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KMID : 0380020050200010050
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Korean Journal of Biotechnology and Bioengineering
2005 Volume.20 No. 1 p.50 ~ p.54
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Preparation of Carbon Nanomaterial from the Microbial Cellulose
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Kim Bong-Gyun
Song Jae-Kyung
Ryu Kwang-Kyung
Lee Hee-Chan
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Abstract
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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 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.
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KEYWORD
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Microbial cellulose, Carbon nanomaterial, carbonization, heat treatment
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