Large scale solution based assembly of nanomaterials with predefined optoelectronic properties is a very challenging task because it requires precisely controlled chemical composition and tight placement of the components. In this regard, quite a few recent reports have shown the potential of self-assembly in designing families of novel materials with preplanned physical and chemical properties.In this presentation, we will disclose a high yield fabrication strategy to produced self-assembled arrays of silver nanoparticles. The self assembled arrays of silver nanoparticles are produced in organic solvents via reduction of silver nitrate in presence of TTPI/TOA couple. In this process no additional reducing agents is required because combination of TTPI/TOA not only stabilizes the nanoparticles but also act as reducing agent. Using IR and NMR, we will demonstrate that in this case the particles are stabilized via coordination of the nitrogen and carbonyl of the isocyanurate ring of TTPI. One of the very beneficial features of this strategy is that the nanoparticles are stabilized by TTPI, which can undergo hydrolytic condensation polymerization reactions to provide a well defined network which entraps the self assembled nanoparticles.  The characterization of self assembled arrays and polymerization of TTPI to produce gel nucleated nanoparticles was carried out using TEM, SEM, UV-vis, IR and NMR techniques.  In addition, we will present the preliminary studies of the catalytic activity of self assembled nanoparticles in 4-nitrophenol reduction reaction.

Unique hybrids of silver nanoparticles and tris [3-(trimethoxysilyl) propyl] isocyanurate (TTPI): Controlled fabrication, characterization, and their application in catalysis

248th National Meeting (2014)

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