Effect of pyrolysis temperature on properties of ACF/CNT composites  

作　　者：王丽平 黄柱成 张明瑜 廖兴盛 

机构地区：[1]School of Minerals Processing and Bioengineering,Central South University [2]Department of Biological Engineering and Environmental Science,Changsha University [3]State Key Laboratory for Powder Metallurgy,Central South University

出　　处：《Journal of Central South University》2012年第10期2746-2750,共5页中南大学学报（英文版）

基　　金：Project(50802115) supported by the National Natural Science Foundation of China;Project(2010FJ4075) supported by the Science and Technology Plan of Hunan Province;Project(CDJJ-10010205) supported by Changsha University

摘　　要：Activated carbon fiber/carbon nanotube(ACF/CNT) composites were fabricated by chemical vapor deposition(CVD) process.The effects of pyrolysis temperature on properties of ACF/CNT composites,including BET specific surface area,mass increment rate and adsorption efficiency for rhodamine B in solution,were investigated by scanning electron microscopy.The results show that the pyrolysis temperature is a key factor affecting the qualities of ACF/CNT composites.The mass increment rate and BET specific surface area sharply decrease with the increase of pyrolysis temperatures from 550 ℃ to 850 ℃ and the minimum diameter of CNTs appears at 750 ℃.The maximum adsorption efficiency of ACF/CNT composites for rhodamine B is obtained at 650 ℃.ACF/CNT composites are expected to be useful in adsorption field.Activated carbon fiber/carbon nanotube （ACF/CNT） composites were fabricated by chemical vapor deposition （CVD） process. The effects of pyrolysis temperature on properties of ACF/CNT composites, including BET specific surface area, mass increment rate and adsorption efficiency for rhodamine B in solution, were investigated by scanning electron microscopy. The results show that the pyrolysis temperature is a key factor affecting the qualities of ACF/CNT composites. The mass increment rate and BET specific surface area sharply decrease with the increase of pyrolysis temperatures from 550 ℃ to 850 ℃ and the minimum diameter of CNTs appears at 750 ℃. The maximum adsorption efficiency of ACF/CNT composites for rhodamine B is obtained at 650 ℃, ACF/CNT composites are expected to be useful in adsorption field.

关 键 词：ACF/CNT composites pyrolysis temperature chemical vapor deposition BET specific surface area ADSORPTION 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TB33