Construction of The Heterojunction with Basic Bismuth Nitrates and CuCr-Cl-LDH for Enhanced Photocatalytic Degradation of Tetracycline Under Visible-light

Construction of The Heterojunction with Basic Bismuth Nitrates and CuCr-Cl-LDH for Enhanced Photocatalytic Degradation of Tetracycline Under Visible-light | 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 Construction of The Heterojunction with Basic Bismuth Nitrates and CuCr-Cl-LDH for Enhanced Photocatalytic Degradation of Tetracycline Under Visible-light Yinyan Dou, Yanming Shen, Junhua Wen, Lei Yang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5821152/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 19 May, 2025 Read the published version in Brazilian Journal of Chemical Engineering → Version 1 posted 5 You are reading this latest preprint version Graphical Abstract Abstract Layered double hydroxides (LDH) present advantages in photocatalytic degradation of organic pollutants due to excellent adsorption capacity, special layered structure, robust responsiveness to ultraviolet and visible light, etc. In order to improve the utilization efficiency of photo-generated charges, in this work, we combined basic bismuth nitrates (BBN) with CuCr-Cl-LDH to fabricate a heterojunction composite. The target heterojunction was synthesized by hydrothermal method. The resulted composites were characterized by techniques such as XRD, XPS, SEM, TEM, UV–vis DRS, BET and electrochemical performance test. The structure, morphology, optical and electrochemical performance were discussed. The results showed that the combination of BBN and CuCr-Cl-LDH formed the S-scheme heterojunction, promoting the separation of electrons and holes and remarkably improving the photocatalytic activity of CuCr-Cl-LDH. The composite that prepared by combination of 7.95 g of Bi (NO3)3·5H2O with 1 g of CuCr-Cl-LDH presented the optimal photocatalytic degradation efficiency of 96% after 2 h irradiation by visible-light at condition as photocatalyst dosage of 0.5 g·L–1 and initial tetracycline (TC) concentration of 20 mg·L–1. During the photocatalytic degradation process, the main active radicals were h+, followed by •O2–, and •OH took a relative weak role. After use of 3 cycles, the heterojunction remained the photocatalytic efficiency of 82%, showing a preliminary feasibility to application in wastewater treatment. LDH-based photocatalyst Heterojunction Basic Bismuth Nitrate Photocatalysis Full Text Supplementary Files Supplementaaryinformation1.docx Cite Share Download PDF Status: Published Journal Publication published 19 May, 2025 Read the published version in Brazilian Journal of Chemical Engineering → Version 1 posted Reviewers agreed at journal 22 Mar, 2025 Reviewers invited by journal 22 Mar, 2025 Editor invited by journal 21 Mar, 2025 Editor assigned by journal 20 Mar, 2025 First submitted to journal 19 Mar, 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-5821152","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":432414695,"identity":"72c22d03-952c-40f1-b37b-2021fe198764","order_by":0,"name":"Yinyan Dou","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA2UlEQVRIiWNgGAWjYBACfvnDhx8k/pGQY2NmPkCcFskZbGkGDxtsjPnZ2xKI02Jwg8dA8mFDWuLMnjMGRLrsdo+BQeKOw4wbbuR8vPGGwU5Ot4GADsY5xwoeJJ45zGxwI3ez5RyGZGOzAwS0MDMkbzBIYDvMBtSyTZqH4UDiNkJa2BgSDCSAWngMbuQ8I04Lj0SKgURiW5qEZM8ZNuK0SPAcSzNIOGNjAAxkY8s5BkT4xf548+GHPyok6tuYmR/eeFNhJ0dQC5qVxEYNkhZSdYyCUTAKRsGIAAD46EcaWlsqfwAAAABJRU5ErkJggg==","orcid":"","institution":"Shenyang University of Chemical Technology","correspondingAuthor":true,"prefix":"","firstName":"Yinyan","middleName":"","lastName":"Dou","suffix":""},{"id":432414696,"identity":"3fcdff60-b475-459b-b9f3-19e7b4ebf3f6","order_by":1,"name":"Yanming Shen","email":"","orcid":"https://orcid.org/0000-0001-5286-4677","institution":"Shenyang University of Chemical Technology","correspondingAuthor":false,"prefix":"","firstName":"Yanming","middleName":"","lastName":"Shen","suffix":""},{"id":432414697,"identity":"bac7ba28-ab06-45c7-922d-21b2e794800d","order_by":2,"name":"Junhua Wen","email":"","orcid":"","institution":"Shenyang University of Chemical Technology","correspondingAuthor":false,"prefix":"","firstName":"Junhua","middleName":"","lastName":"Wen","suffix":""},{"id":432414698,"identity":"98a312d7-18e2-47ca-ae6c-1e65d1d2d03a","order_by":3,"name":"Lei Yang","email":"","orcid":"","institution":"Shenyang University of Chemical Technology","correspondingAuthor":false,"prefix":"","firstName":"Lei","middleName":"","lastName":"Yang","suffix":""}],"badges":[],"createdAt":"2025-01-13 15:25:10","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5821152/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5821152/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s43153-025-00564-1","type":"published","date":"2025-05-19T15:57:36+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":79188494,"identity":"0755d19a-1235-46c4-9624-e9003704a36c","added_by":"auto","created_at":"2025-03-25 12:02:06","extension":"png","order_by":22,"title":"","display":"","copyAsset":false,"role":"graphical-abstract","size":22754,"visible":true,"origin":"","legend":"Layered double hydroxides (LDH) present advantages in photocatalytic degradation of organic pollutants due to excellent adsorption capacity, special layered structure, robust responsiveness to ultraviolet and visible light, etc. In order to improve the utilization efficiency of photo-generated charges, in this work, we combined basic bismuth nitrates (BBN) with CuCr-Cl-LDH to fabricate a heterojunction composite. The target heterojunction was synthesized by hydrothermal method. The resulted composites were characterized by techniques such as XRD, XPS, SEM, TEM, UV\u0026ndash;vis DRS, BET and electrochemical performance test. The structure, morphology, optical and electrochemical performance were discussed. The results showed that the combination of BBN and CuCr-Cl-LDH formed the S-scheme heterojunction, promoting the separation of electrons and holes and remarkably improving the photocatalytic activity of CuCr-Cl-LDH. The composite that prepared by combination of 7.95 g of Bi (NO)\u0026middot;5HO with 1 g of CuCr-Cl-LDH presented the optimal photocatalytic degradation efficiency of 96% after 2 h irradiation by visible-light at condition as photocatalyst dosage of 0.5 g\u0026middot;L and initial tetracycline (TC) concentration of 20 mg\u0026middot;L. During the photocatalytic degradation process, the main active radicals were h, followed by \u0026bull;O, and \u0026bull;OH took a relative weak role. 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