Polyaniline/Reduced Graphene Oxide Doping Induced Abundant Active Sites in Enset Fiber as an Efficient Adsorbent Material for Wastewater Treatment

Polyaniline/Reduced Graphene Oxide Doping Induced Abundant Active Sites in Enset Fiber as an Efficient Adsorbent Material for Wastewater Treatment | 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 Polyaniline/Reduced Graphene Oxide Doping Induced Abundant Active Sites in Enset Fiber as an Efficient Adsorbent Material for Wastewater Treatment Israel Leka Lera This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4188809/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 08 May, 2024 Read the published version in Adsorption → Version 1 posted 8 You are reading this latest preprint version Abstract Analysis of physicochemical properties and treatment of water is vital to the environment and living standard of society. In this study, polyaniline (PANI)/enset fiber (EF), reduced graphene oxide/EF, and PANI/rGO/EF composites as adsorbent material s were prepared via facile in situ chemical oxidative polymerization techniques. The as-synthesized materials were characterized using XRD, FTIR, UV-VIS, TGA, and FTIR spectroscopy. The physical characterization reveals the deposition of PANI and rGO on the surface of the EF confirmed by cloudy and wrinkled fibrous morphology from SEM image. After physical characterization, the adsorption performance of the proposed materials was tested using the batch method. A result shows maximum adsorption capacity (q max ) of Cu 2+ and Pb 2+ ions by PANI/rGO coated EF (EF) was 10.11 mg/g and 13.4 mg/g, respectively which is higher than pristine EF, PANI/EF, and rGO/EF. When all parameters were optimized, adsorptive removal efficiency of PANI/rGO/EF composite material towards Pb 2+ and Cu 2+ ions was 99% and 97.77%, respectively. The Freundlich isotherm data for Cu 2+ and Pb 2+ have a good fit with the experimental data (R 2 = 0.99 and 0.98), and Langmuir isotherm data for Cu 2+ and Pb 2+ (RL = 0.18 & 0.19), respectively. The pseudo-second-order kinetic isothermal was more fit with physiosorption at R 2 = 0.99 for Cu 2+ and R 2 = 1 for Pb 2+ . Therefore, a synthesized novel material PANI/rGO/EF shows a remarkable adsorption performance compared with EF, PANI/EF, and rGO/EF due to doping-induced abundant active sites of composite material makes it a promising candidate for wastewater treatment techniques. Adsorption Enset fiber composite polyaniline copper lead Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 08 May, 2024 Read the published version in Adsorption → Version 1 posted Editorial decision: Revision requested 22 Apr, 2024 Reviews received at journal 21 Apr, 2024 Reviewers agreed at journal 05 Apr, 2024 Reviewers agreed at journal 05 Apr, 2024 Reviewers invited by journal 05 Apr, 2024 Editor assigned by journal 01 Apr, 2024 Submission checks completed at journal 30 Mar, 2024 First submitted to journal 29 Mar, 2024 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. 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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-4188809","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":286230492,"identity":"00002c04-ded6-450e-8007-24f3892f35d6","order_by":0,"name":"Israel Leka Lera","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA9UlEQVRIie3PMYvCMBTA8SeBuDzNmtJDv8KDg4Io+FUOhHbpILgcuOuSw7Vfw2+gFDpVXAsu3uJ0Q12Ogh1MjjtvanR0yH8IL8OPvAC4XE8Y/zmn8AIIrSNszO3tEUIaIDD6J3fYH+HyIdIVu8+y1ERgeppjnoJoxwTnyrKYjF69RBPvYxEcsEjBU1/USiyvcMnBR01oD8EhLlOgIiaGNiIydqk1Ge/b3zNDxobUNgIh9833qaMCFuvFSGpi+z6XIR8okijzfObXeaSH03SrwmbSX2WsqN5HPaGi9TnJhj2xnKyP1aiZ/CZvE5pjcxe4XC6Xy9oVJMBG58af6aoAAAAASUVORK5CYII=","orcid":"","institution":"Wolkite University","correspondingAuthor":true,"prefix":"","firstName":"Israel","middleName":"Leka","lastName":"Lera","suffix":""}],"badges":[],"createdAt":"2024-03-29 15:46:38","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4188809/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4188809/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s10450-024-00482-7","type":"published","date":"2024-05-09T00:37:21+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":56209186,"identity":"062e1be9-eb5f-486e-9bc2-fcfd2720c22b","added_by":"auto","created_at":"2024-05-10 00:37:32","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":928001,"visible":true,"origin":"","legend":"","description":"","filename":"Ensetfiberarticle.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4188809/v1_covered_ed2aacac-809e-4442-a965-8f91827d5dda.