| abstract |
The invention discloses the preparation and application of a reduced hydroxylated graphene composite semiconductor catalyst, including preparing the reduced hydroxylated graphene composite semiconductor catalyst by using the hydroxylated graphene as a carrier. The method adopts a novel and universal carrier material-hydroxylated graphene, adds non-toxic and cheap materials as precursors, and prepares the reduced hydroxylated graphene composite semiconductor catalyst by a simple one-step hydrothermal method. Compared with the traditional composite semiconductor catalyst prepared by reducing graphene oxide, the catalytic activity of our prepared reduced hydroxylated graphene composite semiconductor catalyst has been significantly improved. The nanocatalyst produced by the hydrothermal method has a small particle size and can be stably dispersed on the surface of the reduced hydroxylated graphene, and has high photocatalytic performance. At the same time, the hydroxylated graphene after reduction has good integrity and good electron transport properties. Therefore, as a carrier material for the rapid transfer of photogenerated electrons, it can effectively reduce the recombination rate of photogenerated electrons and holes in semiconductor materials, thereby improving the photocatalytic efficiency. |