Preparation and characterization of Y2Zr2O7 nanocrystals and their photocatalytic properties

被引：48
|
作者：
Tong, Yuping [1 ]
Xue, Panpan [1 ]
Jian, Fangfang [2 ]
Lu, Lude [1 ]
Wang, Xin [1 ]
Yang, Xujie [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Peoples R China
[2] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Shandong, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2008年 / 150卷 / 03期
关键词：
Y2Zr2O7; nanocrystals; stearic acid method; HRTEM image; catalysis; yttrium;
D O I：
10.1016/j.mseb.2008.04.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The yttrium zirconate (Y2Zr2O7) nanocrystals with cubic structure in the size range of 50 nm were prepared by stearic acid method (SAM) using zirconium nitrate and yttrium nitrate as raw materials, stearic acid as solvent and dispersant. The synthesis process was monitored by TG-DTA. The product was characterized by XRD, FT-IR, TEM, HRTEM, EDS and BET. The effect of thermal treatment temperature on crystal size and lattice distortion of the nanocrystals was studied. Y2Zr2O7 nanocrystals obtained by SAM were well dispersed with average size of 20-40 nm. The interplanar distances measured from the HRTEM image were 0.294 and 0.185 nm, respectively, coinciding with the theoretical values. Moreover, the photocatalytic properties of Y2Zr2O7 nanocrystals were measured and discussed. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：194 / 198
页数：5
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