Preparation and characterization of cellulose/hydrous niobium oxide hybrid

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Maschio, Leandro Jose
Fernandes Pereira, Paulo Henrique [UNESP]
Caetano Pinto da Silva, Maria Lucia

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Elsevier B.V.


A composite of cellulose extracted from bagasse with Nb2O5 center dot nH(2)O in three different proportions (16.67, 37.5 and 50.0 wt%) was prepared using the co-precipitation method. The materials were characterized by X-ray diffractometry (XRD), Fourier transform infra-red spectroscopy (FTIR), thermogravimetric analysis (TG/DTG), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). TG data obtained show that the presence of inorganic material influenced slightly the stability of the hybrid material. The precipitation of 16.67 wt.% of oxide was sufficient to inhibit the combustion peaks present in the DSC curve of cellulose. This work will help find new applications for these materials. Published by Elsevier Ltd.



Cellulose, Hydrous niobium oxide, Sugarcane bagasse

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Carbohydrate Polymers. Oxford: Elsevier B.V., v. 89, n. 3, p. 992-996, 2012.