Luminescent fibers of [Au(SPh)]n for the formation of gold nanoparticles-based composite materials and their application in Surface Enhanced Raman Spectroscopy
| Autor: | Vaidya, S., Veselska, O., G., Ledoux, A., Fateeva, Demessence, A. |
|---|---|
| Přispěvatelé: | IRCELYON-C'Durable (CDURABLE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IRCELYON, ProductionsScientifiques |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | 47th IUPAC Chemistry Congress 47th IUPAC Chemistry Congress, Jul 2019, Paris, France |
| Popis: | SSCI-VIDE+CDFA+SVD:OVE:ADM; National audience; Fibers have been extensively used as a support for the nanoparticles (NPs) as they can be recovered easily from the reaction mixture and can be used multiple times. Thus, these NP decorated fibers have applications in various catalytic reactions, sensing/detection of toxic materials etc. The high surface area of the fibers allows a high NP loading and good dispersion, which further increases of the catalytic activity or sensing ability of the NPs. By far, most of the polymeric fibers are synthesized by electrospinning method, and the insertion of NPs, synthesized separately, required an extra step. Moreover, sometime a linker is needed for facilitating the interaction between those two.On the other hand, few coordination polymers are able to form spontaneous fibers by self-assembly. Here we have synthesized fibers of 1D Au(I)-based coordination polymer with thiophenolate as the organic ligand, [Au(SPh)]n. These fibers are flexible with an average diameter of 300 nm and length of few micrometers. In addition, due to the presence of d10-Au(I), these fibers are highly red emissive at room temperature. Moreover, due to the strong gold-sulfur interactions, they are highly stable under extreme acidic and basic conditions. Also, one of the advantage of having fibers of coordination polymers is the possibility to generate gold NPs on their surface by simple calcination at 200°C-230°C. These gold NPs have an average diameter of 50 nm and exhibit surface plasmon resonance. Because these gold NPs show a good interaction with the surface of the fibers of the coordination polymer, these composite materials have been studied for the detection of molecules in very small concentration by exhibiting a very good Surface Enhanced Raman Spectroscopy (SERS) effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|