Premium
Preparation of Mesoporous ZnO/Zn(OH) 2 Spheres and Their Replication to High Surface TiO 2 Materials
Author(s) -
Hwang YongKyung,
Kwon TaeHwan,
Park Sung Soo,
Yoon YeoJoo,
Won Yong Sun,
Huh Seong
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000742
Subject(s) - mesoporous material , amorphous solid , methyl orange , chemistry , photocatalysis , chemical engineering , nanocomposite , specific surface area , nanotechnology , nuclear chemistry , materials science , crystallography , catalysis , organic chemistry , engineering
Crystalline mesoporous ZnO/Zn(OH) 2 nanocomposite spheres were prepared by a simple method and subsequently used as a hard template for the preparation of amorphous mesoporous TiO 2 , which showed a very large surface area, 525 m 2 g –1 . The hydrolytically unstable nature of the ZnO/Zn(OH) 2 spheres made the etching process simple and efficient. Zn x Ti y O x +2 y material was also obtained from different etching processes. The large‐surface amorphous TiO 2 was crystallized above 350 °C, and the surface area decreased to 202 m 2 g –1 . The crystalline mesoporous TiO 2 exhibited a good photocatalytic activity in the decomposition of methyl orange under UV irradiation.