过硫酸铵
傅里叶变换红外光谱
热重分析
结晶度
纤维素
材料科学
热稳定性
叶
化学工程
核化学
透射电子显微镜
化学
纳米技术
复合材料
聚合物
工程类
聚合
生物
古生物学
作者
Lukmanul Hakim Zaini,Fauzi Febrianto,Nyoman J Wistara,Marwanto Marwanto,Muhammad Iqbal Maulana,Seung Hwan Lee,Nam–Hun Kim
出处
期刊:Journal of the Korean wood science and technology
[The Korean Society of Wood Science Technology]
日期:2019-09-01
卷期号:47 (5): 597-606
被引量:14
标识
DOI:10.5658/wood.2019.47.5.597
摘要
Cellulose nanocrystals (CNCs) were successfully isolated from oil palm fronds (OPFs) using different concentrations of ammonium persulfate (APS), and their characteristics were analyzed by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), X-ray diffraction (XRD) analysis, and thermogravimetric analysis (TGA). APS oxidation effectively isolated CNCs with rod-like morphology in nanometer scale. The dimensions of the CNCs decreased with increasing APS concentration. FTIR and XRD analyses revealed that all the CNCs showed crystals in the form of cellulose I without crystal transformation occurring during APS treatment. The relative crystallinity of the CNCs increased with increasing APS concentration, whereas their thermal stability decreased. An APS concentration of 2 M was found to be optimal for isolating the CNCs.
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