Interaction between amorphous and crystalline SiO2 with ZnO obtained by various methods: implications for rhodamine 6G elimination

Interaction between amorphous and crystalline SiO2 with ZnO obtained by various methods: implications for rhodamine 6G elimination | 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 Interaction between amorphous and crystalline SiO2 with ZnO obtained by various methods: implications for rhodamine 6G elimination Lucy-Caterine Daza-Gómez, Brandon Enrique Vargas Escobar, David Díaz, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5264071/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 study investigates ZnO nanoparticles synthesized via different methods, consistently revealing a hexagonal wurtzite crystalline phase using XRD, Raman, and XPS analyses. The use of CTAB in the precipitation method resulted in smaller particles. ZnO nanoparticles supported on amorphous SiO2 exhibited reduced size due to the distribution of the precursor salt. rhodamine 6G adsorption of was observed to be higher on amorphous supports, attributed to increased deprotonation of silanol groups. Furthermore, it was observed that the nature of the support, whether amorphous or crystalline, significantly influenced photocatalytic activity. While amorphous supports mainly facilitated rhodamine 6G removal through adsorption, while crystalline supports favored degradation. The concentration increases in supported catalyst affected both degradation and adsorption, leading to reduced photodegradation efficiency without significant changes in adsorbed rhodamine 6G. Although rhodamine 6G degradation was lower compared to unsupported ZnO nanoparticles, only 10% of the supported sample consisted of active ZnO. ZnO nanoparticles on crystalline SiO2 showed minimal reduction in photocatalytic activity after five cycles, indicating their practical advantages for applications. SiO2 amorphous SiO2 Crystalline amorphous/crystalline support Full Text Additional Declarations No competing interests reported. Supplementary Files SupportinginformationZnO14Oct24.docx 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-5264071","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":366481247,"identity":"04347e3e-a8f5-4499-b2f6-9c6de6d7b196","order_by":0,"name":"Lucy-Caterine Daza-Gómez","email":"","orcid":"","institution":"Universidad Nacional Autónoma de México","correspondingAuthor":false,"prefix":"","firstName":"Lucy-Caterine","middleName":"","lastName":"Daza-Gómez","suffix":""},{"id":366481248,"identity":"46134cd8-03c6-4012-be8e-b3a6c5fedb31","order_by":1,"name":"Brandon Enrique Vargas Escobar","email":"","orcid":"","institution":"Universidad Nacional Autónoma de México","correspondingAuthor":false,"prefix":"","firstName":"Brandon","middleName":"Enrique Vargas","lastName":"Escobar","suffix":""},{"id":366481249,"identity":"d2632643-1a09-46c5-af63-1ff14b048ec9","order_by":2,"name":"David Díaz","email":"","orcid":"","institution":"Universidad Nacional Autónoma de México","correspondingAuthor":false,"prefix":"","firstName":"David","middleName":"","lastName":"Díaz","suffix":""},{"id":366481250,"identity":"768afda1-3257-4e01-ac49-0f1b2fe2642f","order_by":3,"name":"Nidia Guadalupe García-Peña","email":"","orcid":"","institution":"CINVESTAV-IPN","correspondingAuthor":false,"prefix":"","firstName":"Nidia","middleName":"Guadalupe","lastName":"García-Peña","suffix":""},{"id":366481251,"identity":"a2f3b13e-a61c-4086-ac45-9a35ccd9e220","order_by":4,"name":"Rocío Redón","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAm0lEQVRIiWNgGAWjYJACCQYGG9K1pJGu5TAJys1nHz544+OO84nb2U8nMN1sI0KLzLm0ZMuZZ24n7uzJ3cCcc4YYR/HwmEnztt1O3HAApKWCKC3834BaziVuOP8WqMWAOFvYgFoOJG64QbwtbMaWM9uSjTfceLvhMJF+YX5442ObneyG87kbH+cSE2Io4ACpGkbBKBgFo2AU4AAAqpM1jyn8aFEAAAAASUVORK5CYII=","orcid":"","institution":"Universidad Nacional Autónoma de México","correspondingAuthor":true,"prefix":"","firstName":"Rocío","middleName":"","lastName":"Redón","suffix":""}],"badges":[],"createdAt":"2024-10-15 01:08:28","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5264071/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5264071/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":79289034,"identity":"0e116e22-dbce-47d7-ba35-0f98d7910c78","added_by":"auto","created_at":"2025-03-26 15:23:56","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1157512,"visible":true,"origin":"","legend":"","description":"","filename":"RocioRedonZnOSupports14Oct24.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5264071/v1_covered_5ba74438-7dd8-4155-8350-cf89965eddf5.pdf"},{"id":66874828,"identity":"8db11ed0-cecf-469f-892f-225cd0cb372b","added_by":"auto","created_at":"2024-10-17 10:26:01","extension":"docx","order_by":1,"title":"","display":"","copyAsset":false,"role":"supplement","size":1005631,"visible":true,"origin":"","legend":"","description":"","filename":"SupportinginformationZnO14Oct24.docx","url":"https://assets-eu.researchsquare.com/files/rs-5264071/v1/df550cf58ab22b6d735a34dc.docx"}],"financialInterests":"No competing interests reported.","formattedTitle":"Interaction between amorphous and crystalline SiO2 with ZnO obtained by various methods: implications for rhodamine 6G elimination","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":"SiO2 amorphous, SiO2 Crystalline, amorphous/crystalline support","lastPublishedDoi":"10.21203/rs.3.rs-5264071/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5264071/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis study investigates ZnO nanoparticles synthesized via different methods, consistently revealing a hexagonal wurtzite crystalline phase using XRD, Raman, and XPS analyses. The use of CTAB in the precipitation method resulted in smaller particles. ZnO nanoparticles supported on amorphous SiO2 exhibited reduced size due to the distribution of the precursor salt. rhodamine 6G adsorption of was observed to be higher on amorphous supports, attributed to increased deprotonation of silanol groups. Furthermore, it was observed that the nature of the support, whether amorphous or crystalline, significantly influenced photocatalytic activity. While amorphous supports mainly facilitated rhodamine 6G removal through adsorption, while crystalline supports favored degradation. The concentration increases in supported catalyst affected both degradation and adsorption, leading to reduced photodegradation efficiency without significant changes in adsorbed rhodamine 6G. Although rhodamine 6G degradation was lower compared to unsupported ZnO nanoparticles, only 10% of the supported sample consisted of active ZnO. ZnO nanoparticles on crystalline SiO2 showed minimal reduction in photocatalytic activity after five cycles, indicating their practical advantages for applications.\u003c/p\u003e","manuscriptTitle":"Interaction between amorphous and crystalline SiO2 with ZnO obtained by various methods: implications for rhodamine 6G elimination","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-10-17 10:25:56","doi":"10.21203/rs.3.rs-5264071/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":"da6ef891-bfc7-466b-96f0-a435c89e740f","owner":[],"postedDate":"October 17th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-03-26T15:23:34+00:00","versionOfRecord":[],"versionCreatedAt":"2024-10-17 10:25:56","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5264071","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5264071","identity":"rs-5264071","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}