The invention discloses a
micelle modified nanometer zero-valent iron particle and a preparation method and application thereof and belongs to the technical field of preparation and modification of nanometer materials. The modified nanometer zero-valent iron particle comprises nanometer zero-valent iron and environment-friendly
micelle poloxamer (comprising
poloxamer F68,
poloxamer F108 and poloxamer F127; and the poloxamer
micelle wraps the surface of the nanometer zero-valent iron. According to the method, in a poloxamer
aqueous solution, a solution of a strong
reducing agent KBH4, a NaBH4 solution or a
green tea solution is utilized to reduce Fe2+ so that Fe0 can be obtained. According to the micelle modified nanometer zero-valent iron particle and the preparation method and the application of the micelle modified nanometer zero-valent iron particle, the nanometer zero-valent iron is modified through the poloxamer, the micelle is formed through self-
assembly of the poloxamer in the
aqueous solution, stabilization of the nanometer materials is achieved, the prepared
nanometer particle is good in dispersing performance and high in reactivity, and the defects that the
nanometer particle is prone to clustering in water and prone to oxidation in air are overcome. The
pollutant removing capacity of the micelle modified nanometer zero-valent iron particle is far higher than that of a non-modified nanometer zero-valent iron particle, the micelle modified nanometer zero-valent iron particle is friendly to the environment, secondary
pollution cannot be generated, equipment needed for preparation is simple, the process is simple and convenient, and the micelle modified nanometer zero-valent iron particle can be widely used for treatment of environmental
pollution and the environment restoration field.