Design of polyamidoamine dendrimer grafted zeolite to remove malachite green from aqueous media

Design of polyamidoamine dendrimer grafted zeolite to remove malachite green from aqueous media | 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 Design of polyamidoamine dendrimer grafted zeolite to remove malachite green from aqueous media Somayeh Karimi, Mohammad Saraji This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3480972/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 present study describes a new, non-toxic and low-cost composite of zeolite/graphitic carbon nitride modified with highly branched polyamidoamine dendrimer (ZMPA). Graphitic carbon nitride, as an inexpensive and non-toxic compound with different C-N bonds (-NH 2 ), was applied to grow PAMAM on zeolite/g-C 3 N 4 composite. Fourier transform infrared, X-ray diffraction analysis, field emission scanning electron microscopy and energy-dispersive X-ray analysis were used to confirm and characterize of ZMPA The adsorption properties associated with the adsorbent considered to remove malachite green (MG) were surveyed using the batch method. Therefore, the influential parameters on the performance of the adsorbent for the removal of MG, such as pH, contact time, initial concentration and adsorbent dosage, were investigated and optimized. The results showed that the maximum adsorption capability of ZMPA was determined to be 1111 mg g − 1 at pH 10 for 30 minutes. These results could be explained by the high electrostatic interaction, and/or trapped dye molecules in the cavities between the absorbed and the absorbent. The novel zeolite composite may be regarded as a promising adsorbent for MG removal in various wastewater samples (paint, textile industries) with high adsorption capacity and removal rate. Zeolite graphitic carbon nitride polyamidoamine dendrimer malachite green adsorption capacity Full Text Additional Declarations No competing interests reported. Supplementary Files graphicalabstract.tif 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. 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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-3480972","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":242354398,"identity":"e8a45112-52b7-4df6-a63e-793cce6d5346","order_by":0,"name":"Somayeh Karimi","email":"","orcid":"","institution":"isfahan university of technology","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Somayeh","middleName":"","lastName":"Karimi","suffix":""},{"id":242354400,"identity":"dff15c40-ad53-4ea0-b149-41f933f58d0d","order_by":1,"name":"Mohammad Saraji","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAwElEQVRIiWNgGAWjYNACHgk5EHXgASlajMFaEkixJ7EBRBKlRbf/8LMPP2Qs0jdcO/wQaIudnG4DAS1mN9KMZ/bwSORuuJ1mANSSbGx2gKAWBmMGHrCWBJCWA4nbCGo5f/wz4x8eiXSD2+kfiNRyIMeYGWhLgsHtHGJtuZFTzCzDI2E483ZOwYEEA2L8cv74Zsa3PXXyfLfTN3/4UGEnR1ALGDD2MDAogFUaEKMcDH4wMMg3EK16FIyCUTAKRhoAAK5vRbqBd5K9AAAAAElFTkSuQmCC","orcid":"","institution":"isfahan university of technology","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Mohammad","middleName":"","lastName":"Saraji","suffix":""}],"badges":[],"createdAt":"2023-10-23 09:29:24","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3480972/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3480972/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":45968581,"identity":"182ebfa6-3234-4ab8-8258-f3ccbeab12c9","added_by":"auto","created_at":"2023-11-07 01:52:45","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":672750,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3480972/v1_covered_7cfac8b4-8af7-4712-8432-2bd14fcd57e3.pdf"},{"id":45198067,"identity":"82e55293-0775-4231-84a4-385b98dd5727","added_by":"auto","created_at":"2023-10-25 08:34:12","extension":"tif","order_by":1,"title":"","display":"","copyAsset":false,"role":"supplement","size":575114,"visible":true,"origin":"","legend":"","description":"","filename":"graphicalabstract.tif","url":"https://assets-eu.researchsquare.com/files/rs-3480972/v1/65309e23de0a3078789019cf.tif"}],"financialInterests":"No competing interests reported.","formattedTitle":"Design of polyamidoamine dendrimer grafted zeolite to remove malachite green from aqueous media","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":"Zeolite, graphitic carbon nitride, polyamidoamine dendrimer, malachite green, adsorption capacity","lastPublishedDoi":"10.21203/rs.3.rs-3480972/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3480972/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThe present study describes a new, non-toxic and low-cost composite of zeolite/graphitic carbon nitride modified with highly branched polyamidoamine dendrimer (ZMPA). Graphitic carbon nitride, as an inexpensive and non-toxic compound with different C-N bonds (-NH\u003csub\u003e2\u003c/sub\u003e), was applied to grow PAMAM on zeolite/g-C\u003csub\u003e3\u003c/sub\u003eN\u003csub\u003e4\u003c/sub\u003e composite. Fourier transform infrared, X-ray diffraction analysis, field emission scanning electron microscopy and energy-dispersive X-ray analysis were used to confirm and characterize of ZMPA The adsorption properties associated with the adsorbent considered to remove malachite green (MG) were surveyed using the batch method. Therefore, the influential parameters on the performance of the adsorbent for the removal of MG, such as pH, contact time, initial concentration and adsorbent dosage, were investigated and optimized. The results showed that the maximum adsorption capability of ZMPA was determined to be 1111 mg g\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e at pH 10 for 30 minutes. 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