Support-free pure activated carbon membrane, preparation method and application thereof

Abstract

The invention discloses a support-free pure activated carbon membrane, a preparation method and application thereof. The support-free pure activated carbon membrane is formed by taking graphene as a cross-linking agent for connection, can be independent of a base to exist stably and is high in chemical corrosion resistance and thermostability. The support-free pure activated carbon membrane is provided with controllable pore structures and is high in contaminant adsorbing property, and pore size can be adjusted from micron scale to nano scale by regulation of cross-linking agent additive amount, so that the multifunctional independent pure carbon membrane further has an effect of removing particulate pollutants and micromolecular pollutants and can be applied to environmental contaminated water treatment and the fields of drinking water purification, air purification and the like.

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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