Self-assembly of nitrogen-doped carbon dots anchored on bacterial cellulose and their application in iron ion detection

被引:78
作者
Lv, Pengfei [1 ]
Yao, Yixin [1 ]
Li, Dawei [1 ]
Zhou, Huimin [1 ]
Naeem, Muhammad Awais [1 ]
Feng, Quan [2 ]
Huang, Jieyu [1 ]
Cai, Yibing [1 ]
Wei, Qufu [1 ]
机构
[1] Jiangnan Univ, Key Lab Ecotext, Wuxi 214122, Peoples R China
[2] Anhui Polytech Univ, Key Lab Text Fabr, Wuhu 241000, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
Bacterial cellulose; Carbon dots; Fluorescence; Sensor; Detection; LABEL-FREE DETECTION; LUMINESCENT; MEMBRANES; BIOSYNTHESIS; NANODOTS; FACILE; BC;
D O I
10.1016/j.carbpol.2017.04.086
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
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.
引用
收藏
页码:93 / 101
页数:9
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