{"title":"基于功能缺陷策略的纳米核壳磁SO₃h功能化共价有机骨架在阳离子染料净化中的吸附行为与机理","authors":"Chuqiang Que, Hongwei Zhu, Chang Liu, Ziang Qiang, Chen Xu, Minjie Li, Jia Liu, Jing Cao, Pengjian Zuo, Jing Wang, Xin Yang","doi":"10.1016/j.jhazmat.2025.139516","DOIUrl":null,"url":null,"abstract":"With the rapid expansion of textile printing and aquaculture industries, efficient dye wastewater treatment is urgently needed. Here, magnetic sulfonic acid-functionalized covalent organic frameworks (Fe<sub>3</sub>O<sub>4</sub>@TpBD-SO<sub>3</sub>H COFs) were synthesized via a functional defect strategy using 4-aminobenzene-1,3-disulfonic acid (ADSA) as a competing monomer, generating periodic and sulfonate-rich nano adsorbent. Adsorption experiments involving malachite green (MG) and crystal violet (CV) in single and binary systems, supported by adsorption model fitting, indicated multimolecular adsorption through non-parallel molecular orientations. In binary adsorption system, MG enhanced CV adsorption (synergistic effect), whereas CV suppressed MG adsorption (antagonistic effect). Dynamic competitive adsorption tests suggested that adsorption configuration transitions between single and binary systems influenced this co-adsorption phenomenon. Incorporating Fe<sub>3</sub>O<sub>4</sub> magnetic cores rendered Fe<sub>3</sub>O<sub>4</sub>@TpBD-SO<sub>3</sub>H COFs highly hydrophilic, achieving excellent adsorption capacities for MG (1010.6<!-- --> <!-- -->mg/g) and other cationic dyes, while minimally adsorbing anionic dyes. Moreover, the material exhibited strong resistance to interference from metal salts and maintained stable adsorption performance after six regeneration cycles. Successful purification of real wastewater samples further demonstrates its practical potential for selective cationic dye removal from complex aqueous systems.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"739 1","pages":""},"PeriodicalIF":11.3000,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nano-Size Core-Shell Magnetic SO₃H-Functionalized Covalent Organic Frameworks Via a Functional Defect Strategy for Cationic Dye Purification: Adsorption Behavior and Mechanism\",\"authors\":\"Chuqiang Que, Hongwei Zhu, Chang Liu, Ziang Qiang, Chen Xu, Minjie Li, Jia Liu, Jing Cao, Pengjian Zuo, Jing Wang, Xin Yang\",\"doi\":\"10.1016/j.jhazmat.2025.139516\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With the rapid expansion of textile printing and aquaculture industries, efficient dye wastewater treatment is urgently needed. Here, magnetic sulfonic acid-functionalized covalent organic frameworks (Fe<sub>3</sub>O<sub>4</sub>@TpBD-SO<sub>3</sub>H COFs) were synthesized via a functional defect strategy using 4-aminobenzene-1,3-disulfonic acid (ADSA) as a competing monomer, generating periodic and sulfonate-rich nano adsorbent. Adsorption experiments involving malachite green (MG) and crystal violet (CV) in single and binary systems, supported by adsorption model fitting, indicated multimolecular adsorption through non-parallel molecular orientations. In binary adsorption system, MG enhanced CV adsorption (synergistic effect), whereas CV suppressed MG adsorption (antagonistic effect). Dynamic competitive adsorption tests suggested that adsorption configuration transitions between single and binary systems influenced this co-adsorption phenomenon. Incorporating Fe<sub>3</sub>O<sub>4</sub> magnetic cores rendered Fe<sub>3</sub>O<sub>4</sub>@TpBD-SO<sub>3</sub>H COFs highly hydrophilic, achieving excellent adsorption capacities for MG (1010.6<!-- --> <!-- -->mg/g) and other cationic dyes, while minimally adsorbing anionic dyes. Moreover, the material exhibited strong resistance to interference from metal salts and maintained stable adsorption performance after six regeneration cycles. Successful purification of real wastewater samples further demonstrates its practical potential for selective cationic dye removal from complex aqueous systems.\",\"PeriodicalId\":361,\"journal\":{\"name\":\"Journal of Hazardous Materials\",\"volume\":\"739 1\",\"pages\":\"\"},\"PeriodicalIF\":11.3000,\"publicationDate\":\"2025-08-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Hazardous Materials\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jhazmat.2025.139516\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hazardous Materials","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.jhazmat.2025.139516","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Nano-Size Core-Shell Magnetic SO₃H-Functionalized Covalent Organic Frameworks Via a Functional Defect Strategy for Cationic Dye Purification: Adsorption Behavior and Mechanism
With the rapid expansion of textile printing and aquaculture industries, efficient dye wastewater treatment is urgently needed. Here, magnetic sulfonic acid-functionalized covalent organic frameworks (Fe3O4@TpBD-SO3H COFs) were synthesized via a functional defect strategy using 4-aminobenzene-1,3-disulfonic acid (ADSA) as a competing monomer, generating periodic and sulfonate-rich nano adsorbent. Adsorption experiments involving malachite green (MG) and crystal violet (CV) in single and binary systems, supported by adsorption model fitting, indicated multimolecular adsorption through non-parallel molecular orientations. In binary adsorption system, MG enhanced CV adsorption (synergistic effect), whereas CV suppressed MG adsorption (antagonistic effect). Dynamic competitive adsorption tests suggested that adsorption configuration transitions between single and binary systems influenced this co-adsorption phenomenon. Incorporating Fe3O4 magnetic cores rendered Fe3O4@TpBD-SO3H COFs highly hydrophilic, achieving excellent adsorption capacities for MG (1010.6 mg/g) and other cationic dyes, while minimally adsorbing anionic dyes. Moreover, the material exhibited strong resistance to interference from metal salts and maintained stable adsorption performance after six regeneration cycles. Successful purification of real wastewater samples further demonstrates its practical potential for selective cationic dye removal from complex aqueous systems.
期刊介绍:
The Journal of Hazardous Materials serves as a global platform for promoting cutting-edge research in the field of Environmental Science and Engineering. Our publication features a wide range of articles, including full-length research papers, review articles, and perspectives, with the aim of enhancing our understanding of the dangers and risks associated with various materials concerning public health and the environment. It is important to note that the term "environmental contaminants" refers specifically to substances that pose hazardous effects through contamination, while excluding those that do not have such impacts on the environment or human health. Moreover, we emphasize the distinction between wastes and hazardous materials in order to provide further clarity on the scope of the journal. We have a keen interest in exploring specific compounds and microbial agents that have adverse effects on the environment.