Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 496, Issue -, Pages 425-433Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.01.121
Keywords
Carbon materials; Quantum dots; Upconversion; Photocatalysis
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Funding
- National Nature Science Foundation of China [NSFC21207015, 21507029, 21501138]
- Natural Science Foundation of Hubei Province, China [2015CFB177]
- Key Laboratory of Industrial Ecology and Environmental Engineering, China Ministry of Education
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It finds that CQDs synthesized by hydrothermal method possess obvious upconversion properties that could transfer low energy photons to high energy photons, resulting in enhanced visible light response and utilization. Herein, carbon quantum dots (CQDs) modified TiO2 photocatylysts were successfully prepared by a facile sol-gel method. Photophysical and surficial properties of the as-prepared composite photocatalyst were investigated in details. Furthermore, photocatalytic performance was tested by degrading methylene blue (MB) under visible light irradiation. The degradation efficiency of methylene blue (MB) is as high as 90% within 120 min, which is 3.6 times higher than that of pure TiO2.(C) 2017 Published by Elsevier Inc.
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