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Open Access Immobilization of Bi2O3 nanoparticles on the cellulose fibers of paper matrices and investigation of its antibacterial activity against E. coli in visible light

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Bismuth oxide (Bi2O3) nanoparticles of diameters in the range of 30 to 100 nm have been immobilized on the cellulose fibers of the paper matrices by a facile single step in situ method. These paper matrices were employed to study the antibacterial activity against Escherichia coli in visible light. The Bi2O3 contents in the paper matrices were varied from 0 to 5 wt% and its effect on the antibacterial activity has been investigated. It has been observed that the paper matrices with 5 wt% Bi2O3 could inhibits a complete E. coli growth in 9 h of visible light exposure with an initial bacterial count of 431 × 105 CFU mL–1. The structural and microstructural characterization of the Bi2O3 nanoparticles and the paper matrices were carried out by FESEM, XRD and FTIR etc.

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Keywords: ANTIBACTERIAL ACTIVITY; BI2O3 NANOPARTICLES; E. COLI; HYDROTHERMAL SYNTHESIS; SOFTWOOD PULP

Document Type: Research Article

Publication date: October 1, 2015

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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