Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 198, Issue -, Pages 1-6Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2018.02.062
Keywords
Doped graphitic carbon nitride; Baicalein; Fluorescence quenching
Categories
Funding
- National Natural Science Foundation of China [21175086]
- Natural Science Foundation of Shanxi Province of China [201601D011018]
- PhD Start-up Foundation of Shanxi Medical University [03201514]
- Shanxi Medical University of Science and Technology Innovation Fund [01201312]
- Shanxi College Students' Innovative Entrepreneurial Training Project [2017136]
- College Students' Innovative Entrepreneurial Training Project of Shanxi Medical University [20162202]
- 331 Early Career Research Grant of Basic Medical College of Shanxi Medical University [201417]
- Shanxi Scholarship Council of China [2014-035]
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Phosphorus doped graphitic carbon nitride (P-g-C3N4) nanosheets were synthesized by calcination. P-g-C3N4 nanosheets were characterized by XRD, XPS, TEM, fluorescence, ultraviolet-visible absorption and Fourier transform infrared spectroscopy. The fluorescence of the P-g-C3N4 nanosheets was gradually quenched with the increase in the concentration of baicalein at room temperature. The proposed probe was used for the determination of baicalein in the concentration 2.0-30 mu M with a detection limit of 53 nM. The quenching mechanism was discussed. The P-g-C3N4 nanosheets have been successfully applied for effective and selective detection of baicalein in human urine samples and blood samples. (C) 2018 Elsevier B.V. All rights reserved.
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