Ultrafine gahnite (ZnAl(2)O(4)) nanocrystals: Hydrothermal synthesis and photoluminescent properties

作者：Chen Xiang Ying^*; Ma Chao; Zhang Zhongjie; Wang Bai Nian

来源：Materials Science and Engineering B-Solid State Materials for Advanced Technology, 2008, 151(3): 224-230.

DOI：10.1016/j.mseb.2008.09.023

• Gahnite
• Nanomaterials
• Hydrothermal synthesis
• Photoluminescence

We demonstrate a facile but efficient hydrothermal method for the preparation of ultrafine gahnite (ZnAl(2)O(4)) 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 ZnAl(2)O(4) sample, whereas the reaction time has minor influence. Significantly, we successfully prepared ZnAl(2)O(4) sample at 180 degrees C, using urea as the basic source, which is the lowest reaction temperature ever reported for the preparation of ZnAl(2)O(4). In addition, the ZnAl(2)O(4) samples prepared under various conditions exhibit strong emission at room temperature.

• 出版日期2008-7-25
• 单位安徽大学; 合肥工业大学