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Polyaniline/Reduced Graphene Oxide Doping Induced Abundant Active Sites in Enset Fiber as an Efficient Adsorbent Material for Wastewater Treatment","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"adsorption","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"adso","sideBox":"Learn more about [Adsorption](http://link.springer.com/journal/10450)","snPcode":"10450","submissionUrl":"https://submission.nature.com/new-submission/10450/3","title":"Adsorption","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Adsorption, Enset fiber, composite, polyaniline, copper, lead","lastPublishedDoi":"10.21203/rs.3.rs-4188809/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4188809/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAnalysis of physicochemical properties and treatment of water is vital to the environment and living standard of society. In this study, polyaniline (PANI)/enset fiber (EF), reduced graphene oxide/EF, and PANI/rGO/EF composites as adsorbent material s were prepared via facile in situ chemical oxidative polymerization techniques. The as-synthesized materials were characterized using XRD, FTIR, UV-VIS, TGA, and FTIR spectroscopy. The physical characterization reveals the deposition of PANI and rGO on the surface of the EF confirmed by cloudy and wrinkled fibrous morphology from SEM image. After physical characterization, the adsorption performance of the proposed materials was tested using the batch method. A result shows maximum adsorption capacity (q\u003csub\u003emax\u003c/sub\u003e) of Cu\u003csup\u003e2+\u003c/sup\u003e and Pb\u003csup\u003e2+\u003c/sup\u003e ions by PANI/rGO coated EF (EF) was 10.11 mg/g and 13.4 mg/g, respectively which is higher than pristine EF, PANI/EF, and rGO/EF. When all parameters were optimized, adsorptive removal efficiency of PANI/rGO/EF composite material towards Pb\u003csup\u003e2+\u003c/sup\u003e and Cu\u003csup\u003e2+\u003c/sup\u003e ions was 99% and 97.77%, respectively. The Freundlich isotherm data for Cu\u003csup\u003e2+\u003c/sup\u003e and Pb\u003csup\u003e2+\u003c/sup\u003e have a good fit with the experimental data (R\u003csup\u003e2\u003c/sup\u003e\u0026thinsp;=\u0026thinsp;0.99 and 0.98), and Langmuir isotherm data for Cu\u003csup\u003e2+\u003c/sup\u003e and Pb\u003csup\u003e2+\u003c/sup\u003e (RL\u0026thinsp;=\u0026thinsp;0.18 \u0026amp; 0.19), respectively. The pseudo-second-order kinetic isothermal was more fit with physiosorption at R\u003csup\u003e2\u003c/sup\u003e\u0026thinsp;=\u0026thinsp;0.99 for Cu\u003csup\u003e2+\u003c/sup\u003e and R\u003csup\u003e2\u003c/sup\u003e\u0026thinsp;=\u0026thinsp;1 for Pb\u003csup\u003e2+\u003c/sup\u003e. Therefore, a synthesized novel material PANI/rGO/EF shows a remarkable adsorption performance compared with EF, PANI/EF, and rGO/EF due to doping-induced abundant active sites of composite material makes it a promising candidate for wastewater treatment techniques.\u003c/p\u003e","manuscriptTitle":"Polyaniline/Reduced Graphene Oxide Doping Induced Abundant Active Sites in Enset Fiber as an Efficient Adsorbent Material for Wastewater Treatment","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-04-03 08:44:01","doi":"10.21203/rs.3.rs-4188809/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-04-22T10:50:59+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-04-21T04:12:45+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"2f8fec6d-7350-4c75-ae6b-c4f22a4dff3f","date":"2024-04-05T15:45:12+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"106a0713-b204-4217-a7a2-e7e0dd798a49","date":"2024-04-05T14:52:54+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-04-05T14:49:32+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-04-01T15:03:51+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-03-30T04:51:54+00:00","index":"","fulltext":""},{"type":"submitted","content":"Adsorption","date":"2024-03-29T15:45:21+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"adsorption","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"adso","sideBox":"Learn more about [Adsorption](http://link.springer.com/journal/10450)","snPcode":"10450","submissionUrl":"https://submission.nature.com/new-submission/10450/3","title":"Adsorption","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"020978d1-ba73-4e6d-813c-b873a883006f","owner":[],"postedDate":"April 3rd, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2024-05-10T00:37:21+00:00","versionOfRecord":{"articleIdentity":"rs-4188809","link":"https://doi.org/10.1007/s10450-024-00482-7","journal":{"identity":"adsorption","isVorOnly":false,"title":"Adsorption"},"publishedOn":"2024-05-09 00:37:21","publishedOnDateReadable":"May 9th, 2024"},"versionCreatedAt":"2024-04-03 08:44:01","video":"","vorDoi":"10.1007/s10450-024-00482-7","vorDoiUrl":"https://doi.org/10.1007/s10450-024-00482-7","workflowStages":[]},"version":"v1","identity":"rs-4188809","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4188809","identity":"rs-4188809","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}