| Literature DB >> 27838801 |
Foad Salehnia1, Farnoush Faridbod2, Amin Shiralizadeh Dezfuli1, Mohammad Reza Ganjali1,3, Parviz Norouzi1,3.
Abstract
In this work, graphene quantum dots (GQDs) was synthesized through hydrothermal method and used as a photoluminescent bulk nano-chemosensor for detection of Ce3+ ion in the aqueous solution. The synthesized GQD was characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), UV-Visible absorption and fluorescence emission spectroscopy. The sheet diameters of the synthesized GQDs were mainly distributed in the range of 15-20 nm. The interactions of GQDs with common cations and lanthanide ions were studied by fluorescence spectroscopy. Among the tested cations, Ce3+ ions was able to quench the fluorescence emission intensity of the GQD selectively. This quenching can be attributed to a redox mechanism between Ce3+ ion on the GQDs surface.Entities:
Keywords: Cerium ions; Fluorescence quenching; Graphene quantum dots; Nano-chemosensor
Year: 2016 PMID: 27838801 DOI: 10.1007/s10895-016-1962-5
Source DB: PubMed Journal: J Fluoresc ISSN: 1053-0509 Impact factor: 2.217