The effect of phase structures on the near-infrared photocatalytic activity of NaYE4:Yb3+,Tm3+/ZnO nanocomposites

被引：13
作者：
Guo, Xingyuan [1 ,2 ]
Chen, Changfeng [3 ]
Yin, Shengyan [2 ]
Song, Weiye [1 ]
Shi, Feng [1 ]
Qin, Weiping [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
[2] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China
[3] Univ Maine, Lab Surface Sci & Technol, Orono, ME 04468 USA
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2015年 / 297卷
关键词：
Near-infrared light (NIR); Photocatalysis; NaYF4:Yb3+; Tm3+; ZnO; ZINC-OXIDE NANOSTRUCTURES; ZNO; DEGRADATION; PHOTOLUMINESCENCE; NANOCRYSTALS; LUMINESCENCE; PERFORMANCE; DEPENDENCE; MECHANISM; GROWTH;
D O I：
10.1016/j.jphotochem.2014.10.002
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, the effects of NaYF4:Yb3+, Tm3+ (NYT) structure on the near-infrared light (NIR) photocatalysis performance of ZnO were investigated. alpha-NYT/ZnO nanocomposites (NCs) and beta-NYT/ZnO NCs were fabricated by a high temperature decomposition reaction method. The prepared NCs were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis spectroscopy, Raman spectroscopy, and photoluminescence spectra (PL). The NIR photocatalytic activities of the synthesized alpha- and beta-NYT/ZnO NCs were studied by the degradation of Rhodamine B. The differential photocatalytic activities between of alpha- and beta-NYT/ZnO NCs are believed to be correlated to the effects of alpha- and beta-NYT on the oxygen vacancies and exposed crystal face of ZnO. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：14 / 19
页数：6
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