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Gongyi Pengxing water purification materials Co., Ltd. is a professional manufacturer of activated carbon, with more than 20 years of production history, advanced production technology and perfect detection means, strong technical force and scientific management. Our main products are Pengxing Activated carbon : activated carbon filter media, columnar activated carbon Coconut shell activated carbon Fruit shell Activated carbon , gold only Activated carbon , powdery Activated carbon And quartz sand, anthracite and other filter materials!  

What is the relationship between the pore structure of activated carbon and its application?

What is the relationship between the pore structure of activated carbon and its application?

Release time: 2019 / 2 / 21 9:02:34 Views: 1560

What is the relationship between the pore structure of activated carbon and its application?

Activated carbon is often used to adsorb molecules, and its applicability is determined by its adsorption, which is related to the pore size distribution of various carbon types. Taking peat based, lignite based and coconut shell based powdered activated carbons activated by steam as examples

Peat based activated carbon has micropores and mesopores, which can be used in a variety of applications;

There are many mesopores in lignite matrix, which not only has the range of 1 ~ 4 nm in diameter, but also has large mesopores, which provides excellent accessibility;

Coconut shell based carbon is mainly microporous, which is only suitable for the removal of low molecular weight. If there are large molecules, it is easy to block the entry of micropores and seriously reduce the practical performance;

Chemical activated activated carbon is very porous, mostly in the range of micropore and mesopore. However, compared with steam activated activated activated carbon and chemical activated activated carbon, the pore surface is less hydrophobic and more negative charge. As a result, peat based carbon with high activity and chemical activated carbon with high pore volume have similar properties.

Then take extruded and broken granular activated carbon as examples

(1) peat based extruded activated carbon can be made into varieties with different pore size distribution. Micropores are mainly used for gold recovery in gas phase applications. The products with both micropores and mesopores are mostly used in liquid phase applications, such as adsorbing impurities of small and large molecules in water purification.

(2) coal based and microporous. For example, the broken peat based carbon has various kinds of pore size distribution, which can provide a variety of applications.

(3) granular activated carbon based on lignite or coconut shell has the same micropore and mesopore structure as powdered carbon.

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