6533b836fe1ef96bd12a1113

RESEARCH PRODUCT

Application of graphene quantum dots in heavy metals and pesticides detection

D. SlađanaM. OliveraAurelio BonaseraJ. Svetlana

subject

Graphene Quantum DotsX-ray photoelectron spectroscopymalathionatomic force microscopyphotoluminescence sensorsUV-Vis spectroscopycopper (II) ionglyphosatephotoluminescence spectroscopyGraphene Quantum Dotelectrochemical oxidationethylenediaminecopper (II) ionsgraphite rodgraphite rods

description

Graphene Quantum Dots (GQDs) were produced using electrochemical oxidation of graphite rods. Obtained GQDs were gamma-irradiated in the presence of the N atoms source, ethylenediamine. Both structural and morphological changes were investigated using UV-Vis, X-ray photoelectron and photoluminescence (PL) spectroscopy as well as atomic force microscopy. The ability of both types of dots to change PL intensity in the presence of pesticides such as malathion and glyphosate, as well as copper (II) ions was detected. These preliminary results indicated a high potential of produced GQDs to be applied as non-enzymatic PL sensors for the detection of selected pesticides and metal ions. 26th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 23-24, 2020

http://hdl.handle.net/10447/454670