Flower-like TiO_2 Nanostructures: Synthesis, Characterization and Photocatalytic Properties

摘要

Flower-like TiO_2 materials, with their advantages of high specific surface area, large pore structure, and high photocatalytic activity, have been widely used in environmental management, air purification, and surface self-cleaning. TiO_2 nanoflowers were prepared by a hydrothermal method. Ag-doped TiO_2 nanostructures are obtained using microwave-assisted reduction. Results show that Ag are well dispersed on the surface of TiO_2, which can enhance the visible absorption. Ag/TiO_2 could also restrain the recombination of photo-generated electron–hole pairs efficiently. The results of photocatalytic water splitting showed that Ag/TiO_2 samples had better photocatalytic performance than pure TiO_2.