Journal
CARBOHYDRATE POLYMERS
Volume 172, Issue -, Pages 93-101Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2017.04.086
Keywords
Bacterial cellulose; Carbon dots; Fluorescence; Sensor; Detection
Categories
Funding
- National Natural Science Foundation of China [51641303]
- 111 Project [B17021]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Natural Science Foundation of Jiangsu Province [BK20150155]
- Innovation Program for Graduate Education in Jiangsu Province [KYLX16_0794]
- Fundamental Research Funds for the Central Universities [JUSRP51621A]
- Department of Education in Anhui Province of China [2015LJRCTD001]
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Nitrogen-doped carbon dots (N-CDs) were synthesized through a facile hydrothermal method using citric acid (CA) and ethanediamine (EDA) as precursors. A green and simple fluorescence biosensor was obtained by biosynthesis of bacterial cellulose (BC)/N-CDs. As-prepared N-CDs with rich functional groups exhibited a blue emission under the excitation wavelength of 350 nm. Biosynthesis of BC/N-CDs was analyzed by Digital photos, Fourier Transform Infrared (FTIR) and Transmission Electron Microscopy (TEM). The results indicated that N-CDs were successfully anchored on BC. As-prepared BC/N-CDs were applied to the detection of Fe3+ in aqueous solution. Spectroscopic data revealed that, fluorescence materials prepared presented an sensitive response to Fe3+ in acceptable range of 0.5-600 mu M and ultralow detection limit of 84 nM as a fluorescence sensor. Furthermore, the results also indicate that a novel BC/N-CDs composite has great potential for the detection of Fe3+ ions based on membrane fluorescence materials. (C) 2017 Elsevier Ltd. All rights reserved.
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