Solvothermal synthesis and characterization of crystalline CaWO4 nanoparticles

被引：78

作者：

Chen, SJ

Li, J

Chen, XT

Hong, JM

Xue, ZL

You, XZ ^{[1
]}

机构：

[1] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Inst Coordinat Chem, Nanjing 210093, Peoples R China

[3] Nanjing Univ, Analyt Ctr, Nanjing 210093, Jiangsu, Peoples R China

[4] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

来源：

JOURNAL OF CRYSTAL GROWTH | 2003年 / 253卷 / 1-4期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

characterization; growth from solutions; tungstates;

D O I：

10.1016/S0022-0248(03)01089-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A solvothermal pathway has been applied to synthesize nanocrystalline CaWO4 in the presence of organic additives such as ethylene glycol, polyethylene glycol 200 (PEG-200) and polyethylene glycol 2000 (PEG-2000) at the different reactions. All products have been characterized by X-ray diffraction and transmission election microscopy. Crystalline nanorods of CaWO4 were produced in the presence of PEG-200 at 180degreesC and pH 9 for 14 h. However, spherical nanoparticles of CaWO4 were produced in the presence of ethylene glycol at 60-180degreesC or PEG-2000 at 180degreesC for 14 h. The luminescence properties of these nano-sized CaWO4 were studied. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：361 / 365

页数：5

共 17 条

[1] ULTRAVIOLET EMISSION FROM ABO4-TYPE NIOBATES, TANTALATES AND TUNGSTATES [J].