Autore: Yazan Abdulmuttaleb,Bahaa Chiad
Formato: Copertina flessibile
Pagine: 96
Data Pubblicazione: 2020-07-03
Edizione: 1
Lingua: English
Descrizione:
In this study, the highly fluorescence carbon quantum dots (CQDs) were synthesized using the lowtemperature hydrothermal carbonization method from orange juice mixed with ethanol using a custom autoclave with special conditions including (120 C temperature and 1 atmosphere pressure). The results obtained from tests achieved on the samples showed the following: Xray diffraction analysis showed that the prepared carbon dots were of a noncrystalline nature, the FTIR spectra proved that the carbon dots possessed different types of surface functional groups such as COC/CO, C=C, C=O, CH and OH. The AFM and SEM measurements showed that the carbon dots had small particles with average size about 13 nm. The produced carbon dots have optical properties, are highly watersoluble, lowtoxic and biocompatible and operate on the principle of excitation dependent emission and can be used in many applications such as laser field and bioimaging and so on. The heavy complex material can be mixed with CQDs or organic dyes to get the same behavior of laser threshold.