▎ 摘　　要

NOVELTY - Preparing reduced graphene oxide layered film comprises (i) mixing sodium polystyrene sulfonate and multi-wall carbon nano-tube in distilled water according to predetermined proportion, stirring and ultrasonically dispersing the uniformly obtain liquid, centrifuging the uniform dispersion liquid, taking the lower layer black precipitate, freezing and drying to obtain one-dimensional assembly; and (ii) adding the reduced graphene oxide and one-dimensional assembly into distilled water according to predetermined proportion, stirring and ultrasonically dispersing uniformly to obtain liquid, vacuum filtering the uniform dispersion liquid, and naturally drying. USE - The method is useful for preparing reduced graphene oxide layered film used for solar photo-thermal conversion, solar interface water evaporation and evaporation induced power generation. ADVANTAGE - The method obtains film with high conductivity and high heat characteristics, improves the water transmission performance, realizes good photo-thermal performance, and is not easy to expand when exposed in water, and good long-term stability. DESCRIPTION OF DRAWING(S) - The drawing shows schematic diagram of preparation method of reduced graphene oxide layered film.