▎ 摘　　要

NOVELTY - The utility model claims a carbon material for absorbing mercury ion in water, comprising a filter net film, active carbon filter screen, graphene filter screen, placing cavity, graphene nanotube and active carbon adsorbent; wherein the inner wall surface of the filter screen film is connected with the outer surface of the active carbon filter screen; the surface of the inner wall of the active carbon filter screen is connected with the outer surface of the graphene filter screen; the inner cavity of the graphene filter screen is provided with the placing cavity, the placing cavity is fixedly connected with with the graphene nanotube, the graphene nano-tube inner cavity fixedly connected with the active carbon adsorbent. The carbon material for absorbing mercury ion in water body is novel in design and simple in structure, under the action of the filter net film, which is convenient for separating the impurity and mercury ion in the water, it is convenient to improve the mercury ion adsorption effect in the water, under the action of the active carbon filter screen, it is convenient to improve the adsorption and purification effect of the water body through the active carbon filter screen, and it improves the water quality.