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Mesoporous TiO 2 /γ-Al 2 O 3 composite granules were prepared by combining sol–gel method and oil-drop method. After calcination at 450 °C, the composite granules showed anatase and γ-Al 2 O 3 phases with the specific surface area of 240–310 m 2 /g. The phase composition and pore structure of the granules can be controlled by calcination temperature...
SiO 2 /TiO 2 core-shell particles with controlled shell thickness were prepared by a multistep coating process. The thickness of the titania coating layer was varied from 9 to 57nm depending on the number of coating steps, from 1 to 5 times. The titania coating resulted in a rough and textured surface of the core-shell particles, increasing the specific surface areas 5–25 times depending...
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