期刊
CARBOHYDRATE POLYMERS
卷 151, 期 -, 页码 245-250出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.05.063
关键词
Carboxymethyl cellulose; Carbon dots; Composite; Sunlight conversion; Film
资金
- National Natural Science Foundations of China [21571067, 21371062]
- Foundation for High-level Talents in Higher Education of Guangdong Province
- Project for Construction of High-level University in Guangdong Province
- Teamwork Projects - Guangdong Natural Science Foundation [S2013030012842]
- Provincial Science and technology project of Guangdong Province [2014A010105035, 2015B090903074]
Transparent sunlight conversion film based on carboxymethyl cellulose (CMC) and carbon dots (CDs) has been developed for the first time through dispersion of CDs in CMC aqueous solution. Due to the hydrogen bonds interaction, CMC can effectively absorb the CDs, whose surfaces are functionalized by lots of polar groups. The results from atomic force microscopy (AFM), scanning electron microscopy (SEM) confirm that the composite film possesses a homogeneous and compact structure. Besides, the CMC matrix neither competes for absorbing excitation light nor absorbs the emissions of CDs, which reserves the inherent optical properties of the individual CDs. The composite films can efficiently convert ultraviolet light to blue light. What's more, the film is transparent and possesses excellent mechanical properties, expected to apply in the field of agricultural planting for sunlight conversion. (C) 2016 Elsevier Ltd. All rights reserved.
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