Multifunctional hybrid nanopapers based on bacterial cellulose and sol-gel synthesized titanium/vanadium oxide nanoparticles

作者：Gutierrez Junkal; Fernandes Susana C M; Mondragon Inaki; Tercjak Agnieszka^*

来源：Cellulose, 2013, 20(3): 1301-1311.

DOI：10.1007/s10570-013-9898-2

• Bacterial cellulose
• Hybrid nanopapers
• Sol-gel
• Photochromism
• Electrical properties
• Inorganic nanoparticles

The hybrid inorganic/organic nanopapers based on bacterial cellulose and different type of sol-gel synthesized nanoparticles are fabricated. A simple, rapid, low-cost pathway based on a diffusion step of sol-gel nanoparticles into swollen bacterial cellulose membrane via orbital incubator is developed. This alternative pathway allows to keeping intact the 3D network of the bacterial cellulose membrane while sol-gel nanoparticles are formed in situ and anchored on the nanofibers surface. Titanium, vanadium oxide nanoparticles and a mixture of both are used to functionalize bacterial cellulose membrane. Fabricated hybrid inorganic/organic nanopapers are characterized by thermogravimetric analysis, X-ray diffraction spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, MTS mechanical testing, UV-vis spectroscopy, colorimeter and semiconductor analyzer. Synthesized photochromic hybrid nanopapers modified with vanadium and titanium oxide nanoparticles can find potential application as sensitive displays, biosensors and other optical devices.

• 出版日期2013-6