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Sustainable Strategies For The Production Of Nanomaterials And Their Application In Green Environmental Remediation.
Citation:
VARMA, R. S. Sustainable Strategies For The Production Of Nanomaterials And Their Application In Green Environmental Remediation. Presented at 2nd Annual Conference, Green Technologies for the Environment, Windsor Locks, CT, October 14, 2009.
Impact/Purpose:
To inform the public.
Description:
Vitamins B2, B1, C, tea polyphenols, and natural surfactants, which function both as reducing and capping agents, provide extremely simple, one-pot, green synthetic methods to bulk quantities of nanomaterials in water. Shape-controlled synthesis of noble nanostructures via microwave (MW)-assisted spontaneous reduction of noble metal salts using sugars and glutathione will be presented. A general method has been developed that accomplishes the cross-linking reaction of poly (vinyl alcohol) (PVA) with metallic systems such as Pt, Cu, and In; bimetallic systems, namely Pt-In, Ag-Pt, Pt-Fe, Cu-Pd, Pt-Pd and Pd-Fe; and SWNT, MWNT, and C-60. The strategy is extended to the formation of biodegradable carboxymethyl cellulose (CMC) composite films with noble nanometals; such metal decoration and alignment of carbon nanotubes in CMC is possible using MW approach which also enables the shape-controlled bulk synthesis of Ag and Fe nanorods in poly (ethylene glycol). MW hydrothermal process delivers magnetic nanoferrites and micro-pine structured catalysts are also obtainable in water from readily available metal salts. The eco-friendly generation of magnetic nanoparticles, nanocomposites with renewable polymers and their applications in catalysis and sustainable environmental remediation will be highlighted.
URLs/Downloads:
SECOND ANNUAL CONFERENCE GREEN TECHNOLOGIES FOR THE ENVIRONMENT
FOR FURTHER INFORMATION.PDF (PDF, NA pp, 5 KB, about PDF)