Preparation and characterization of the carbon quantum dots
Other Title(s)
تحضير و مميزات النقاط الكمية الكربونية
Joint Authors
Muhsin, Ali Atiyyah
Abbas, Said Jabbar
Source
Issue
Vol. 11, Issue 2 (31 Dec. 2019), pp.43-49, 7 p.
Publisher
University of Kufa Faculty of Science Department of Physics
Publication Date
2019-12-31
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Abstract EN
The carbon quantum dots (CQDs) were prepared by using an easy and economic one – pot method.
The starting materials are the ascorbic acid as a carbon source and copper acetate as a catalyst to accelerate the reaction.
The structural and optical properties of the CQDs are studied by UV-VIS spectrophotometer and photoluminescence (PL) measurements, transmission electron microscope (TEM), X-ray diffraction (XRD) and Fourier transform-infrared spectroscopy (FTIR).
The excitation wavelength and the pH-dependent of PL properties was investigated also.
The results show that the CQDs have strong absorption peak in the UV-region.
The PL is the excitation wavelength dependent.
The PL of CQDs decreases upon lowering the pH value of the solutions and the PL peaks shifted to the shorter wavelength.
The average size of the CQDs is 4 nm from the TEM measurements.
American Psychological Association (APA)
Muhsin, Ali Atiyyah& Abbas, Said Jabbar. 2019. Preparation and characterization of the carbon quantum dots. Journal of Kufa-Physics،Vol. 11, no. 2, pp.43-49.
https://search.emarefa.net/detail/BIM-945928
Modern Language Association (MLA)
Muhsin, Ali Atiyyah& Abbas, Said Jabbar. Preparation and characterization of the carbon quantum dots. Journal of Kufa-Physics Vol. 11, no. 2 (2019), pp.43-49.
https://search.emarefa.net/detail/BIM-945928
American Medical Association (AMA)
Muhsin, Ali Atiyyah& Abbas, Said Jabbar. Preparation and characterization of the carbon quantum dots. Journal of Kufa-Physics. 2019. Vol. 11, no. 2, pp.43-49.
https://search.emarefa.net/detail/BIM-945928
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 48-49
Record ID
BIM-945928