期刊
CARBON
卷 49, 期 2, 页码 605-609出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2010.10.004
关键词
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资金
- National Basic Research Program of China (973 Program) [2010CB934500, 2006CB933000]
- Natural Science Foundation of China (NSFC) [20801010, 20803008, 201073127, 201071104]
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China (FANEDD) [200929]
Monodispersed water-soluble fluorescent carbon nanoparticles (CNPs) were synthesized directly from glucose by a one-step alkali or acid assisted ultrasonic treatment. The CNPs were characterized by transmission electron microscopy, optical fluorescent microscopy, fluorescent spectrophotometry, fourier transform infrared spectrophotometry and ultraviolet-visible spectrophotometry. The results showed that the particle surfaces were rich in hydroxyl groups, giving them high hydrophilicity. The CNPs could emit bright and colorful photoluminescence covering the entire visible-to-near infrared (NIR) spectral range. Notably, the NIR emission of the CNPs could be obtained by NIR excitation. Furthermore, these CNPs also had excellent up-conversion fluorescent properties. (C) 2010 Elsevier Ltd. All rights reserved.
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