Journal
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
Volume 65, Issue 3, Pages 111-124Publisher
TAYLOR & FRANCIS AS
DOI: 10.1080/00914037.2015.1038820
Keywords
4-Nitrophenol reduction; antimicrobial activity; dendrimer; multiwalled carbon nanotubes; nanohybrids; silver nanoparticles
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Funding
- NCNSNT (National Centre for Nanoscience and Nanotechnology)
- University of Madras
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Five types of multiwalled carbon nanotubes noncovalently functionalized with poly (propylene imine) dendrimer (PPI (G2))-silver nanoparticle hybrids were prepared by varying the [Ag+] load from 2 to 6 mM. These nanohybrids were characterized with FTIR, UV-Vis, FESEM, EDS, HRTEM and Raman analyses. The catalytic potential was studied through the reduction of 4-nitrophenol as a model reaction under pseudo first-order reaction conditions. The calculated k(obs) value (16.94 x 10(-2) min(-1)) reveals that the 4 mM [Ag+] loaded catalyst showed higher efficiency than with rest of the catalysts. Further, the in vitro antimicrobial activities of all nanohybrids were inspected against Pseudomonas aeruginosa and Staphylococcus aureus.
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