期刊
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
卷 101, 期 4, 页码 506-512出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/03067319.2019.1669581
关键词
Carbon dots; acetic acid; luminescence; pH sensing; folic acid sensing
资金
- Kerala government
Greenish yellow emitting carbon dots prepared from acetic acid through a one pot synthesis can continuously monitor pH and exhibit linear dependence of luminescence with this parameter. Additionally, they can also be used for sensing bio-molecules such as folic acid.
Greenish yellow emitting carbon dots are prepared from acetic acid through a one pot synthesis. The dots are characterised using TEM, XRD, FTIR, UV?visible absorbance spectroscopy, fluorescence spectroscopy and Raman spectral analysis. The system could continuously monitor the pH as a function of luminescence over a wide range (2?12), and exhibited linear dependence of luminescence with the former parameter. In addition, the fluorescence of the system is also exploited for the sensing of one of the significant bio-molecule, folic acid with a detection limit of 0.72 ?M.
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