▎ 摘　　要

NOVELTY - Preparing ultra-thin two-dimensional nickel phosphide nanosheet material involves using solvothermal method, and dispersing synthesized ultra-thin nickel hydroxide precursor on functionalized single-layer graphene by electrostatic self-assembly method, and finally synthesizing ultra-thin two-dimensional nickel phosphide nanomaterial by using gas-solidphase phosphoridation. USE - Method for preparing ultra-thin two-dimensional nickel phosphide nanosheet material in eosin-sensitized photolysis hydrogen production (claimed). ADVANTAGE - The method enables to prepare ultra-thin two-dimensional nickel phosphide nanosheet material which has important practical application value and beneficial for sustainable development of environment and energy.