{"title":"Tailoring Morphology and Fluorescence Properties of Zeolitic Imidazolate Frameworks via Carbon Dots","authors":"Hui-Jun Li, Hao Wang, Tianran Si, Huan Wang, Shengqi Huang, Yihan Wu, Qiaobo Liao*, Ding Wang* and Ying Li*, ","doi":"10.1021/acsanm.4c02441","DOIUrl":null,"url":null,"abstract":"<p >The assembly of carbon dots (CDs) and metal–organic frameworks (MOFs) into MOF@CDs composite materials is rapidly advancing in the field of nanoscience, driven by the potential to harness or enhance the advantages of both CDs and MOFs. However, the exploration of MOFs@CDs with controllable morphologies poses a considerable challenge. Herein, we present a universal synthetic strategy for zeolitic imidazolate frameworks (ZIFs)@CDs composite materials with tunable morphologies and solid-state fluorescence by modulating the surface structure of carbon dots and adjusting the reaction temperature. The assembly process of this strategy is mainly governed by the competitive coordination relationship between the surface functional groups of the carbon dots and the imidazole ligand and the zinc metal sources. Besides, the incorporation of ZIFs@CDs into sodium alginate (SA) to prepare a hydrogel (SA/ZIFs@CDs) effectively enabled the identification and adsorption of copper ions in which the 24-h adsorption capacity of SA/ZIF-L@CD<sub>1</sub> at an initial Cu<sup>2+</sup> concentration of 500 ppm could reach 200.53 mg g<sup>–1</sup>. Moreover, the hydrogels dressing after adsorption of Cu<sup>2+</sup> could be used to resist the growth of <i>Escherichia coli</i> (<i>E. coli</i>) and <i>Staphylococcus aureus</i> (<i>S. aureus</i>). This work provides insights for further advancements in structural design and a deeper understanding of the assembly behavior of the MOFs.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Nano Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsanm.4c02441","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The assembly of carbon dots (CDs) and metal–organic frameworks (MOFs) into MOF@CDs composite materials is rapidly advancing in the field of nanoscience, driven by the potential to harness or enhance the advantages of both CDs and MOFs. However, the exploration of MOFs@CDs with controllable morphologies poses a considerable challenge. Herein, we present a universal synthetic strategy for zeolitic imidazolate frameworks (ZIFs)@CDs composite materials with tunable morphologies and solid-state fluorescence by modulating the surface structure of carbon dots and adjusting the reaction temperature. The assembly process of this strategy is mainly governed by the competitive coordination relationship between the surface functional groups of the carbon dots and the imidazole ligand and the zinc metal sources. Besides, the incorporation of ZIFs@CDs into sodium alginate (SA) to prepare a hydrogel (SA/ZIFs@CDs) effectively enabled the identification and adsorption of copper ions in which the 24-h adsorption capacity of SA/ZIF-L@CD1 at an initial Cu2+ concentration of 500 ppm could reach 200.53 mg g–1. Moreover, the hydrogels dressing after adsorption of Cu2+ could be used to resist the growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). This work provides insights for further advancements in structural design and a deeper understanding of the assembly behavior of the MOFs.
期刊介绍:
ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.