Effect of pyrolysis temperature on properties of ACF/CNT composites

Autor: Liping Wang, Zhu-cheng Huang, Liao Xingsheng, Mingyu Zhang
Rok vydání: 2012
Předmět:
Zdroj: Journal of Central South University. 19:2746-2750
ISSN: 2227-5223
2095-2899
Popis: 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 °C to 850 °C and the minimum diameter of CNTs appears at 750 °C. The maximum adsorption efficiency of ACF/CNT composites for rhodamine B is obtained at 650 °C. ACF/CNT composites are expected to be useful in adsorption field.
Databáze: OpenAIRE