Celery Stalk-Derived Carbon Dots for Detection of Copper Ions
- Authors
- Shasha, Peng; Kim, Ji Hyeon; Park, Sang Joon
- Issue Date
- Oct-2019
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Celery Stalks; Carbon Dots; Detection of Cu2+ Ions; Fluorescence Quenching
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.19, no.10, pp.6077 - 6082
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 19
- Number
- 10
- Start Page
- 6077
- End Page
- 6082
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/933
- DOI
- 10.1166/jnn.2019.17022
- ISSN
- 1533-4880
- Abstract
- Fluorescent carbon dots (CDs) have motivated a significant amount of research because of their properties such as excellent biocompatibility and low toxicity. In this work, water-soluble fluorescent CDs were synthesized from celery stalks by a one-step, low-cost hydrothermal process. The as-prepared CDs had the average size of 3.7 +/- 1.1 nm, and they emitted bright blue photoluminescence. The surface functional groups and states were investigated via Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy. The blue fluorescence of the as-prepared CDs was effectively quenched by Cu2+ ions compared to other competing metal ions. Therefore, these CDs are promising probes for the fluorescence detection of Cu2+ ions. Moreover, an excellent linear relationship was obtained between the relative fluorescence intensity and the concentration of Cu2+ ions in the linear detection range 0-100 mu M, and the limit of detection was 0.132 mu M.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 공과대학 > 화공생명공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/933)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.