Nanostructured Bi 2 O 3 -ZnO p-n heterojunction photocatalyst derived from ZnBi-NO 3 LDHs for photocatalytic degradation of methylene blue in water samples

Nanostructured Bi 2 O 3 -ZnO p-n heterojunction photocatalyst derived from ZnBi-NO 3 LDHs for photocatalytic degradation of methylene blue in water 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 Nanostructured Bi 2 O 3 -ZnO p-n heterojunction photocatalyst derived from ZnBi-NO 3 LDHs for photocatalytic degradation of methylene blue in water samples Muhammad Ishfaq Chohan, Ali Nawaz Siyal, Abdul Majid Channa, Aydan Elçi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8979301/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 this study, nanostructured Bi 2 O 3 /ZnO p-n heterojunction photocatalyst was developed from ZnBi-LDHs, which was prepared followed by facile co-precipitation using Zn(NO 3 ) 2 .6H 2 O, and Bi(NO 3 ) 3 .5H 2 O salts as precursors. The synthesized materials were characterized well by FT-IR, XRD, EDX-SEM, and TGA techniques. Optical of the material study was carried out. The Tauc plot, followed by optical study, was plotted, and bandgap energy of Bi 2 O 3 /ZnO p-n heterojunction, was calculated, and found to be 1.8 eV eV. The material was tested for photocatalytic degradation of methylene blue (MB) under visible light of a Tungsten lamp (100 W), and worked well at pH 8.0, concentration 10 mg L − 1 MB, photocatalyst dosage 30 mg and, stir period of 60 min at 25°C. Nanostructured Bi 2 O 3 /ZnO p-n heterojunction exhibited the efficiency of ≥ 95.00% with RSD ≤ 4.0%. LDHs p-n heterojunction Photocatalysis Degradation Methylene Blue 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. 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-8979301","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":597977312,"identity":"1d822cce-5cea-411e-a7c6-1bd7f7b8d9b1","order_by":0,"name":"Muhammad Ishfaq Chohan","email":"","orcid":"","institution":"University of Sindh","correspondingAuthor":false,"prefix":"","firstName":"Muhammad","middleName":"Ishfaq","lastName":"Chohan","suffix":""},{"id":597977313,"identity":"1d731fa3-7400-48c6-b07a-cc10f283a8b0","order_by":1,"name":"Ali Nawaz Siyal","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+0lEQVRIie2PvQrCMBCALxTaJeiaIthXiBREKOKrNAh2KSII4iSFQhx9FhGkoxDQpQ/g6uLkoFsFB5NWEISoo2C+4X7gvuQOwGD4RRyUAFCAmiNzCFYIZQuhXrEeio03XyuPbJNy6Aulnlr8UIyEZ7sn/3zIgiE46ZqgbKBViEBzH1PR4o24TVgejQFvJwTlsX4xgXgDqIpxGxgXLCHSRXyqNTw57BZU9Lib++dS8U7vFfU+kYsxFUn1C1aKfrGWWgnTqM/xYCKViMli3GG5/vzmbn50i1vQXThidbnygMliub9kff35FemztFVgyScDZi89+qwYDAbD/3AHrMxQEj70YCwAAAAASUVORK5CYII=","orcid":"","institution":"University of Sindh","correspondingAuthor":true,"prefix":"","firstName":"Ali","middleName":"Nawaz","lastName":"Siyal","suffix":""},{"id":597977315,"identity":"053ff793-9096-49f8-be8f-e8ae5b0c7140","order_by":2,"name":"Abdul Majid Channa","email":"","orcid":"","institution":"University of Sindh","correspondingAuthor":false,"prefix":"","firstName":"Abdul","middleName":"Majid","lastName":"Channa","suffix":""},{"id":597977317,"identity":"1b6e9b59-6e29-46f5-ad3f-5558db4aac96","order_by":3,"name":"Aydan Elçi","email":"","orcid":"","institution":"Ege University","correspondingAuthor":false,"prefix":"","firstName":"Aydan","middleName":"","lastName":"Elçi","suffix":""}],"badges":[],"createdAt":"2026-02-26 15:08:16","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8979301/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8979301/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":104403017,"identity":"1a5c0a57-3649-43b8-832c-80a7f7e3df51","added_by":"auto","created_at":"2026-03-11 12:17:11","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":644700,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8979301/v1_covered_f9eb3723-e9ea-455e-9737-816f85944cfa.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Nanostructured Bi 2 O 3 -ZnO p-n heterojunction photocatalyst derived from ZnBi-NO 3 LDHs for photocatalytic degradation of methylene blue in water samples","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"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":"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":"LDHs, p-n heterojunction, Photocatalysis, Degradation, Methylene Blue","lastPublishedDoi":"10.21203/rs.3.rs-8979301/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8979301/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this study, nanostructured Bi\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/ZnO p-n heterojunction photocatalyst was developed from ZnBi-LDHs, which was prepared followed by facile co-precipitation using Zn(NO\u003csub\u003e3\u003c/sub\u003e)\u003csub\u003e2\u003c/sub\u003e.6H\u003csub\u003e2\u003c/sub\u003eO, and Bi(NO\u003csub\u003e3\u003c/sub\u003e)\u003csub\u003e3\u003c/sub\u003e.5H\u003csub\u003e2\u003c/sub\u003eO salts as precursors. The synthesized materials were characterized well by FT-IR, XRD, EDX-SEM, and TGA techniques. Optical of the material study was carried out. The Tauc plot, followed by optical study, was plotted, and bandgap energy of Bi\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/ZnO p-n heterojunction, was calculated, and found to be 1.8 eV eV. The material was tested for photocatalytic degradation of methylene blue (MB) under visible light of a Tungsten lamp (100 W), and worked well at pH 8.0, concentration 10 mg L\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e MB, photocatalyst dosage 30 mg and, stir period of 60 min at 25\u0026deg;C. Nanostructured Bi\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/ZnO p-n heterojunction exhibited the efficiency of \u0026ge;\u0026thinsp;95.00% with RSD\u0026thinsp;\u0026le;\u0026thinsp;4.0%.\u003c/p\u003e","manuscriptTitle":"Nanostructured Bi 2 O 3 -ZnO p-n heterojunction photocatalyst derived from ZnBi-NO 3 LDHs for photocatalytic degradation of methylene blue in water samples","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-03-05 14:57:53","doi":"10.21203/rs.3.rs-8979301/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":"b8bbcdfe-e6c7-4212-b84a-a161510bd6c5","owner":[],"postedDate":"March 5th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-05-04T04:10:15+00:00","versionOfRecord":[],"versionCreatedAt":"2026-03-05 14:57:53","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8979301","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8979301","identity":"rs-8979301","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}