Near-infrared light-induced photocatalysis of NaYF4:Yb, Tm@Cu2O core-shell nanocomposites

被引：17
|
作者：
Zhang, Junjie [1 ,2 ]
Qiao, Bo [1 ,2 ]
Liang, Zhiqin [1 ,2 ]
Zuo, Pengfei [1 ,2 ]
Wu, Qixiao [1 ,2 ]
Xu, Zheng [1 ,2 ]
Piao, Lingyu [3 ]
Zhao, Suling [1 ,2 ]
机构：
[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, Peoples R China
[3] Chinese Acad Sci, Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China
来源：
OPTICAL MATERIALS | 2018年 / 84卷
基金：
中国国家自然科学基金;
关键词：
Photocatalytic activity; Upconversion; NaYF4@ Cu2O; Nanoparticles; UP-CONVERSION LUMINESCENCE;
D O I：
10.1016/j.optmat.2018.06.053
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new near-infrared-responsive photocatalyst of NaYF4:Yb,Tm@Cu2O have been successfully synthesized by a simple method. Methylene blue as a model pollutant was used to study the photocatalytic activity of NaYF4:Yb,Tm@Cu2O composites, and the energy transfer process between NaYF4:Yb, Tm and Cu2O and the origin of the degradation of pollutants were investigated. It was found that the energy transfer route between NaYF4:Yb, Tm and Cu2O is an important factor for the overall photocatalytic activity. This study suggests a promising system to apply upconversion materials for utilizing the near-infrared light to irradiate Cu2O-based photocatalysts.
引用
收藏
页码：89 / 93
页数：5
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