PDA@BN@SiO 2 @OTS coated superhydrophobic paper with good mechanical durability and self-cleaning function for oil-water separation

PDA@BN@SiO 2 @OTS coated superhydrophobic paper with good mechanical durability and self-cleaning function for oil-water separation | 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 PDA@BN@SiO 2 @OTS coated superhydrophobic paper with good mechanical durability and self-cleaning function for oil-water separation Hexin Zhao, Yan Jin, Yao Meng, Haoran Cheng, Xingrong Zhang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7275090/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 4 You are reading this latest preprint version Abstract With the development of industry, the irregular discharge of some oily wastewater and the occurrence of marine oil spill accidents, the water resources environment has been affected to varying degrees, and also jeopardize human health to varying degrees. In recent years, the problem of oil-water separation has received a lot of attention, and it is extremely important to find a simple and efficient oil-water separation method. In this study, we used dopamine-induced enhancement of boron nitride attachment, followed by the use of silica combined with long carbon chains of octadecyltrichlorosilane to achieve surface superhydrophobicity. The prepared superhydrophobic paper reaches a superhydrophobic angle of 165°, and the oil-water separation efficiency reaches an efficiency of more than 99%, and its separation efficiency and hydrophobic angle still remain very good after 40 times of cyclic separations. Water-in-oil emulsions can also be separated with a separation efficiency of up to 89.2%, which stabilizes after 10 cycles of separation. It maintains an excellent hydrophobicity under harsh environmental conditions such as organic, acidic and alkaline solutions, and also has good friction resistance. Overall, this study provides a new direction for the development of durable and multifunctional superhydrophobic paper to solve the problem of oil-water separation, as well as a new research avenue for the potential application of paper-based materials. Polydopamine Superhydrophobic paper Durability Water-oil separation Full Text Additional Declarations No competing interests reported. Supplementary Files GraphicalAbstract.pdf Highlightsforreview.docx Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 24 Aug, 2025 Editor assigned by journal 24 Aug, 2025 Submission checks completed at journal 05 Aug, 2025 First submitted to journal 01 Aug, 2025 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. 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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-7275090","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":504934333,"identity":"7f616334-e452-4298-b2fc-7e18ea42aaf4","order_by":0,"name":"Hexin Zhao","email":"","orcid":"","institution":"Qingdao University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Hexin","middleName":"","lastName":"Zhao","suffix":""},{"id":504934334,"identity":"c32a22e3-a4fb-4c8d-bfe3-e63c1e138bd0","order_by":1,"name":"Yan Jin","email":"","orcid":"","institution":"Qingdao University of Science and 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