ECONOMIC WAY OF SYNTHESIS OF GREEN FLUORESCENT CARBON NANO PARTICLES FROM LEMON JUICE AS A NEW CARBON SOURCE

Abstract

ABSTRACT

In the development of materials science, carbon-based materials are crucial. Carbon nanoparticles (CNPs) are one of the most interesting carbon-based nanomaterials which because of water insolubility formerly could not be employed in the biological fields. Recently, large efforts have been made to develop green routes in order to synthesize water soluble CNPs from economic sources. In this regard, in this study a simple ecofriendly economic method for the preparation water soluble green fluorescent Carbon Dots (CNPs) have been developed by microwave assisted method from lemon juice. The synthesized CNPs were characterized by UV-Visible absorption spectra, Fluorescence spectrophotometer as well as Fourier Transform Infrared Spectroscopy (FTIR). The results reveal that the as prepared CNPs emit bright green photo luminescence and the surface was rich in hydroxyl and carboxylic groups and shows excellent water solubility. The one-step economic green preparation process is simple and efficient and it is not necessary to use a strong acidic solvent or modify the surface of the reagent, which makes this approach very suitable for large-scale production, strong fluorescence and excellent biocompatibility.