US 12,678,742 B2 · All-carbon film based on activated carbon and preparation method and use thereof

Abstract

The present disclosure provides an activated carbon-based all-carbon membrane (ACM), which is formed by using activated carbon as a base material and graphene as a crosslinking agent for connection, and can stably exist independent of a substrate. The membrane surface pore structure can be adjusted by the addition proportion of graphene, and the membrane surface pore size can be adjusted from micron-scale to nano-scale. The preparation method of ACM comprises uniformly mixing and then filtering an activated carbon dispersion and a graphene dispersion, then the graphene and the activated carbon are assembled on the membrane filter substrate. The membrane can be used in the fields such as water and air purification, chemical catalysis, and energy reservation.

Claims14

Dependent claims

An activated carbon-based all-carbon membrane (ACM) for water purification for Chlorella E. coli, nano silica, and nanosilver, comprising:

a plurality of activated carbon particle as basic material, and a graphene as crosslinking agent;
the graphene is reduced graphene oxide that forms a plurality of discrete graphene oxide sheets to separately link one of the activated carbon particles to another of the activated carbon particles;
wherein the mass ratio of the graphene to the activated carbon is 7%;
the thickness of the ACM is capable of being regulated by an addition amount of the activated carbon;
a pore structure of the ACK has a water flux of 45.36 L/m2/h/bar;
an air contact angle of the ACM is 25.4°;
and
a surface pore size of the ACM is 24 nm-70 nm.

5 more elements

Dependencies are inferred from the claim text.

All-carbon film based on activated carbon and preparation method and use thereof

Life of this patent

All-carbon film based on activated carbon and preparation method and use thereof

Life of this patent

Abstract

Claims14