Preparation and modification of activated carbon fibres by microwave heating

摘要

Thermal treatment of activated carbon fibres(ACF)has been carried out using a microwave device,instead of a conventional furnace.The results show that microwave treatment affects the porosity of the ACFs,causing a reduction in micropore volume and micropore size.More importantly,the results also show that microwave treatment is a very effective method for modifying the surface chemistry of the ACFs with the production of pyrone groups,detected by FTIR.As a result very basic carbons,with points of zero charge approximately equal to 11,are readily obtained.