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Preparation of fibrous activated carbons from wood fiber |
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| Authors: | R. Asakura M. Morita K. Maruyama H. Hatori Y. Yamada |
| Affiliation: | 1. Fukuoka Industrial Technology Center, Interior Design Research Institute, 405-3 Agemaki, Okawa, Fukuoka, 831-0031, Japan; 2. Biomacromolecular Materials Laboratory, Department of Forest and Forest Products, Graduate School of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan 3. National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki, 305-8569, Japan 4. Department of Materials Science & Engineering, Faculty of Engineering, Fukui University, 3-9-1 Bunkyo, Fukui, 910-8507, Japan |
| Abstract: | Short fibrous hollow activated carbons with a high aspect ratio were prepared by carbonization and carbon dioxide activation of softwood and hardwood fibers. The softwood activated carbon consisted mostly of micropores even though the degree of burn-off during the activation became higher. In the case of the hardwood fiber, on the other hand, meso- and macropores as well as micropores were formed and the ratio of these large pores increased with an increasing degree of burn-off. The adsorbed amount of water and toluene vapor on these fibrous activated carbons was compared with that of the commercial activated carbon fibers (ACFs). These fibrous activated carbons showed a high adsorption capacity comparable to that of the ACFs. |
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