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Rapid Microwave-Assisted Synthesis and Characterization of Cellulose Fiber Containing Silver Nanoparticles in Alkaline Aqueous Solution

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Traditionally, reducing agents were required during the synthesis process of cellulose fiber containing silver nanoparticles. In this work, cellulose fiber itself was used as matrix and reducing agent to prepare cellulose fibers containing silver nanoparticles under microwave-assisted heating. Xylanse pretreatment and the incorporation of alkali were introduced as an efficient method to improve the reducing power of cellulose fibers. The effects of xylanse pretreatment and the type of alkali, including NH3┬ĚH2O, NaOH and Na2CO3 on the preparation of cellulose fiber containing silver nanoparticles, were comparatively investigated. The silver content, morphology, crystal form and surface element of treated cellulose fiber were characterized by atomic absorption spectroscopy, scanning electron microscopy, Raman spectroscopy, and X-ray diffraction and X-ray photoelectron spectroscopy. Surprisingly, the silver content increases with the incorporation of alkali. The obtained cellulose fibers containing silver nanoparticles showed excellent antibacterial activity against Escherichia Coli and Staphylococcus aureus.
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Keywords: ALKALI; ANTIBACTERIAL; CELLULOSE; SILVER NANOPARTICLES; XYLANASE PRETREATMENT

Document Type: Research Article

Publication date: August 1, 2016

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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