期刊
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
卷 102, 期 7, 页码 2761-2772出版社
WILEY
DOI: 10.1002/jsfa.11617
关键词
spent edible fungus substrate; dicarboxyl cellulose nanocrystal; adsorption; metal ion; amoxicillin
资金
- basic scientific research funds project of Heilongjiang Universities [2019-KYYWF-1377]
The study demonstrated the preparation of nanocellulose from secondary agricultural waste through chemical oxidation, showing promising functional applications.
BACKGROUND Spent edible fungus substrates were identified as potential sources to produce cellulose derivatives, namely purified cellulose and dicarboxyl cellulose nanocrystal (DCNC). Purified celluloses were obtained via chemical treatments and then oxidized by sequential periodate-chlorite without mechanical process. The structural properties of the DCNCs were characterized by transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and thermal gravimetric analysis (TGA). RESULTS XRD results showed that the cellulose I structure was maintained, however, the crystallinity index decreased after oxidation process. The initial pyrolysis temperature of DCNCs ranged from 242 to 344 degrees C. TEM results revealed that DCNC was rod-shaped with an average length and width of 130.88 nm and 7.3 nm, respectively. The average specific surface area (SSA) was 366.67 m(2) g(-1). The carboxyl content was around 3.485 mmol g(-1). Finally, the adsorption capacity for contaminations was 76.98, 126.22, 64.44 and 9.63 mg g(-1) for copper ion (Cu2+), lead ion (Pb2+), chromium (Cr3+) and amoxicillin (AMX), respectively. CONCLUSION This work showed a sequentially chemical oxidation for preparing nanocellulose from secondary agricultural waste with many functional applications. (c) 2021 Society of Chemical Industry.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据