Article ; Online: Exploration of the impact of graphene oxide, acetylenic gemini, and CTAT on the photophysical and aggregation properties of dipolar coumarin 153.
Physical chemistry chemical physics : PCCP
2024 Volume 26, Issue 11, Page(s) 8900–8918
Abstract: Advanced spectroscopic techniques have been utilized to study the interaction between the laser dye coumarin 153 (C153) and graphene oxide (GO) nanoparticles. GO was synthesized using a modified Hummers' method and characterized by UV-vis spectroscopy, ... ...
| Abstract | Advanced spectroscopic techniques have been utilized to study the interaction between the laser dye coumarin 153 (C153) and graphene oxide (GO) nanoparticles. GO was synthesized using a modified Hummers' method and characterized by UV-vis spectroscopy, Raman laser spectroscopy, FTIR-ATR spectroscopy, FESEM, HR-TEM, and XRD techniques. The GO@C153 composite was formed by mixing two aqueous solutions of GO and C153 due to their strong interaction through stacking and hydrophobic interactions. In this case, GO acts as an effective fluorescence quencher for C153 molecules, which undergo H-type aggregation in the presence of GO. The Stern-Volmer equation and time-dependent fluorescence studies were utilized to analyse the mechanism of fluorescence quenching. According to the findings, both static and dynamic quenching processes are responsible for the reduction in fluorescence intensity. The effect of surfactants (both cetyltrimethylammonium |
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| Language | English |
| Publishing date | 2024-03-13 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 1476244-4 |
| ISSN | 1463-9084 ; 1463-9076 |
| ISSN (online) | 1463-9084 |
| ISSN | 1463-9076 |
| DOI | 10.1039/d3cp05361j |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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