Extraction and characterization of nanocellulose from cattail leaves: Morphological, microstructural and thermal properties

被引：13
|
作者：
Wu, Yuyang [1 ]
Luo, Chunxu [1 ]
Wang, Tianjiao [1 ]
Yang, Yuhang [1 ]
Sun, Yuchi [1 ]
Zhang, Yang [1 ]
Cui, Liqian [1 ]
Song, Zican [1 ]
Chen, Xiaofeng [1 ]
Cao, Xinwang [1 ,2 ,3 ]
Li, Shengyu [1 ,2 ]
Cai, Guangming [1 ,2 ]
机构：
[1] Wuhan Text Univ, Coll Text Sci & Engn, Wuhan 430200, Peoples R China
[2] Wuhan Text Univ, Hubei Key Lab Biomass Fibers & Ecodyeing & Finishi, Wuhan 430200, Peoples R China
[3] Wuhan Text Univ, State Key Lab New Text Mat & Adv Proc Technol, Wuhan 430200, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2024年 / 255卷
基金：
中国国家自然科学基金;
关键词：
Nanocellulose; HPAA treatment; Acid hydrolysis; CELLULOSE NANOCRYSTALS; MICROCRYSTALLINE CELLULOSE; HIGH-YIELD; NANOFIBRILS; TEMPERATURE; HYDROLYSIS; COMPOSITE; FIBERS; OIL;
D O I：
10.1016/j.ijbiomac.2023.128123
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
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 nano-cellulose as a result of the esterification process with citric acid (CA), which endows the nanocellulose with high thermal stability (315-318(degrees)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.
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页数：9
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