Silver nanoparticles prepared by gamma irradiation across metal-organic framework templates

He, Li, Dumée, Ludovic F., Liu, Dan, Velleman, Leonora, She, Fenghua, Banos, Connie, Davies, Justin B. and Kong, Lingxue 2015, Silver nanoparticles prepared by gamma irradiation across metal-organic framework templates, RSC Advances, vol. 5, no. 14, pp. 10707-10715, doi: 10.1039/c4ra10260f.

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Title Silver nanoparticles prepared by gamma irradiation across metal-organic framework templates
Author(s) He, Li
Dumée, Ludovic F.ORCID iD for Dumée, Ludovic F.
Liu, DanORCID iD for Liu, Dan
Velleman, Leonora
She, FenghuaORCID iD for She, Fenghua
Banos, Connie
Davies, Justin B.
Kong, LingxueORCID iD for Kong, Lingxue
Journal name RSC Advances
Volume number 5
Issue number 14
Start page 10707
End page 10715
Total pages 9
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2015
ISSN 2046-2069
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Summary In this study, we demonstrate for the first time the successful fabrication of well-dispersed ultrafine silver nanoparticles inside metal-organic frameworks through a single step gamma irradiation at room temperature. HKUST-1 crystals are soaked in silver nitrate aqueous solution and irradiated with a Cobalt 60 source across a range of irradiation doses to synthesize highly uniformly distributed silver nano-particles. The average size of the silver nanoparticles across the Ag@HKUST-1 materials is found to vary between 1.4 and 3 nm for dose exposures between 1 and 200 kGy, respectively. The Ag@HKUST-1 hybrid crystals exhibit strong surface plasmon resonance and are highly durable and efficient catalytic materials for the reduction of 4-nitrophenol to 4-aminophenol (up to 14.46 × 10-3 s-1 for 1 kGy Ag@HKUST-1). The crystals can be easily recycled for at least five successive cycles of reaction with a conversion efficiency higher than 99.9%. The gamma irradiation is demonstrated to be an effective and environmental friendly process for the synthesis of nano-particles across confined metal-organic frameworks at room temperature with potential applications in environmental science.
Language eng
DOI 10.1039/c4ra10260f
Field of Research 030199 Analytical Chemistry not elsewhere classified
091202 Composite and Hybrid Materials
Socio Economic Objective 869999 Manufacturing not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Royal Society of Chemistry
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Document type: Journal Article
Collections: Institute for Frontier Materials
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