Journal
BIORESOURCES
Volume 17, Issue 3, Pages 4837-4855Publisher
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
DOI: 10.15376/biores.17.3.4837-4855
Keywords
Low-temperature carbonization; Bamboo; Weight loss; Calorific value; Crystalline properties; FT-IR analysis
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The physical and chemical characteristics of bamboo culm heat-treated at low temperature (200℃ to 320℃) were analyzed to understand the carbonization mechanisms. The weight loss, pH, and calorific value of the bamboo culm increased with increasing temperature. The crystalline cellulose changed to amorphous at various temperatures. The study concluded that there were significant differences in the physical and chemical characteristics of the carbonized bamboo culm at temperatures ranging from 200℃ to 320℃.
Physical and chemical characteristics of bamboo culm heat-treated at low temperature (200 ??C to 320 ??C) were analyzed to understand their carbonization mechanisms. The physical features and chemical compositions of four Indonesian and one Korean bamboo species were examined, and they were compared with red pine and cork oak after treatment. Weight loss, pH, and calorific value increased with increasing temperature. Weight loss and calorific value of the bamboo species increased from 200 to 240 ??C, while those of the wood species increased from 240 to 280 ??C. The pH of the bamboo and wood changed from acidic to neutral at 280 and 320 ??C, respectively. The crystalline cellulose of the samples in the X-ray diffraction analysis changed to amorphous at various temperatures for each material. In Fourier transform infrared spectroscopy, all species showed a considerable change in hemicellulose peaks at 280 ??C and a substantial change in cellulose peaks at 320 ??C. In conclusion, the carbonized bamboo culm showed a considerable difference, at 200 ??C to 320 ??C, in the physical and chemical characteristics.
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