Synthesis, Characterization And Application Of The Mesoporous Carbon

Ordered mesoporous carbon materials have been used in wide fields like adsorption, catalysis and energy storage.This wide-spread use of mesoporous carbons results from their remarkable properties,such as high specific surface areas,large pore volumes,chemical inertness,good hydrothermal and mechanical stability.In this paper,the wormlike mesoporous carbon materials were prepared using mesoporous silica HMS as the hard templates and water-soluble phenolic resin as the carbon source.The obtained mesoporous carbons prepared by HMS with different pore size were characterized by powder XRD,TEM and N₂ physical adsorption.It has been shown that using HMS with larger pore size,which is synthesized using alkane as swelling agent,the mesoporous carbon with uniform pore size and large BET surface area can be obtained.The adsorptive performance of obtained mesoporous carbons were studied.It has been shown that thus-obtained mesoporous carbons exhibit higher adsorptive ability to remove bulky sulfides(4,6-DMDBT and DBT) than small molecules sulfides(BT).Moreover,the mesoporous carbons obtained by templates with bigger pore size,exhibit better adsorptive ability,and the adsorption balance is reached in a short time.In this paper,the carbons were also prepared using DDA as the soft template and water-soluble phenolic resin as the carbon source by the solvent evaporation induced self-assembly(EISA) method.The effects of template quantity,calcining temperatures,heating time and temperatures on carbons were investigated.The obtained carbons were characterized by powder XRD and N₂ physical adsorption.The results show that the carbons do not have mesopores.