A kind of unsupported activated carbon full carbon film and its preparation method and application

Abstract

The invention discloses an unsupported activated carbon full-carbon membrane, a preparation method and application thereof. The activated carbon full-carbon film formed by connecting graphene as a cross-linking agent can exist independently of the substrate, and has high chemical resistance and thermal stability. This multifunctional all-carbon membrane has a controllable pore structure and has super adsorption performance for pollutants. The pore size can be adjusted from micron to nanometer under the control of the amount of crosslinking agent added. According to the above properties, the multifunctional independent all-carbon membrane can achieve the effect of one-step removal of particle pollutants and small molecule pollutants, and can be used in the fields of environmental pollution water treatment, drinking water purification and air purification.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to an unsupported activated carbon full-carbon membrane, a preparation method and application thereof. Background technique [0002] Activated carbon is the most widely used adsorption material. Due to its large specific surface area and rich pore structure, it is widely used in water, gas purification, chemical catalysis, energy storage and other fields. At present, the application of activated carbon is often directly put into the polluted water body in the form of particles for adsorption, but this application often causes the loss of activated carbon, and also involves the later time-consuming and laborious solid-liquid separation process. There are also applications where activated carbon is filled in containers, or embedded in polymers for use. However, activated carbon packed columns are easily blocked by pollution during use, and the mosaic of polymers will b...

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Problems solved by technology

However, activated carbon packed columns are easily blocked by pollution during use, and the mosaic of polymers will block the pore structure of activated carbon and cover the surface structure, affecting its adsorption performance.

At the same time, filled containers or polymers that physically immobilize activated carbon are often unable to resist the erosion of chemical substances and high-temperature operation, which limits their application fields. Therefore, research and development of new types of activated carbon devices are very important for the application of activated carbon.

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