Preparation and adsorption properties of microsphere geopolymers based on calcium carbide slag-fly ash

Preparation and adsorption properties of microsphere geopolymers based on calcium carbide slag-fly ash | 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 Article Preparation and adsorption properties of microsphere geopolymers based on calcium carbide slag-fly ash Yinnian Liao, Xiaoqing Ma, Jinchi Zou, Mengqi Zhao, Dejun Chen, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5348653/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 27 Feb, 2025 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract In this work, using fly ash and calcium carbide slag as mixed precursors, hydrogen peroxide and sodium dodecyl sulfate as mixed foaming agents, porous microsphere geopolymer was prepared by suspension curing technology to remove Cu (II) from aqueous solution. Because the Ca (OH) 2 in calcium carbide slag effectively improves the pozzolana activity of fly ash, more C-S-H gel is produced in the geopolymerization process, and the foaming process makes the material have larger specific surface area and better adsorption properties. The results show that the specific surface area of the material is 63.46 m 2 ·g - 1 , the product regeneration rate is 83.20%, the optimal adsorption conditions are pH = 5, and the adsorption capacity was 118.48 mg·g - 1 . At the same time, it is found that the pseudo-first-order kinetic model and the Langmuir isotherm model can be applied to adsorption kinetics and isothermal adsorption respectively. Adsorption mechanisms may include physisorption and chemisorption. The adsorption capacity of this product for Cu(II) is better than that of other similar products, which has great potential in the field of heavy metal adsorption and provides a new idea for the resourceful use of industrial by-products. Geopolymer Fly ash Calcium carbide slag Composite materials Adsorption Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 27 Feb, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 27 Nov, 2024 Reviews received at journal 27 Nov, 2024 Reviews received at journal 16 Nov, 2024 Reviewers agreed at journal 16 Nov, 2024 Reviewers agreed at journal 15 Nov, 2024 Reviewers invited by journal 15 Nov, 2024 Editor assigned by journal 14 Nov, 2024 Editor invited by journal 14 Nov, 2024 Submission checks completed at journal 12 Nov, 2024 First submitted to journal 28 Oct, 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-5348653","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":383283022,"identity":"bdb9817f-3b1e-443c-bd95-a2350616bce2","order_by":0,"name":"Yinnian Liao","email":"","orcid":"","institution":"Zhuhai College of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yinnian","middleName":"","lastName":"Liao","suffix":""},{"id":383283023,"identity":"2ebca867-6939-474c-97fe-6931448061c8","order_by":1,"name":"Xiaoqing Ma","email":"","orcid":"","institution":"Ministry of Education \u0026 Xinjiang Uygur Autonomous Region, Xinjiang University","correspondingAuthor":false,"prefix":"","firstName":"Xiaoqing","middleName":"","lastName":"Ma","suffix":""},{"id":383283024,"identity":"5541396e-697c-4f14-964e-f25f760dfe2e","order_by":2,"name":"Jinchi Zou","email":"","orcid":"","institution":"Ministry of Education \u0026 Xinjiang Uygur Autonomous Region, Xinjiang University","correspondingAuthor":false,"prefix":"","firstName":"Jinchi","middleName":"","lastName":"Zou","suffix":""},{"id":383283025,"identity":"24f5134f-0350-4b0b-9aaa-386033c43d65","order_by":3,"name":"Mengqi Zhao","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAArklEQVRIiWNgGAWjYFCCA0BcISEnT6KWMxbGhg0kWcTYVpEI1koUMDh4/OmGt/MkEhgbmB8+ukGMFsmGA2k3526TyGNnYDM2ziFGCz/DgWO3ebdJFDM28LBJE6WFjeFg223eORKJDQeI1cLPcJjtNm8DKVokG46x3ZxzTMLYsJlYvxjcOP7sxpuaOjl59uaHj4nSwiBxgIGBB8RgJko5CPA3QLWMglEwCkbBKMAFAD+oMgVrNLxkAAAAAElFTkSuQmCC","orcid":"","institution":"Ministry of Education \u0026 Xinjiang Uygur Autonomous Region, Xinjiang University","correspondingAuthor":true,"prefix":"","firstName":"Mengqi","middleName":"","lastName":"Zhao","suffix":""},{"id":383283026,"identity":"20552d24-2d3d-4ff6-9170-a4c8144f1f30","order_by":4,"name":"Dejun Chen","email":"","orcid":"","institution":"Ministry of Education \u0026 Xinjiang Uygur Autonomous Region, Xinjiang University","correspondingAuthor":false,"prefix":"","firstName":"Dejun","middleName":"","lastName":"Chen","suffix":""},{"id":383283027,"identity":"c81845e7-9368-43a9-bd95-3f930f320bf7","order_by":5,"name":"Dayu Xu","email":"","orcid":"","institution":"Zhuhai College of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Dayu","middleName":"","lastName":"Xu","suffix":""}],"badges":[],"createdAt":"2024-10-28 16:23:18","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5348653/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5348653/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1038/s41598-025-85749-x","type":"published","date":"2025-02-27T15:57:33+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":77622714,"identity":"80884cee-0703-4ffc-99ca-b2d2e4420f9b","added_by":"auto","created_at":"2025-03-03 16:09:42","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":666565,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5348653/v1_covered_39b65978-c4d3-47fc-9a5f-52726d577b5f.