Novel synthesis of high-surface-area ordered mesoporous TiO2 with anatase framework for photocatalytic applications

作者：Kao, Li Heng; Hsu, Tzu Chien^*; Cheng, Kuo Kuang

来源：Journal of Colloid and Interface Science, 2010, 341(2): 359-365.

DOI：10.1016/j.jcis.2009.09.058

• Ordered mesoporous TiO2
• Anatase framework
• Cetyltrimethylammonium bromide
• Peroxytitanates
• Photocatalytic activity

Ordered mesoporous TiO2 materials with an anatase frameworks have been synthesized by using a cationic surfactant cetyltrimethylammonium bromide (C(16)TMABr) as a structure-directing agent and soluble peroxytitanates as Ti precursor through a self-assembly between the positive charged surfactant S and the negatively charged inorganic framework I- (S I- type). The low-angle X-ray diffraction (XRD) pattern of the as-prepared mesoporous TiO2 Materials indicates a hexagonal mesostructure. XRD and transmission electron microscopy results and nitrogen adsorption-desorption isotherms measurements indicate that the calcined mesoporous TiO2 possesses an anatase crystalline framework having a maximum pore size of 6.9 nm and a maximum Brunauer-Emmett-Teller specific surface area of 284 m(2) g(-1). This ordered mesoporous anatase TiO2 also demonstrates a high photocatalytic activity for degradation of methylene blue under ultraviolet irradiation.

• 出版日期2010-1-15
• 单位中山大学