標題: Ultrafast formation of ZnO mesocrystals with excellent photocatalytic activities by a facile Tris-assisted antisolvent process
作者: Dong, Ji-Yao
Lin, Wei-Hao
Hsu, Yung-Jung
Wong, David Shan-Hill
Lu, Shih-Yuan
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 2011
摘要: Ultrafast formation of ZnO mesocrystals was achieved with a facile, green, Tris-assisted, room temperature ionic liquid based antisolvent process. A deep eutectic solvent, formed by simply mixing and heating urea and choline chloride at 70 degrees C, served as the solvent for ZnO, whereas Tris-containing de-ionized water acted as the anti-solvent to trigger the ultrafast formation of ZnO mesocrystals at 70 degrees C. The product mesocrystals were mesoporous and near-single-crystalline with high specific surface areas, showing excellent photocatalytic activities toward photodegradation of methylene blue, comparable to that of a commercial photocatalyst, P-25 TiO(2), which is rarely achieved for pristine ZnO. The present approach is a general one and can be readily extended to production of mesocrystals of other functional metal oxides.
URI: http://hdl.handle.net/11536/14831
http://dx.doi.org/10.1039/c1ce05503h
ISSN: 1466-8033
DOI: 10.1039/c1ce05503h
期刊: CRYSTENGCOMM
Volume: 13
Issue: 20
起始頁: 6218
結束頁: 6222
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