▎ 摘　　要

NOVELTY - Preparing one-dimensional porous transition metal oxide nanomaterial comprises (i) preparing silk protein solution, (ii) regulating the nanostructure of silk fibroin by adding graphene oxide or hydrazine hydrate solution into silk protein solution, (iii) adding certain amount of transition metal salt into the silk protein solution having certain nanostructure, and continue stirring until completely dissolved, (iv) pouring the above mixture into reaction vessel and reacting at certain temperature for certain period of time, (v) naturally cooling to room temperature, washing by centrifugation, and vacuum drying the product, and (vi) calcining solid powder in vacuum tube furnace at certain temperature for certain period of time, and then naturally cooling to room temperature to obtain final product. USE - The method is useful for preparing one-dimensional porous transition metal oxide nanomaterial. ADVANTAGE - The method is simple and environmentally friendly. The nanomaterial has uniform size, and uniform distribution of porous structure.