From cellulose solution in NaOH and urea aqueous solution with cooling, nanoporous cellulose gels were prepared. Subsequently, the sol-gel synthesis method was used to fabricate nanostructured titania in nanoporous of the cellulose gels, which started from tetra-n-butyl titanate. Moreover, the anatase crystalline of titania was obtained in nanoporous cellulose gels. Then the composite gels were dried with supercritical CO2 to obtain composite aerogels with low density, moderate light transmittance, a large surface area, high mechanical integrity and photo-catalytic degradation properties. The application prospect of the nanocomposite gel is useful as a photocatalytic degradation material.

Cellulose-titania nanocomposite aerogels by in situ fabricating titania in cellulose gels

245th National Meeting (2013)

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