Abstract
The structural changes of birch and pinewood under the influence of prolonged exposure to water were studied. It has been shown that prolonged aqueous treatment of birch increases the degree of crystallinity of cellulose. On the contrary, similar treatment of pinewood leads to its decrease. The specific role of hydroxyl groups of cellulose in the interaction of wood with water has been revealed. It has been noted that the O/H ratio for wood correlates to the hydrophilicity and crystallinity of cellulose. The possibility of producing porous products from different species of wood after prolonged soaking in water has been shown. The carbonization of the samples up to 800 °C leads to significant growth of the specific surface area of carbon product from 10–20 to 200–400 m2/g. It is assumed that a soft change of wood structure under the influence of water leads to the formation of weakly bound low molecular weight fragments, which are converted into volatile products for carbonization, and the formation of porous carbon product.
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References
Berthold J, Rinaudo M, Salmen L (1996) Association of water to polar groups-estimations by an adsorption model for ligno-cellulosic materials. Colloid Surf A Physiochem Eng Asp 112:29–117
Chudinov BS (1984) Water in the wood. Science of Sib. Branch, Novosibirsk
Cox J, McDonald PJ, Gardiner BA (2010) A study of water exchange in wood by means of 2D NMR relaxation correlation and exchange. Holzforschung 64:259–266
Engelund ET, Thygesen LG, Svensson S, Callum HAS (2013) A critical discussion of the physics of wood–water interactions. Wood Sci Technol 47:141–161
Khazraji AC, Robert S (2013) Self-assembly and intermolecular forces when cellulose and water interact using molecular modeling. J Nanomater 2013:1–12
Klasson TK, Uchimiya M, Lima IM (2014) Uncovering surface area and micropores in almond shell biochars by rainwater wash. Chemosphere 111:129–134
Kremer R, Tabb D (1990) The beneficially interactive support medium for diagnostic test development. Am Lab 22:43–136
Lionetto F, Del Sole R, Cannoletta D, Vasapollo G, Maffezzoli A (2012) Monitoring wood degradation during weathering by cellulose crystallinity. Materials 5:1910–1922
Marsh H, Rodriguez-Reinoso F (2006) Activated carbon. Elsevier, London
Mohan D, Sarswat A, Ok YS, JrCU Pittman (2014) Organic and inorganic contaminants removal from water with biochar, a renewable, low cost and sustainable adsorbent—a critical review. Bioresour Technol 160:191–202
Mori S, Itoh A, Nanami S, Tan S, Chong L, Yamakura T (2013) Effect of wood density and water permeability on wood decomposition rates of 32 Bornean rainforest trees. J Plant Ecol Adv Access 27:1–8
O’Sullivan AC (1997) Cellulose: the structure slowly unravels. Cellulose 4:173–207
Prokkola H, Kuokkanen M, Kuokkanen T, Lassi U (2014) Chemical study of wood chip drying: biodegradation of organic pollutants in condensate waters from the drying process. Bioresources 9:3761–3778
Segal L, Creely JJ, Martin AE Jr, Conrad CM (1959) An empirical method for estimating the degree of crystallinity of native cellulose using X-ray diffractometer. Tex Res J 29:786–794
Simpson W (1980) Sorption theories applied to wood. Wood Fiber 12:183–195
Skaar C (1988) Wood–water relations. Springer, Berlin
Socrates S (2004) Infrared and Raman characteristic group frequencies: tables and charts. Wiley, New York
Swarnalatha S, Kumar AG, Sekaran G (2009) Electron rich porous carbon/silica matrix from rice husk and its characterization. J Porous Mater 16:239–245
Temiz A, Terziev N, Jacobsen B, Eikenes M (2006) Weathering, water absorption and durability of silicon, acetylated and heat-treated wood. J Appl Polym Sci 102:4506–4513
Terinte N, Ibbett R, Schuster KC (2011) Overview on native cellulose and microcrystalline cellulose I structure studied by X-ray diffraction (WAXD): comparison between measurement techniques. Lenzinger Berichte 89:118–131
Tsyganova SI (2013) Thermal treatment of sawdust and coal-tar pitch mixture to porous carbon materials by chemical activation. Wood Sci Technol 47:77–82
Tsyganova SI, Korol’kova IV, Chesnokov NV, Kuznetsov BN (2011) Formation of the porous structure of carbon materials during carbonization of microcrystalline cellulose modified by phosphoric acid and potassium hydroxide. Russ J Bioorg Chem 37:809–813
Tsyganova S, Patrushev V, Zhizhaev A (2015) Gold deposition on magnetic porous composites synthesized from modified wood sawdust at different temperatures. Wood Sci Technol 49:869–878
Vihrov VE (1959) Diagnostic features of the most important of forest household and forest industrial species in USSR. USSR Academy of Sciences, Moskow
Yang T, Ma E (2015) Dynamic sorption and hygroexpansion of wood subjected to cyclic relative humidity changes. II. Effect of temperature. Bioresources 10:1675–1685
Zhang S, Dong Q, Zhang L, Xiong Y, Liu X, Zhu S (2015) Effects of water washing and torrefaction pretreatments on rice husk pyrolysis by microwave heating. Bioresour Technol 193:442–448
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The authors are grateful for the help in the researches to Krasnoyarsk regional center of collective use of the Siberian Branch of Russian Academic Science.
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Tsyganova, S., Mazurova, E., Bondarenko, G. et al. Influence of prolonged exposure of wood to water on wood structure and biochar properties. Wood Sci Technol 50, 963–972 (2016). https://doi.org/10.1007/s00226-016-0831-3
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DOI: https://doi.org/10.1007/s00226-016-0831-3