Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
Carbohydr Polym. 2014 Jan;99:166-72. doi: 10.1016/j.carbpol.2013.08.023. Epub 2013 Aug 23.
This study aims to investigate the fabrication and property of cellulose/Ag/AgCl hybrids. In this article, preparation of cellulose/Ag/AgCl hybrids was reported using the cellulose solution, AgNO₃, AlCl₃·6H₂O with ultrasound agitation method. The cellulose solution was synthesized by the dissolution of the microcrystalline cellulose in NaOH/urea aqueous solution. Influences of the experimental parameters of ultrasound treatment time and ultrasonic intermittent on the hybrids were investigated. The phase, microstructure, thermal stability, and morphology of the hybrids were characterized by X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) spectrometry, thermogravimetric analysis (TGA), differential thermal analysis (DTA), and scanning electron microscopy (SEM). Results showed the successful synthesis of cellulose/Ag/AgCl hybrids with good thermal stability. Moreover, the hybrids displayed desirable antimicrobial activities. Compared with other conventional methods, the rapid, green, and environmentally friendly ultrasound agitation method opens a new window to the high value-added applications of biomass.
本研究旨在探讨纤维素/Ag/AgCl 杂化材料的制备和性能。本文采用纤维素溶液、AgNO₃、AlCl₃·6H₂O 为原料，通过超声搅拌法制备纤维素/Ag/AgCl 杂化材料。纤维素溶液是通过将微晶纤维素溶解在 NaOH/尿素水溶液中制得的。考察了超声处理时间和超声间歇实验参数对杂化材料的影响。采用 X 射线粉末衍射（XRD）、傅里叶变换红外（FTIR）光谱、热重分析（TGA）、差热分析（DTA）和扫描电子显微镜（SEM）对杂化材料的物相、微观结构、热稳定性和形貌进行了表征。结果表明，成功合成了具有良好热稳定性的纤维素/Ag/AgCl 杂化材料。此外，杂化材料表现出良好的抗菌活性。与其他传统方法相比，快速、绿色、环保的超声搅拌法为生物质的高附加值应用开辟了新的途径。
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