Construction of super small-sized BiVO4 @SiO2 composites with high photocatalytic performance for tetracycline degradation

Construction of super small-sized BiVO4 @SiO2 composites with high photocatalytic performance for tetracycline degradation | 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 Short Report Construction of super small-sized BiVO4 @SiO2 composites with high photocatalytic performance for tetracycline degradation Lirui Xing, Zejie Zhang, Yuehong Zhang, Lei Ji This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8071796/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 The ubiquitous presence of tetracycline in water source due to its prevalent usage as antibiotics poses a potential risk to ecosystem and human health, which is in dire need of high removal efficiency. To this end, we constructed a series of super small-sized BiVO4 composites with different loading amount of 5 wt%, 10 wt%, 15 wt%, 20 wt%, and 25 wt% on SiO2 support by hydrothermal-calcination method for efficient photocatalytic degradation of tetracycline. XRD and SEM results revealed that these composites all exhibited good crystalline and well-dispersed morphologies. Particularly, 20 wt% BiVO4@SiO2 of this series of composites showed superior photocatalytic performance with the highest efficiency of 84.1% for tetracycline degradation compared to its counterparts. This can be rationalized by its wide light absorption range and high charge separation efficiency as confirmed by UV-Vis absorption spectra and quenched fluorescence spectra. This work would offer a new way for the design and construction of tetracycline degradation photocatalysts. super small-sized BiVO4 composites different loading amount hydrothermal-calcination 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. 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-8071796","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Short Report","associatedPublications":[],"authors":[{"id":542789628,"identity":"9f6aff3e-50ff-4eac-8347-c23ee5f3d6ca","order_by":0,"name":"Lirui Xing","email":"","orcid":"","institution":"Guangdong University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Lirui","middleName":"","lastName":"Xing","suffix":""},{"id":542789629,"identity":"17a2abaf-842f-4ce3-95ff-89c811174e15","order_by":1,"name":"Zejie Zhang","email":"","orcid":"","institution":"Guangdong University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Zejie","middleName":"","lastName":"Zhang","suffix":""},{"id":542789630,"identity":"bd9e774a-1bd6-42f5-aee4-f43e5a1e7771","order_by":2,"name":"Yuehong Zhang","email":"","orcid":"","institution":"Guangdong University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Yuehong","middleName":"","lastName":"Zhang","suffix":""},{"id":542789631,"identity":"6b023f42-33f3-4d93-acb6-66eb94f93666","order_by":3,"name":"Lei Ji","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAx0lEQVRIiWNgGAWjYBACxmbmBoaECgbGBhCPhzgtQMUJZ4Ba2IjVwgAyn7GNFC3M7YyNDx7Oq5XdcL+B8cHbNgZ5cyIc1myQuO248YZjDMyGc9sYDHc2ENbSJpG47VgiUAubNG8bQ4LBAcJa2n8kzgFrYf9NrJY2hsSGGrAtzMRqaZZIOHbAeOaxxGbJOeckDDcQ0mLYf/jgxx81dbJ9hw8f/PCmzEaeoC2GDWDqMAMDJAFIEFAPBPIQqo6wylEwCkbBKBi5AACsLEOrwNb1BgAAAABJRU5ErkJggg==","orcid":"","institution":"Guangdong University of Technology","correspondingAuthor":true,"prefix":"","firstName":"Lei","middleName":"","lastName":"Ji","suffix":""}],"badges":[],"createdAt":"2025-11-10 01:53:09","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8071796/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8071796/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":96251701,"identity":"4bb56fda-8c7b-486a-9733-9a9f73c2e4f9","added_by":"auto","created_at":"2025-11-19 07:39:56","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":696602,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8071796/v1_covered_7f2fcc9b-b2fb-4d66-a829-183e74164809.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Construction of super small-sized BiVO4 @SiO2 composites with high photocatalytic performance for tetracycline degradation","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"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":"super small-sized, BiVO4 composites, different loading amount, hydrothermal-calcination method","lastPublishedDoi":"10.21203/rs.3.rs-8071796/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8071796/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The ubiquitous presence of tetracycline in water source due to its prevalent usage as antibiotics poses a potential risk to ecosystem and human health, which is in dire need of high removal efficiency. 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