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Microwave synthesis of cellulose/CuO nanocomposites in ionic liquid and its thermal transformation to CuO
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
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2013 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 91, no 1, 162-168 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of this study is to develop a green strategy to synthesize the cellulose-based nanocomposites and open a new avenue to the high value-added applications of biomass. Herein, we reported a microwave-assisted ionic liquid route to the preparation of cellulose/CuO nanocomposites, which combined three major green chemistry principles: using environmentally friendly method, greener solvents, and sustainable resources. The influences of the reaction parameters including the heating time and the ratio of cellulose solution to ionic liquid on the products were discussed by X-ray powder diffraction, Fourier transform infrared spectrometry, and scanning electron microscopy. The crystallinity of CuO increased and the CuO shape changed from nanosheets to bundles and to particles with increasing heating time. The ratio of cellulose solution to ionic liquid also affected the shapes of CuO in nanocomposites. Moreover, CuO crystals were obtained by thermal treatment of the cellulose/CuO nanocomposites at 800 degrees C for 3 h in air.

Place, publisher, year, edition, pages
2013. Vol. 91, no 1, 162-168 p.
Keyword [en]
Microwave, Ionic liquid, Cellulose, CuO, Nanocomposites
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-187002DOI: 10.1016/j.carbpol.2012.08.025ISI: 000310253800021OAI: oai:DiVA.org:uu-187002DiVA: diva2:573759
Available from: 2012-12-03 Created: 2012-12-03 Last updated: 2012-12-03Bibliographically approved

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Zhu, Jie-Fang
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