Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 111, Issue 32, Pages 11849-11853Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp072070z
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Using TiCl4 and Ti(OBu)(4) as the precursors and Pluronic P123 as the template, mesoporous titanium dioxide (TiO2) is successfully prepared by the nonhydrolytic evaporation-induced self-assembly (EISA) method with a three-dimensional mesostructure obtained. X-ray powder diffraction patterns (XRD) show that the pore wall is composed of both anatase and rutile phases. Transmission electron micrograph observations (TEM) reveal a well-ordered open-pore mesostructure. N-2 adsorption analysis exhibits a narrow pore size distribution. Photodegradation of phenol shows that the sample has a better photoactivity than Degussa P25. Further investigations on the effect of the acid-base pair find that by changing the molar ratio of TiCl4/Ti(OBu)(4), both the pore texture and phase composition can be well-controlled. A high content of TiCl4 is considered to favor the formation of regular mesostructures and a proper weight ratio of anatase/rutile as well, which can finally affect the photocatalytic efficiency of the sample.
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