Preparation of SrTiO 3 /PPy composites and photocatalytic degradation of RhB

Preparation of SrTiO 3 /PPy composites and photocatalytic degradation of RhB | 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 Preparation of SrTiO 3 /PPy composites and photocatalytic degradation of RhB Lili Li, Jiaxin Li, Wen Xi, Jing Shu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6499071/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 12 You are reading this latest preprint version Abstract Type-II SrTiO3 /PPy composites were prepared via in-situ oxidative polymer- ization to improve the photocatalytic degradation efficiency of Rhodamine B (RhB).The influence of surfactant types and pyrrole concentrations on structural properties and photocatalytic performance was systematically examined.A core- shell structure was confirmed by XRD, FT-IR, TEM, and XPS analyses, in which SrTiO3 was uniformly encapsulated by PPy without changes to its crystalline phase. The composite synthesized with 5.2% pyrrole and anionic surfactant (SDS) exhibited optimal activity, achieving 97.60% RhB degradation under UV irradiation within 90 min. Bandgap analysis and radical trapping experiments revealed a Type-II heterojunction mechanism, which facilitated efficient charge separation and transfer. This work provides a strategic approach for designing high-performance SrTiO3-based photocatalysts. SrTiO3 /PPy Photocatalytic degradation Type-II heterojunction In-situ oxidative polymerization Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 18 May, 2025 Reviews received at journal 14 May, 2025 Reviews received at journal 13 May, 2025 Reviews received at journal 05 May, 2025 Reviewers agreed at journal 05 May, 2025 Reviewers agreed at journal 30 Apr, 2025 Reviewers agreed at journal 30 Apr, 2025 Reviewers agreed at journal 29 Apr, 2025 Reviewers invited by journal 29 Apr, 2025 Editor assigned by journal 26 Apr, 2025 Submission checks completed at journal 26 Apr, 2025 First submitted to journal 21 Apr, 2025 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-6499071","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":450037048,"identity":"d175a236-3932-4449-a8f8-459d6c448853","order_by":0,"name":"Lili Li","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAsklEQVRIiWNgGAWjYBACPmbmxgOMfyTk+JmZDz8gSgsbM2PDAcYGC2PJdrY0A+K0MIC1VCQanOdRkCBOCztIyw6JBOPDPAwGDDU20UQ67IxEntlh3gMPGI6l5TYQpYWBTaLY7DBfggFjw2HitSRubuYxkCBeC2ObROIGZpK0MJyRMJY4DAzkBGL8ws9/+OADhoo6Of7+w4cffKixIawFBJj/wFgJxCgfBaNgFIyCUUAYAABbiTk/+G2rSgAAAABJRU5ErkJggg==","orcid":"","institution":"Northeast Petroleum University","correspondingAuthor":true,"prefix":"","firstName":"Lili","middleName":"","lastName":"Li","suffix":""},{"id":450037049,"identity":"4a246c46-4dd5-4bee-8028-4e7a73a26130","order_by":1,"name":"Jiaxin Li","email":"","orcid":"","institution":"Northeast Petroleum University","correspondingAuthor":false,"prefix":"","firstName":"Jiaxin","middleName":"","lastName":"Li","suffix":""},{"id":450037050,"identity":"9d695fd3-6b50-47f8-9824-81ac9bd189df","order_by":2,"name":"Wen Xi","email":"","orcid":"","institution":"Northeast Petroleum University","correspondingAuthor":false,"prefix":"","firstName":"Wen","middleName":"","lastName":"Xi","suffix":""},{"id":450037051,"identity":"9221267e-8752-4a79-a544-d38048fd6ce8","order_by":3,"name":"Jing Shu","email":"","orcid":"","institution":"Northeast Petroleum University","correspondingAuthor":false,"prefix":"","firstName":"Jing","middleName":"","lastName":"Shu","suffix":""}],"badges":[],"createdAt":"2025-04-22 00:38:11","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6499071/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6499071/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":81979713,"identity":"f73c4669-f1de-4a97-af6a-0d76dc3141f8","added_by":"auto","created_at":"2025-05-05 14:23:42","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":476722,"visible":true,"origin":"","legend":"","description":"","filename":"STPPy11.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6499071/v1_covered_52819e8a-dc47-4932-a5f4-106f889c5160.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Preparation of SrTiO 3 /PPy composites and photocatalytic degradation of RhB","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":"catalysis-letters","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Catalysis Letters](https://link.springer.com/journal/10562)","snPcode":"10562","submissionUrl":"https://submission.springernature.com/new-submission/10562/3","title":"Catalysis Letters","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"SrTiO3 /PPy, Photocatalytic degradation, Type-II heterojunction, In-situ oxidative polymerization","lastPublishedDoi":"10.21203/rs.3.rs-6499071/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6499071/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eType-II SrTiO3 /PPy composites were prepared via in-situ oxidative polymer- ization to improve the photocatalytic degradation efficiency of Rhodamine B (RhB).The influence of surfactant types and pyrrole concentrations on structural properties and photocatalytic performance was systematically examined.A core- shell structure was confirmed by XRD, FT-IR, TEM, and XPS analyses, in which SrTiO3 was uniformly encapsulated by PPy without changes to its crystalline phase. 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