Preparation and characterization of activated carbon fibers from liquefied wood by ZnCl2 activation

• 作 者: ZhigaoLiu;GuangjieZhao;
• 机 构: College of Materials Science and Technology,Beijing Forestry University,Tsinghua East Road 35,Haidia
• 出 处: 第六届全国生物质材料科学与技术学术研讨会
• 发表日期: 2015年期

　　In this study,activated carbon fibers(ACFs)were prepared from liquefied wood by the method of chemical activation with ZnCl2,with a particular focus on the temperature and ZnCl2:liquefied wood-based fiber(LWF)ratio on both porous texture and surface chemistry..The characterization and properties of these ACFs were investigated by and nitrogen adsorption/desorption,Fourier transform infrared(FTIR)spectroscopy and X-ray photoelectron spectroscopy(XPS).When using the 6:1 impregnation ratio,the specific surface area(SBET)of the resultant ACFs is as high as 1423 m2/g.The effect of increase in impregnation ratio on the porosity of ACFs is stronger than that of the increase in the activation temperature.However,the former had weaker impact on the surface chemistry and structure.