Abstract
Boric acid-induced hydrolysis for fabricating TiO2 photocatalyst for photodegradation of organic contaminants (such as phenol, methyl orange and methylene blue) and hydrogen evolution is developed. The water dehydrated from boric acid in absolute ethanol promote the slow hydrolysis of tetrabutyl titanate during the hydrothermal process so that the crystalline size of TiO2 is smaller. Boric acid not only function as hydrolytic reagent for tetrabutyl titanate, but also as support for TiO2 nanoparticles during the annealing procedure. Moderate dosage of boric acid and calcinating temperature during the synthesis of TiO2 promote the exposure of active (001) facets and large surface area, resulting to the excellent photocatalytic activity in the degradation of organic contaminants and hydrogen evolution.
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