Surface modification of cellulosic fibres for multi-purpose TiO2 based nanocomposites |
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| Authors: | Gil Goncalves Paula A.A.P. Marques Ricardo J.B. Pinto Tito Trindade Carlos Pascoal Neto |
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| Affiliation: | 1. School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China;2. Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;3. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;4. College of Physics, Jilin Normal University, Siping 136000, China |
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| Abstract: | Vegetable cellulose fibres have been surface modified using the hydrolysis of tetraethoxysilane (TEOS), octyltrimethoxysilane (OTMS) or phenyltrimethoxysilane (PTMS), followed by the layer-by-layer deposition of previously synthesized TiO2 nanoparticles. Raman, FTIR and 29Si Solid State NMR spectroscopies, and SEM were used to characterize the resulting nanocomposites. Water contact angle measurements were performed and the results indicate a quite distinct behaviour depending on the employed surface modification procedure. We anticipate that some of the cellulose-based composite materials have potential to be used in self-cleaning surfaces and reinforcing agents in polymer matrices, namely due to their hydrophobic surface and photostability when exposed to solar radiation. |
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