Tripolyphosphate as precursor for REPO4:: Eu3+ (RE = Y, La, Gd) by a polymeric method

被引：32

作者：

de Sousa Filho, Paulo C. ^{[1
]}

Serra, Osvaldo A. ^{[1
]}

机构：

[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Pret, Dept Quim, Lab Terras Raras, BR-14040901 Ribeirao Preto, Brazil

来源：

JOURNAL OF FLUORESCENCE | 2008年 / 18卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

luminescence; rare earth; phosphates; europium; Pechini;

D O I：

10.1007/s10895-007-0272-3

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A modification of the Pechini method was applied to obtain luminescent rare earth orthophosphates. The developed synthetic route is based on the ability of the tripolyphosphate anion (P3O105-) to act both as a complexing agent and as an orthophosphate precursor. Heating of aqueous solutions containing RE3+, Eu3+, P3O105-, citric acid, and ethylene glycol led to polymeric resins. The ignition of these resins at different temperatures yielded luminescent orthophosphates. The produced nanosized phosphors (YPO4:Eu3+, (Y,Gd)PO4:Eu3+, and LaPO4:Eu3+) were analyzed by infrared and luminescence spectroscopies, X-ray diffractometry, and scanning electron microscopy.

引用

页码：329 / 337

页数：9

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