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Preparation and adsorption properties of microsphere geopolymers based on calcium carbide slag-fly ash","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":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"Geopolymer, Fly ash, Calcium carbide slag, Composite materials, Adsorption","lastPublishedDoi":"10.21203/rs.3.rs-5348653/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5348653/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this work, using fly ash and calcium carbide slag as mixed precursors, hydrogen peroxide and sodium dodecyl sulfate as mixed foaming agents, porous microsphere geopolymer was prepared by suspension curing technology to remove Cu (II) from aqueous solution. Because the Ca (OH) \u003csub\u003e2\u003c/sub\u003e in calcium carbide slag effectively improves the pozzolana activity of fly ash, more C-S-H gel is produced in the geopolymerization process, and the foaming process makes the material have larger specific surface area and better adsorption properties. The results show that the specific surface area of the material is 63.46 m\u003csup\u003e\u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2\u003c/span\u003e\u003c/sup\u003e\u0026middot;g\u003csup\u003e-\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e1\u003c/span\u003e\u003c/sup\u003e, the product regeneration rate is 83.20%, the optimal adsorption conditions are pH\u0026thinsp;=\u0026thinsp;5, and the adsorption capacity was 118.48 mg\u0026middot;g\u003csup\u003e-\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e1\u003c/span\u003e\u003c/sup\u003e. At the same time, it is found that the pseudo-first-order kinetic model and the Langmuir isotherm model can be applied to adsorption kinetics and isothermal adsorption respectively. Adsorption mechanisms may include physisorption and chemisorption. The adsorption capacity of this product for Cu(II) is better than that of other similar products, which has great potential in the field of heavy metal adsorption and provides a new idea for the resourceful use of industrial by-products.\u003c/p\u003e","manuscriptTitle":"Preparation and adsorption properties of microsphere geopolymers based on calcium carbide slag-fly ash","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-11-29 17:02:49","doi":"10.21203/rs.3.rs-5348653/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-11-27T09:18:08+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-27T08:38:38+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-16T11:41:43+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"126720361321357510179878973203810863535","date":"2024-11-16T09:41:04+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"135265450170040730754870191394922500901","date":"2024-11-15T09:02:06+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-11-15T06:11:57+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-11-14T16:53:56+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2024-11-14T15:03:10+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-11-12T12:22:41+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2024-10-28T16:15:12+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"02117567-fa73-4b7c-9f71-26fc28dbc460","owner":[],"postedDate":"November 29th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2025-03-03T16:04:54+00:00","versionOfRecord":{"articleIdentity":"rs-5348653","link":"https://doi.org/10.1038/s41598-025-85749-x","journal":{"identity":"scientific-reports","isVorOnly":false,"title":"Scientific Reports"},"publishedOn":"2025-02-27 15:57:33","publishedOnDateReadable":"February 27th, 2025"},"versionCreatedAt":"2024-11-29 17:02:49","video":"","vorDoi":"10.1038/s41598-025-85749-x","vorDoiUrl":"https://doi.org/10.1038/s41598-025-85749-x","workflowStages":[]},"version":"v1","identity":"rs-5348653","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5348653","identity":"rs-5348653","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}