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Preparation of Carbon Nanomaterial from the Microbial Cellulose  

Kim Bong Gyun (Institute of Biomolecule Reconstruction, Sun Moon University)
Sohng Jae Kyung (Institute of Biomolecule Reconstruction, Sun Moon University)
Liou Kwangkyoung (Institute of Biomolecule Reconstruction, Sun Moon University)
Lee Hei Chan (Institute of Biomolecule Reconstruction, Sun Moon University)
Publication Information
KSBB Journal / v.20, no.1, 2005 , pp. 50-54 More about this Journal
Abstract
Tar is often produced during the carbonization of cellulose that limits the formation fibrous structure of the carbonized sample. This problem was reduced by applying a high temperature $(up\;to\;800{\circ}C)$ during carbonization process. Alternatively, dry cellulose was immersed in toluene and ultrasonicated prior to carbonization. In both cases, complete fibrous structures were not achieved. The formation of tar was reduced by the heat treatment of cellulose in the presence of HCI vapor before carbonization process. Such treatment before carbonization yielded mostly the fibrous structures of the carbonized sample as evident from SEM analysis. Similar results were found when the cellulose was subjected to a heat treatment in an inert condition followed by the removal of tar by the oxidation process prior to the carbonization.
Keywords
Microbial cellulose; Carbon nanomaterial; carbonization; heat treatment;
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