Fluorescence Studies of Eu Ions Adsorption on Pseudo-Boehmite Colloidal Particle Surface

被引：0

作者：

Meng Yan-shuang ^{[2
,3
]}

Wang Da-jian ^{[1
]}

Wu Jun ^{[2
,3
]}

Liu Hui-ji ^{[2
,3
]}

Ju Shao-hua ^{[2
,3
]}

机构：

[1] Tianjin Univ Technol, Mat Phys Inst, Tianjin 300191, Peoples R China

[2] Natl Nickel & Cobalt Adv Mat Engn Res Ctr, Lanzhou 730101, Peoples R China

[3] Jinchuan Nickel Cobalt Res & Engn Inst, Lanzhou 730101, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2009年 / 29卷 / 01期

关键词：

Pseudo-boehmite sol; Eu ions; Adsorption; Fluorescence; OXIDE;

D O I：

10.3964/j.issn.1000-0593(2009)01-0180-04

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Stable pseudo-boehmite sol was obtained by adding HNO3 as peptizing agent and adjusting pH to be 2.0. TEM result shows that the AIOOH colloidal particle size is about 60 nm. Field emission transmission electron microscope (FETEM) result shows that pseudo-boehmite colloidal particle is composed of 8nm scaled AIOOH nanocrystals. The interaction of Eu3+ ions and colloidal AIOOH nanoparticle was investigated. The adsorption of Eu3+ ions on the surface of AIOOH nanocrystal was attributed to the chemical adsorption caused by electrostatic attraction. The photoluminescence characters of Eu3+ in AIOOH/Eu(NO3)(3) composite sot system were investigated. The 529 nm emission intensity of Eu3+, I-512, decreased with the increase in the molar ratio of AIOOH and Eu3+, R-Boe/Re. The adsorption ratio (denoted R) Find the adsorption density (denoted D) of Eu3+ ions on AIOOH colloidal particle surface was calculated from I-592. The results show that the values of R and D increase with increasing R-Boe/Re.

引用

页码：180 / 183

页数：4

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