Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 189, Issue 1-2, Pages 377-383Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2011.02.048
Keywords
Bacterial cellulose; CdS nanoparticle; Nanofiber; Photocatalyst
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Funding
- National Natural Science Foundation of China [10776014, 21074055]
- NUST [2010ZDJH04]
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In this work, we describe a novel facile and effective strategy to prepare micrometer-long hybrid nanofibers by deposition of CdS nanoparticles onto the substrate of hydrated bacterial cellulose nanofibers (BCF). Hexagonal phase CdS nanocrystals were achieved via a simple hydrothermal reaction between CdCl2 and thiourea at relatively low temperature. The prepared pristine BCF and the CdS/BCF hybrid nanofibers were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), UV-vis absorption spectroscopy (UV-vis), and X-ray photoelectron spectroscopy (XPS). The results reveal that the CdS nanoparticles were homogeneously deposited on the BCF surface and stabilized via coordination effect. The CdS/BCF hybrid nanofibers demonstrated high-efficiency photocatalysis with 82% methyl orange (MO) degradation after 90 min irradiation and good recyclability. The results indicate that the CdS/BCF hybrid nanofibers are promising candidate as robust visible light responsive photocatalysts. (C) 2011 Elsevier B.V. All rights reserved.
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