CNF/modified ZSM-5: Composite Sensors for Ammonia and Ethanol detection

CNF/modified ZSM-5: Composite Sensors for Ammonia and Ethanol detection | 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 CNF/modified ZSM-5: Composite Sensors for Ammonia and Ethanol detection Kishori Naik, Madhuri Lakhane, Megha Mahabole This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6145314/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 This work deals with development of fiber reinforced nanocomposites and their gas sensing performances for ammonia and ethanol target gases. Effect of cellulose nanofibers (CNF) on gas sensing ability of newly developed composite sensors, wherein modified ZSM-5 forms work as matrices and CNF as a dispersing material, has been demonstrated. Modified forms of nano NaZSM- 5, synthesized in laboratory, are obtained via dealumination and ion exchange processes. CNF/Modified nano-ZSM-5 composite film sensors are developed by solution casting method and are characterized by XRD, FTIR, SEM, TGA and BET techniques. These films are tested for detection of ammonia and ethanol gases. Various gas sensing parameters like gas response, response /recovery time and saturation limit are determined. It is observed that the composite sensors have ability to detect ammonia and ethanol gases in low temperature range(30–35°C). Gas adsorption data indicates that sensing selectivity for ammonia over ethanol can be significantly improved by such modification. CNF/Cu-ZSM-5 (C80) CNF/Fe-ZSM-5(Fe80) composite sensors show higher affinity towards ammonia and ethanol gases respectively. It is remarkable to note that blending of CNF with various modified ZSM-5 forms results in low operating temperatures (30–35°C) compared to that for ZSM-5 (135°C) for ethanol. The developed sensors can detect both gases with a concentration as low as 1ppm. Incorporation of CNF results in reduction in response and recovery times than pure ZSM-5 sensor. These sensors have potential to be used selectively as ammonia sensors. Cellulose nanofiber ZSM-5 Nanocomposites Gas sensor Solution casting method Full Text Additional Declarations No competing interests reported. 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. 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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-6145314","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":423818031,"identity":"b58d94ee-5687-4aea-8d6e-ec49be76dcaa","order_by":0,"name":"Kishori Naik","email":"","orcid":"","institution":"Swami Ramanand Teerth Marathwada University","correspondingAuthor":false,"prefix":"","firstName":"Kishori","middleName":"","lastName":"Naik","suffix":""},{"id":423818032,"identity":"4dcb65aa-5d9f-4f2e-bf39-e6631a15b607","order_by":1,"name":"Madhuri Lakhane","email":"","orcid":"","institution":"Shri Vile Parle Kelavani Mandal","correspondingAuthor":false,"prefix":"","firstName":"Madhuri","middleName":"","lastName":"Lakhane","suffix":""},{"id":423818033,"identity":"e56a5902-9a0e-4791-b0d9-d84f799ef111","order_by":2,"name":"Megha Mahabole","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA40lEQVRIiWNgGAWjYNCDD0DMxk6U0gQIxTgDpIWZFC3MPGCSgGLd2d3Jnyt/bEvczn/28GebX9vk+ZgZGD98zMGtxezO2W2SZxJuJ+6ckZcmndt327CNmYFZcuY2PFpu5G5jbABq2XCDx4w5t+c2I1ALGzMvfi2bP4K1nD9j/Nmy57Y9MVo2SIK1HMgxkGb4cTuRsBaQXxrSbhtvuJGXJtnbcDu5jZmxGb9fbvcCHWZzW3bD+bOHP/z4c9t2fnvzwQ8f8WhhkICzgJHC2AZiMDbgUY+uheEPfsWjYBSMglEwMgEA691ZAa0k0AEAAAAASUVORK5CYII=","orcid":"","institution":"Swami Ramanand Teerth Marathwada University","correspondingAuthor":true,"prefix":"","firstName":"Megha","middleName":"","lastName":"Mahabole","suffix":""}],"badges":[],"createdAt":"2025-03-03 10:38:15","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6145314/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6145314/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":82297201,"identity":"6a4da555-d67f-4780-9b27-9bb75d1e94b5","added_by":"auto","created_at":"2025-05-08 20:01:35","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1276399,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6145314/v1_covered_6e40b298-e7df-43e9-a0f0-0da9bd0c07eb.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"CNF/modified ZSM-5: Composite Sensors for Ammonia and Ethanol detection","fulltext":[],"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":true,"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":"Cellulose nanofiber, ZSM-5, Nanocomposites, Gas sensor, Solution casting method","lastPublishedDoi":"10.21203/rs.3.rs-6145314/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6145314/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis work deals with development of fiber reinforced nanocomposites and their gas sensing performances for ammonia and ethanol target gases. Effect of cellulose nanofibers (CNF) on gas sensing ability of newly developed composite sensors, wherein modified ZSM-5 forms work as matrices and CNF as a dispersing material, has been demonstrated. Modified forms of nano NaZSM- 5, synthesized in laboratory, are obtained via dealumination and ion exchange processes. CNF/Modified nano-ZSM-5 composite film sensors are developed by solution casting method and are characterized by XRD, FTIR, SEM, TGA and BET techniques. These films are tested for detection of ammonia and ethanol gases. Various gas sensing parameters like gas response, response /recovery time and saturation limit are determined. It is observed that the composite sensors have ability to detect ammonia and ethanol gases in low temperature range(30\u0026ndash;35\u0026deg;C). Gas adsorption data indicates that sensing selectivity for ammonia over ethanol can be significantly improved by such modification. CNF/Cu-ZSM-5 (C80) CNF/Fe-ZSM-5(Fe80) composite sensors show higher affinity towards ammonia and ethanol gases respectively. It is remarkable to note that blending of CNF with various modified ZSM-5 forms results in low operating temperatures (30\u0026ndash;35\u0026deg;C) compared to that for ZSM-5 (135\u0026deg;C) for ethanol. The developed sensors can detect both gases with a concentration as low as 1ppm. Incorporation of CNF results in reduction in response and recovery times than pure ZSM-5 sensor. 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