Preparation and Characterization of Stable Biphase TiO2 Photocatalyst with High Crystallinity, Large Surface Area, and Enhanced Photoactivity
By Guohui Tian, Honggang Fu, L. Jing, and Baifu Xin, K. Pan. 2008
303 citations recorded by the source corpus.
Stable porous TiO2 photocatalysts, with higher photocatalytic activity than Degussa P25, were synthesized via a hydrothermal process using cetyltrimethylammonium bromide as the template, followed by a posttreatment in the presence of ethylenediamine. The photocatalysts were characterized by X-ray diffraction, Raman spectroscopy, N2 adsorption−desorption, transmission electron microscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, and UV−vis diffuse reflectance spectra. The posttreatment considerably increases the thermal stability of the porous framework and inhibits the undesirable grain growth and phase transformation during calcination. The prepared TiO2 photocatalysts have large surface areas of about 205 and 117 m2/g even after calcination at 700 and 800 °C, respectively. The formation mechanism of the stable porous titania was proposed. The high crystallinity, large specific surface area, and heterojunction microstructure between anatase and brookite may be responsible for the hig...
Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/f5b03c3181574461bd83d12840b6bdd4900854bd
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In Materials Chemistry
In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- Brookite, the Least Known TiO2 Photocatalyst (2013, methodology): “Anatase-brookite composites were more efficient than P25 for the photodegradation of methyl orange [78,79], methylene blue [158], rhodamine B [159–162], phenol [79,159], salicylic acid [79], acetaldehyde [163] and propanone in air [164,165].”