BsOIxbS//zZ0AtdYnzgSRQyzkgg5CWGQlAh7UxJ264kcxsOMPgAJBBUMsbkJbDiRtvpDE++GCQbAxkJBsk4PGLYX/6s5s/gQ6bdyP/w4GEP3ay824kH3zwocYGtxZ0CUewQAIO5SAgjy5gj0fxKBgFo2AUjFAAAPe+a11gaVf7AAAAAElFTkSuQmCC","orcid":"","institution":"University of Peshawar","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Jasmin","middleName":"","lastName":"Shah","suffix":""},{"id":130609397,"identity":"026efe6e-1d32-4b11-82e4-a943965ac393","order_by":2,"name":"Rasul Jan Muhammad","email":"","orcid":"","institution":"University of Peshawar","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Rasul","middleName":"Jan","lastName":"Muhammad","suffix":""}],"badges":[],"createdAt":"2022-08-17 08:29:30","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-1970047/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-1970047/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":25619162,"identity":"02a996eb-b539-42e3-80c5-41b692087af8","added_by":"auto","created_at":"2022-08-24 16:48:44","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":577213,"visible":true,"origin":"","legend":"","description":"","filename":"Shahpaperaromaticamineextraction.pdf","url":"https://assets-eu.researchsquare.com/files/rs-1970047/v1_covered.pdf"},{"id":25619160,"identity":"dcfedc94-6b32-446b-a6d5-a290ea64a6bf","added_by":"auto","created_at":"2022-08-24 16:48:33","extension":"doc","order_by":1,"title":"","display":"","copyAsset":false,"role":"supplement","size":340480,"visible":true,"origin":"","legend":"","description":"","filename":"Supplementarydata.doc","url":"https://assets-eu.researchsquare.com/files/rs-1970047/v1/cf1a9d87bd38c34d9952ff6d.doc"}],"financialInterests":"No competing interests reported.","formattedTitle":"Alginate Magnetic Graphene Oxide Biocomposite for Removal of Aromatic Amines from Aqueous Samples","fulltext":[{"header":"Full Text","content":"This preprint is available for \u003ca href='/article/rs-1970047/latest.pdf' target='_blank'\u003edownload as a PDF\u003c/a\u003e."}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Graphene oxide, alginate, aromatic amines, removal, water treatment","lastPublishedDoi":"10.21203/rs.3.rs-1970047/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-1970047/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn the present work, alginate magnetic graphene oxide biocomposite was synthesized for the removal and extraction of aromatic amines (aniline, \u003cem\u003ep\u003c/em\u003e-chloroaniline and \u003cem\u003ep\u003c/em\u003e-nitroaniline) from water samples. The biocomposite were investigated for its physiochemical characteristics such as surface morphology, functional groups, phase determination and elemental composition. The results revealed that the functional groups of graphene oxide and alginate retained in biocomposite with magnetic properties. The biocomposite was applied to water samples for the removal and extraction of aniline, \u003cem\u003ep\u003c/em\u003e-chloroaniline and \u003cem\u003ep\u003c/em\u003e-nitroaniline through adsorption process. The adsorption process was studied under various experimental conditions like time, pH, concentration, dose and temperature and all the parameters were optimized. The maximum adsorption capacities at room temperature with an optimum pH = 4 for aniline = 18.39 mg/g, for CA = 17.13 mg/g and for NA = 15.24 mg/g. Kinetic and isotherms models showed that the experimental data is best fitted to pseudo second order kinetic model and the Langmuir isotherm model. Thermodynamic study suggested that the adsorption process is exothermic and spontaneous. Ethanol was found to be the best eluent for the extraction of all the three analytes suggested by the extraction study. The maximum percent recoveries from spiked water samples were calculated for aniline = 98.82%, PCA = 96.65% and PNA = 93.55% which showed that alginate magnetic graphene oxide biocomposite could be useful and ecofriendly adsorbent for the removal of organic pollutants in water treatment processes.\u003c/p\u003e","manuscriptTitle":"Alginate Magnetic Graphene Oxide Biocomposite for Removal of Aromatic Amines from Aqueous Samples","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2022-08-24 16:48:31","doi":"10.21203/rs.3.rs-1970047/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"d1db5fb9-414f-4df4-af92-5de24cc439d4","owner":[],"postedDate":"August 24th, 2022","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2022-08-27T12:59:16+00:00","versionOfRecord":[],"versionCreatedAt":"2022-08-24 16:48:31","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-1970047","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-1970047","identity":"rs-1970047","version":["v1"]},"buildId":"cBFmMYwuxLRRLfASyISRj","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}