光子上转换
光催化
亚甲蓝
可见光谱
热液循环
材料科学
碳纤维
量子点
辐照
光子
光化学
降级(电信)
化学工程
复合数
光电子学
纳米技术
化学
催化作用
兴奋剂
光学
复合材料
有机化学
物理
计算机科学
工程类
电信
核物理学
作者
Jun Ke,Xinyong Li,Qidong Zhao,Baojun Liu,Shaomin Liu,Shaobin Wang
标识
DOI:10.1016/j.jcis.2017.01.121
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 120min, which is 3.6 times higher than that of pure TiO2.
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