- Upconversion carbon quantum dots as visible light responsive component for efficient enhancement of photocatalytic performance
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- 论文类型： 期刊论文
- 发表时间： 2017-06-15
- 发表刊物： JOURNAL OF COLLOID AND INTERFACE SCIENCE
- 收录刊物： SCIE、EI、PubMed、Scopus
- 卷号： 496
- 页面范围： 425-433
- ISSN号： 0021-9797
- 关键字： Carbon materials; Quantum dots; Upconversion; Photocatalysis
- 摘要： 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.
