1. Extraction and characterization of nanocellulose from cattail leaves: Morphological, microstructural and thermal properties.
- Author
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Wu, Yuyang, Luo, Chunxu, Wang, Tianjiao, Yang, Yuhang, Sun, Yuchi, Zhang, Yang, Cui, Liqian, Song, Zican, Chen, Xiaofeng, Cao, Xinwang, Li, Shengyu, and Cai, Guangming
- Subjects
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THERMAL properties , *CELLULOSE acetate , *INORGANIC acids , *TYPHA , *CITRIC acid , *LIGHT transmission , *CARBOXYL group , *CELLULOSE - Abstract
Hydrogen peroxide combined with acid treatment demonstrates its respective characteristics for the separation of lignocellulosic biomass. Herein, holocellulose was extracted from Cattail leaves (CL) by a two-step treatment with alkali and hydrogen peroxide-acetic acid (HPAA). Then carboxylated nanocellulose was hydrolyzed with a mixed organic/inorganic acid. The chemical composition of the holocellulose and the physicochemical properties of the separated carboxylated nanocellulose were comparable. Carboxyl groups were introduced on the nanocellulose as a result of the esterification process with citric acid (CA), which endows the nanocellulose with high thermal stability (315–318 °C) and good light transmission (>80 %). Furthermore, morphological analyses revealed that nanocellulose had a spider-web-like structure with diameter between 5 and 20 nm. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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