Ultrafine gahnite (ZnAl2O4) nanocrystals: Hydrothermal synthesis and photoluminescent properties

被引：61

作者：

Chen, Xiang Ying ^{[1
,3
]}

Ma, Chao ^{[1
]}

Zhang, Zhongjie ^{[2
]}

Wang, Bai Nian ^{[1
,3
]}

机构：

[1] Hefei Univ Technol, Sch Chem Engn, Hefei 230009, Anhui, Peoples R China

[2] Anhui Univ, Coll Chem & Chem Engn, Hefei 230039, Anhui, Peoples R China

[3] Anhui Key Lab Controllable Chem React & Mat Chem, Hefei 230009, Anhui, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2008年 / 151卷 / 03期

关键词：

Gahnite; Nanomaterials; Hydrothermal synthesis; Photoluminescence;

D O I：

10.1016/j.mseb.2008.09.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate a facile but efficient hydrothermal method for the preparation of ultrafine gahnite (ZnAl2O4) nanoparticles without post-treatment by varying the reaction parameters, including reaction temperature, reaction time and basic source. These parameters were systematically investigated in terms of XRD and TEM techniques. The experimental results revealed that the reaction temperature and basic source play the crucial roles in obtaining ZnAl2O4 sample, whereas the reaction time has minor influence. Significantly, we successfully prepared ZnAl2O4 sample at 180 degrees C, using urea as the basic source, which is the lowest reaction temperature ever reported for the preparation of ZnAl2O4. In addition, the ZnAl2O4 samples prepared under various conditions exhibit strong emission at room temperature. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：224 / 230

页数：7

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