An in Situ Crystal Growth of Metal Organic Frameworks-5 on Electrospun PVA Nanofibers
Source abstract
Abstract
Abstract In this study, a simple, general and straightforward method for growing metal-organic frameworks (MOFs) crystals directly on nanofibers is presented. A chelating polymer was first blent with metal cation and then electrospun. The obtained nanofibers were immersed in a linker solution. Metal cations were released and the metal-organic frameworks crystals were grown on the fibers’ surface. In this work, this method was tested with polyvinyl alcohol as chelating polymer, Zn2+ as metal cation and Terephthalic acid as linker. The pair cation/linker corresponds to the MOF-5. The latter is a robust metal organic framework formed from Zn4O nodes with 1,4-benzodicarboxylic acid struts between the nodes. SEM images revealed that the MOF-5 nanocrystals have grown along the PVA/Zn2+ nanofibers that served as the crystals’ growth template by providing the Zn2+ ions. This result was also confirmed by infrared spectroscopy, which indicates the presence of characteristic bands of MOF-5 in the modified nanofibers spectrum. Moreover, the X-ray diffraction showed that MOF-5 material was well crystallized on the nanofibers surface according to a cubic symmetry with a space group Fm-3m and a lattice constant a = 25.8849 Å.
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Research context
OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Nanoplatforms for cancer theranostics · Advanced Nanomaterials in Catalysis
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Affiliations
Laboratory for Advanced Materials and Interfaces , University of Monastir , Faculty of Sciences of Monastir , environmental Boulevard 5000 Monastir , Tunisia
Laboratory of Textile Physics and Mechanics EA 4365 , University of Haute Alsace , 11 rue Alfred Werner 68093 Mulhouse Cedex , France
Research Center for Microelectronics and Nanotechnologies . Technopole Sousse, 4000 , Sahloul Sousse , Tunisia
References (27)
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