A simple solution calcination route to porous MgO nanoplates

被引:37
作者
Niu, Haixia
Yang, Qing [1 ]
Tang, Kaibin
Xie, Yi
机构
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
[3] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
MgO; porous nanoplates; solution calcination; PL (photoluminescence) spectrum; thermogravimetric (TG) analysis;
D O I
10.1016/j.micromeso.2006.07.013
中图分类号
O69 [应用化学];
学科分类号
081704 [应用化学];
摘要
Porous MgO nanoplates have been successfully synthesized using a single-step Mg(NO3)(2) solution calcination route without the assistance of any other additions. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) explorations indicated that the sizes of these nanoplates were ranging from 100 to 300 nm and the pores in them had diameters of about 2-50 nm. Nitrogen adsorption measurements for the prepared porous MgO nanoplates showed that the products had a BET (Brunauer-Emmett-Teller) surface area of 190 m(2) g(-1). PL (photoluminescence) spectrum of the products exhibited a visible light emission. Based on these investigations, the products were expected to find wide applications in biologic, catalytic and optoelectronic fields. Thermogravimetric (TG) analysis provided insight into the decomposition process of the Mg(NO3)(2) solution precursor. A possible growth mechanism of the products was also explained. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:428 / 433
页数:6
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