Synthesis of Carbon Quantum Dots from Jujubes for Detection of Iron(III) Ions
- Authors
- Kim, Kwonbeen; Kim, Jongsung
- Issue Date
- Feb-2018
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Carbon Quantum Dot; Jujube; Fe3+ Detection; Hydrothermal Method
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.18, no.2, pp.1320 - 1322
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 18
- Number
- 2
- Start Page
- 1320
- End Page
- 1322
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/4125
- DOI
- 10.1166/jnn.2018.14901
- ISSN
- 1533-4880
- Abstract
- In this work, carbon quantum dots (CQDs) were synthesized from jujubes via a hydrothermal process. The as-prepared CQDs have average sizes of about 3.12 nm and emit blue photoluminescence (PL) in the range 380-530 nm, depending on the excitation wavelength. The functional group compositions and structures of the CQDs were investigated via Fourier transform infrared spectroscopy and X-ray powder diffraction. Based on these analyses, a linear relationship was obtained between the relative fluorescence intensity and concentration of Fe3+ within the range of 0 to 200 mu M (R-2 = 0.9927). Fe3+ quenched the PL intensity of the CQDs more than other heavy metals, which indicates that CQDs can be used effectively as an Fe3+ sensing media.
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Collections - 공과대학 > 화공생명공학과 > 1. Journal Articles
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