TY - JOUR
T1 - NaYF4:Er,Yb/Bi2MoO6 core/shell nanocomposite
T2 - A highly efficient visible-light-driven photocatalyst utilizing upconversion
AU - Sun, Yuanyuan
AU - Wang, Wenzhong
AU - Sun, Songmei
AU - Zhang, Ling
N1 - Funding Information:
We acknowledge the financial support from the National Natural Science Foundation of China ( 51272269, 51272303, 51102262 ) and National Basic Research Program of China ( 2010CB933503, 2013CB933203 ).
PY - 2014/4
Y1 - 2014/4
N2 - NaYF4:Er,Yb/Bi2MoO6 core/shell nanocomposite was designed and prepared for the first time based on upconversion. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy dispersive X-ray spectroscopy (EDS) and diffuse reflectance spectra (DRS). The results revealed that the as-synthesized NaYF4:Er,Yb/Bi 2MoO6 consisted of spheres with a core diameter of about 26 nm and a shell diameter of around 6 nm. The core was upconversion illuminant NaYF4:Er,Yb and the shell was Bi2MoO6 around the core, which was confirmed by EDS. The NaYF4:Er,Yb/Bi 2MoO6 exhibited higher photocatalytic activity for the photodecomposition of Rhodamine B (RhB) under the irradiation of Xe lamp and green light emitting diode (g-LED). The mechanism of the high photocatalytic activity was discussed by photoluminescence spectra (PL), which is mainly attributed to upconversion of NaYF4:Er,Yb in the NaYF 4:Er,Yb/Bi2MoO6 nanocomposite and the core-shell structure.
AB - NaYF4:Er,Yb/Bi2MoO6 core/shell nanocomposite was designed and prepared for the first time based on upconversion. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy dispersive X-ray spectroscopy (EDS) and diffuse reflectance spectra (DRS). The results revealed that the as-synthesized NaYF4:Er,Yb/Bi 2MoO6 consisted of spheres with a core diameter of about 26 nm and a shell diameter of around 6 nm. The core was upconversion illuminant NaYF4:Er,Yb and the shell was Bi2MoO6 around the core, which was confirmed by EDS. The NaYF4:Er,Yb/Bi 2MoO6 exhibited higher photocatalytic activity for the photodecomposition of Rhodamine B (RhB) under the irradiation of Xe lamp and green light emitting diode (g-LED). The mechanism of the high photocatalytic activity was discussed by photoluminescence spectra (PL), which is mainly attributed to upconversion of NaYF4:Er,Yb in the NaYF 4:Er,Yb/Bi2MoO6 nanocomposite and the core-shell structure.
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U2 - 10.1016/j.materresbull.2014.01.007
DO - 10.1016/j.materresbull.2014.01.007
M3 - Article
AN - SCOPUS:84893359116
SN - 0025-5408
VL - 52
SP - 50
EP - 55
JO - Materials Research Bulletin
JF - Materials Research Bulletin
ER -