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- W2369966617 abstract "Using a composite surfactants template(P123 and CTAB) as structure directing agents,ordered mesoporous TiO_2 was synthesized via supra-molecular self-assembly route from industrial TiOSO_4 solution.The hydrolysis and poly-condensation rate of aqueous TiOSO_4 solution was controlled through controlling the pH of solution,and the ordered mesoporous structure was obtained by calcinations after template removed.In high polar aqueous solution,the excluding interactions of non-polar group for CTAB was reduced by P123's insertion,and the mesoporous structure was formed as a result of self-assembly between composite surfactants and precursor of TiO_2.The ordered mesoporous TiO_2 powder was characterized by SEM,TEM,ED,XRD, and N_2 isothermal absorption and desorption methods.The results showed that ordered mesoporous TiO_2 is highly ordered and has a narrow hexagonal packed structure,with average pore diameter of 3.0?nm,surface area of 132.6?m~2/g,porosity of 36% and pore volume of 0.19 cm~3/g.The pore wall was partially crystallized with an anatase phase,crystal size was grown up to 14.22 nm after calcinations at 450?℃,basic grain size ranging from 30 to 70?nm,and owing to congregation they display larger analogous spherical particles." @default.
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- W2369966617 date "2006-01-01" @default.
- W2369966617 modified "2023-09-22" @default.
- W2369966617 title "Synthesis of Ordered Mesoporous TiO_2 from Industrial TiOSO_4 by Composite Surfactants Template Method" @default.
- W2369966617 hasPublicationYear "2006" @default.
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