PHOTOLUMINESCENCE, MAGNETIC PROPERTIES AND PHOTOCATALYTIC ACTIVITY OF Gd3+ DOPED ZnO NANOPARTICLES

被引：0
|
作者：
Oprea, O. [1 ]
Vasile, O. R. [1 ]
Voicu, G. [1 ]
Craciun, L. [1 ]
Andronescu, E. [1 ]
机构：
[1] Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Bucharest, Romania
来源：
DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES | 2012年 / 7卷 / 04期
关键词：
Gd-doped zinc oxide; Ferromagnetism; Nanomaterials; photocatalysis; THIN-FILMS; OPTICAL-PROPERTIES; FERROMAGNETISM; ULTRAVIOLET; DEPOSITION; NANOWIRES; ALUMINA; GROWTH; LAYER; FTIR;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanocrystalline ZnO particles doped with Gd(III) ions were prepared by a simple sol-gel method from methanolic solution of zinc acetate dihydrate, aqueous solution of Gd(NO3)(3)center dot 9H(2)O, and starch. By calcination of the xerogel at 400 degrees C we obtained nanopowders of ZnO doped with Gd(III) ions. The dopant percentage was increased up to 5%. Optical investigation shows that the Gd doping in ZnO lattice leads to a decrease in the near band edge position due to the introduction of new unoccupied states by Gd 4f electrons. The blue-green luminescence is enhanced by increasing the Gd(III) percentage. In addition, the photocatalytic activity was investigated against methylene blue.
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收藏
页码：1757 / 1766
页数：10
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