Journal
CHEMICAL ENGINEERING JOURNAL
Volume 173, Issue 3, Pages 706-714Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2011.07.081
Keywords
Synthesis; Conducting; Nano-composite; Cation-exchanger and microbial activity
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Funding
- Council of Science and Technology, Lucknow, U.P. [CST/D-3554]
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A series of organic-inorganic conducting nano-composite cation-exchanger have been synthesized via sol-gel method and characterized by using FTIR, XRD,TGA-DTA, SEM, TEM, AFM and Raman studies. The structural studies confirm the semi-crystalline nature of the material with the particle size ranging from 2 to 20 nm. The observed band gap for the different samples was found to be in the range of 3.19-3.65 eV which shows that nano-composite materials cover semiconducting range. Activation energy was also calculated using thermo gravimetric analysis. Electrical measurements show that the resistivity of samples is highly dependent on the % of inorganic precipitate within the composite. Nano-composite material has also been tested against the various bacterial (Escherichia coli, Bacillus thuringiensis and Pseudomonas aeruginosa) and fungal strains (Aspergillus nigrus, Fusarium oxysporum and Penicillium chrysogenum) and relatively higher activities were observed than the known antibiotics. (C) 2011 Elsevier B.V. All rights reserved.
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