In the current investigation, CuO with a flower-like morphology has been successfully synthesized in situ in a chitosan medium (0.0015 g mL−1) from copper nitrate (Cu(NO3)2·3H2O) and ammonia solution via a facile microwave-induced method. The as-prepared CuO was characterized by SEM, TEM, EDX, XRD, FTIR and TGA. The antibacterial activity of the flower-CuO against Escherichia coli was examined by analyzing colony forming units, and it was proved that the flower-CuO was able to kill >99% bacteria. Further, the flower-CuO exhibited excellent catalytic activity towards the reduction of 4-nitrophenol to 4-aminophenol in the presence of NaBH4. The reaction kinetics followed a pseudo-first-order rate law with a rate constant of 0.183 min−1. To the best of our knowledge, this is the first time that copper oxide with the flower-like morphology has been synthesized by using a chitosan solution.
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© 2017 Elsevier Ltd
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry