Ni-Co doped TiO2 catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight

Ni-Co doped TiO2 catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight | 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 Ni-Co doped TiO2 catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight Krushika Mhalshekar, Vivek Pawar, Mrunalini Gaydhane, Sharad Sontakke This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4450819/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 08 Jan, 2025 Read the published version in Environmental Science and Pollution Research → Version 1 posted 6 You are reading this latest preprint version Abstract In the present study combustion synthesized TiO 2 nanoparticles were wet impregnated with Ni, Co and Ni-Co, respectively. The photocatalytic performance of synthesized catalysts was evaluated against Malachite Green dye. The synthesized materials were characterized for crystallite size, surface morphology, elemental composition, and band-gap using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and ultra-violet diffused reflectance spectroscopy, respectively. The optimum parameters for maximum degradation were found by examining the effects of catalyst loading, initial dye concentration and light intensity. A comparative analysis of Ni-doped, Co-doped, and Ni-Co-doped TiO 2 photocatalysts was conducted. The results indicate superior photocatalytic activity of Ni-Co doped TiO 2 among the catalysts investigated under UV light. The degradation kinetics was studied and the underlying degradation mechanism is proposed with the help of LC-MS analysis. Furthermore, a comparative study on the degradation under solar radiation using Co-Ni/TiO 2 was conducted. Malachite Green Photocatalytic degradation doped TiO 2 UV Solar Full Text Cite Share Download PDF Status: Published Journal Publication published 08 Jan, 2025 Read the published version in Environmental Science and Pollution Research → Version 1 posted Editorial decision: Major Revision 16 Aug, 2024 Reviewers agreed at journal 16 Jul, 2024 Reviewers invited by journal 16 Jul, 2024 Editor invited by journal 11 Jun, 2024 Editor assigned by journal 23 May, 2024 First submitted to journal 22 May, 2024 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-4450819","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":327584823,"identity":"a8a6d5aa-9fa3-4318-ac3d-303597eac07e","order_by":0,"name":"Krushika Mhalshekar","email":"","orcid":"","institution":"BITS - Goa Campus: Birla Institute of Technology and Science - Goa Campus","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Krushika","middleName":"","lastName":"Mhalshekar","suffix":""},{"id":327584824,"identity":"2c94536c-8fe2-4d57-b723-6e6dc737efc6","order_by":1,"name":"Vivek Pawar","email":"","orcid":"","institution":"Thapar Institute of Engineering and Technology: Thapar Institute of Engineering and Technology (Deemed to be University)","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Vivek","middleName":"","lastName":"Pawar","suffix":""},{"id":327584825,"identity":"46cc91d1-ceaf-4a0c-86bc-c6c01dd667a0","order_by":2,"name":"Mrunalini Gaydhane","email":"","orcid":"","institution":"BITS - Goa Campus: Birla Institute of Technology and Science - Goa Campus","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Mrunalini","middleName":"","lastName":"Gaydhane","suffix":""},{"id":327584826,"identity":"e2dea9df-0e0e-473d-9486-68e9a3ff391c","order_by":3,"name":"Sharad Sontakke","email":"data:image/png;base64,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","orcid":"https://orcid.org/0000-0003-3856-4808","institution":"Birla Institute of Technology and Science","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Sharad","middleName":"","lastName":"Sontakke","suffix":""}],"badges":[],"createdAt":"2024-05-20 19:26:57","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4450819/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4450819/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s11356-024-35799-x","type":"published","date":"2025-01-08T15:57:07+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":73693825,"identity":"fbe43556-8f3a-483b-9442-8f76d15dc89a","added_by":"auto","created_at":"2025-01-13 16:08:05","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1120288,"visible":true,"origin":"","legend":"","description":"","filename":"ManuscriptEnvSciencePollutionResearch212.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4450819/v1_covered_80831b52-c41b-44fc-8e30-59371114ad81.pdf"}],"financialInterests":"","formattedTitle":"Ni-Co doped TiO2 catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight","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":true,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"environmental-science-and-pollution-research","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"espr","sideBox":"Learn more about [Environmental Science and Pollution Research](https://www.springer.com/journal/11356)","snPcode":"11356","submissionUrl":"https://submission.nature.com/new-submission/11356/3","title":"Environmental Science and Pollution Research","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Malachite Green, Photocatalytic degradation, doped TiO 2 , UV, Solar","lastPublishedDoi":"10.21203/rs.3.rs-4450819/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4450819/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn the present study combustion synthesized TiO\u003csub\u003e2\u003c/sub\u003e nanoparticles were wet impregnated with Ni, Co and Ni-Co, respectively. The photocatalytic performance of synthesized catalysts was evaluated against Malachite Green dye. The synthesized materials were characterized for crystallite size, surface morphology, elemental composition, and band-gap using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and ultra-violet diffused reflectance spectroscopy, respectively. The optimum parameters for maximum degradation were found by examining the effects of catalyst loading, initial dye concentration and light intensity. A comparative analysis of Ni-doped, Co-doped, and Ni-Co-doped TiO\u003csub\u003e2\u003c/sub\u003e photocatalysts was conducted. The results indicate superior photocatalytic activity of Ni-Co doped TiO\u003csub\u003e2\u003c/sub\u003e among the catalysts investigated under UV light. The degradation kinetics was studied and the underlying degradation mechanism is proposed with the help of LC-MS analysis. Furthermore, a comparative study on the degradation under solar radiation using Co-Ni/TiO\u003csub\u003e2\u003c/sub\u003e was conducted.\u003c/p\u003e","manuscriptTitle":"Ni-Co doped TiO2 catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-08-08 06:54:43","doi":"10.21203/rs.3.rs-4450819/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Major Revision","date":"2024-08-16T14:42:35+00:00","index":"","fulltext":""},{"type":"reviewerAgreed","content":"","date":"2024-07-16T08:59:32+00:00","index":0,"fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-07-16T08:04:02+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"Environmental Science and Pollution Research","date":"2024-06-11T15:35:04+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-05-23T04:50:19+00:00","index":"","fulltext":""},{"type":"submitted","content":"Environmental Science and Pollution Research","date":"2024-05-22T08:05:43+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"environmental-science-and-pollution-research","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"espr","sideBox":"Learn more about [Environmental Science and Pollution Research](https://www.springer.com/journal/11356)","snPcode":"11356","submissionUrl":"https://submission.nature.com/new-submission/11356/3","title":"Environmental Science and Pollution Research","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"3fa4de22-ac61-46b6-9246-d6b4b40497e9","owner":[],"postedDate":"August 8th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2025-01-13T15:59:52+00:00","versionOfRecord":{"articleIdentity":"rs-4450819","link":"https://doi.org/10.1007/s11356-024-35799-x","journal":{"identity":"environmental-science-and-pollution-research","isVorOnly":false,"title":"Environmental Science and Pollution Research"},"publishedOn":"2025-01-08 15:57:07","publishedOnDateReadable":"January 8th, 2025"},"versionCreatedAt":"2024-08-08 06:54:43","video":"","vorDoi":"10.1007/s11356-024-35799-x","vorDoiUrl":"https://doi.org/10.1007/s11356-024-35799-x","workflowStages":[]},"version":"v1","identity":"rs-4450819","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4450819","identity":"rs-4450819","version":["v1"]},"buildId":"FbvkV6FR0MCFSLy54lSbu","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}