Abstract
We report the synthesis of a novel three-dimensional titanate–graphene oxide (TiGO) composite gel with controllable morphology through a facile one-pot solvothermal approach. This technique directly utilizes tetra-butyl titanate as a titanium source and acetic acid (HAc) as a stabilizer and cross-linking agent. Gel formation at the macro level and morphological evolution of flower-like networks into nanofibers at the micro level were controlled by regulating the amounts of graphene oxide (GO) and HAc added to the reaction system. TiGO composite is composed of nanofiber bundles and its photocatalytic activity was evaluated by photocatalytic decolorization of methyl orange aqueous solution under UV irradiation. The improved photocatalytic performance was attributed mainly to synergistic effects of titanate and GO.
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