As an adsorption material with excellent properties,activated carbon fiber has the advantages of large specific surface area,good adsorption performance,stable chemical properties,and no secondary pollution.The principle and characteristics of preparing activated carbon fiber from chemical fiber or natural fiber were reviewed.The principle,advantages and disadvantages of the surface modification method of activated carbon fiber after preparation were mainly introduced.The relationship of activated carbon fiber between the surface structure characteristics and its adsorption properties was described in detail.At the same time,the research direction of surface modification of activated carbon fiber was prospected.
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