▎ 摘　　要

NOVELTY - Nano adsorption material i.e. nano-zinc oxide/titanium oxide/graphene/magnesium-aluminum dihydroxide composite material is claimed, where element molar ratio of zinc, titanium, carbon, magnesium to aluminum is 0.18-0.25:0.12-0.17:0.17-0.74:0.37-0.82:0.17-0.44. USE - Used as nano adsorption material. ADVANTAGE - The material: has high thermal stability, specific surface area, large total pore volume, simple preparation method, mild reaction condition and low energy consumption; and is environmentally friendly and suitable for industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing nano adsorption material comprising (a) adding zinc oxide, titanium oxide and titanium dioxide into graphene oxide solution under nitrogen atmosphere, adjusting pH to 9-11, and then adding hydrazine hydrate solution is reduce, and (b) mixing zinc oxide/titanium oxide/graphene composite suspension with aqueous solution of magnesium chloride hexahydrate, aluminum chloride hexahydrate and hexamethylenetetramine, then adding into a hydrothermal kettle and carrying out hydrothermal reaction to obtain final product.