期刊
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 32, 期 6, 页码 1511-1517出版社
ELSEVIER
DOI: 10.1016/j.msec.2012.04.033
关键词
Cellulose; Iron oxide; Nanocomposites; Hydrothermal; Thermal stability
资金
- Fundamental Research Funds for the Central Universities [TD2011-11, HJ2010-16]
- National Natural Science Foundation of China [31070511]
- Research Fund for the Doctoral Program of Higher Education of China [20100014120010]
- China Postdoctoral Science Special Foundation [201003059]
- Major State Basic Research Development Program of China (973 Program) [2010CB732204]
- Program for New Century Excellent Talents in University
Nanocomposites of cellulose/iron oxide have been successfully prepared by hydrothermal method using cellulose solution and Fe(NO3)(3)center dot 9H(2)O at 180 degrees C. The cellulose solution was obtained by the dissolution of microcrystalline cellulose in NaOH/urea aqueous solution, which is a good system to dissolve cellulose and favors the synthesis of iron oxide without needing any template or other reagents. The phases, microstructure, and morphologies of nanocomposites were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectra (EDS). The effects of the heating time, heating temperature, cellulose concentration, and ferric nitrate concentration on the morphological behavior of products were investigated. The experimental results indicated that the cellulose concentration played an important role in both the phase and shape of iron oxide in nanocomposites. Moreover, the nanocomposites synthesized by using different cellulose concentrations displayed different thermal stabilities. (c) 2012 Elsevier B.V. All rights reserved.
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