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Near-infrared light-induced photocatalysis of NaYF4:Yb, Tm@Cu2O core-shell nanocomposites
被引:16
|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:
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.
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页码:89 / 93
页数:5
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