One-step gamma radiation aided diffusion of Ag-Au alloy nanoparticles into polycarbonate and its application towards the reduction of 4-Nitrophenol

K. Hareesh, D. V. Sunitha, Sanjay D. Dhole, Vasanth N. Bhoraskar, Deodatta M. Phase, Jim Williams

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

One-step gamma radiation aided method was adopted to synthesize face centre cubic structured Silver-Gold alloy nanoparticles (Ag-AuNPs)having particle size ∼10 nm and simultaneously diffused into Polycarbonate (PC). The depth of diffusion of Ag-AuNPs in PC was found to be 93 nm at a dose of 600 kGy. A broad peak around 492 nm in absorbance spectra was due to the surface plasmon resonance of Ag-AuNPs. X-ray Photoelectron spectroscopic results showed blue shift in Au 4f and Ag 3d peaks indicating the possible interaction of Ag-AuNPs with PC. The Ag-AuNPs diffused PC showed enhancement in catalytic reduction activity due to more adsorption and effective electron transfer from Ag-AuNPs to 4-Nitrophenol.

Original languageEnglish
Pages (from-to)126-130
Number of pages5
JournalRadiation Physics and Chemistry
Volume162
DOIs
Publication statusPublished - 1 Sep 2019

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