Preparation, Surface and Pore Structure of High Surface Area Activated Carbon Fibers from Bamboo by Steam Activation

Materials

Xiaojun Ma¹  Hongmei Yang²  Lili Yu²  Yin Chen² 

[1] Department of Wood Science and Technology, Tianjin University of Science & Technology, Tianjin 300222, China;

关键词: activated carbon fibers;    bamboo;    pore size distribution;    adsorption;    X-ray diffraction;   

DOI  :  10.3390/ma7064431

来源: mdpi

【 摘 要 】

High surface area activated carbon fibers (ACF) have been prepared from bamboo by steam activation after liquefaction and curing. The influences of activation temperature on the microstructure, surface area and porosity were investigated. The results showed that ACF from bamboo at 850 °C have the maximum iodine and methylene blue adsorption values. Aside from the graphitic carbon, phenolic and carbonyl groups were the predominant functions on the surface of activated carbon fiber from bamboo. The prepared ACF from bamboo were found to be mainly type I of isotherm, but the mesoporosity presented an increasing trend after 700 °C. The surface area and micropore volume of samples, which were determined by application of the Brunauer-Emmett-Teller (BET) and t-plot methods, were as high as 2024 m²/g and 0.569 cm³/g, respectively. It was also found that the higher activation temperature produced the more ordered microcrystalline structure of ACF from bamboo.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.