Journal
APPLIED SURFACE SCIENCE
Volume 256, Issue 7, Pages 2241-2244Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2009.10.034
Keywords
Bacterial cellulose; Nanofiber; Pd-Cu catalyst; Nitrate removal
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Funding
- National Natural Science Foundation of China [10776014]
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In this work, we describe a novel facile method to prepare long one-dimensional hybrid nanofibers by using hydrated bacterial cellulose nanofibers (BCF) as template. Palladium-copper nanoparticles were prepared in BCF by immersing BCF in a mixture solution of PdCl2 and CuCl2 in water and followed reduction of absorbed metallic ion inside of BCF to the metallic Pd-Cu nanoparticles using potassium borohydride. The bare BCF and the composites were characterized by a range of analytical techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The results reveal that the Pd-Cu nanoparticles were homogeneously precipitated on the BCF surface. The Pd-Cu/BCF was used as a catalyst for water denitrification, which showed that it has high catalytic activity. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
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