Structural and optical properties of cellulose nanocrystals isolated from the fruit shell of Camellia oleifera Abel |
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| Authors: | Jin Yao Haibo Huang Long Mao Zhihan Li Heping Zhu Yuejun Liu |
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| Affiliation: | 1.School of Packaging and Materials Engineering,Hunan University of Technology,Zhuzhou,China;2.School of Packing Design & Art,Hunan University of Technology,Zhuzhou,China;3.Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education,Qilu University of Technology,Jinan,China |
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| Abstract: | Cellulose nanocrystals (CNC) with high aspect ratio of 80 have been readily prepared from the inexpensive fruit shell of Camellia oleifera Abel (SCOA) for the first time. In this study, SOCA was consecutively subjected to alkali extraction, hydrogen peroxide bleaching and acid hydrolysis to remove non-cellulosic components and release CNC. The derived CNC possesses a needle-shaped structure that in average diameter and length of 6±2 nm and 500±100 nm, respectively. The crystallinity index of CNC increased to 72 % and the initial decomposition temperature raised to 230 oC. The obtained CNC was formed to nanopaper by vacuum filtration showing high visible light transmittance over 90 %. Thus SOCA derived CNC is of great practical potential to apply in the field of biomedicine, energy, packing, etc. Overall, this study is anticipated to offer new possibility for the CNC production from the inexpensive but abundant agricultural wastes. |
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