Blanco, E.; Esteve-Adell, I.; Atienzar Corvillo, PE.; Casas, J.; Hernández, P.; Quintana, C. (2016). Cucurbit[7]uril-stabilized gold nanoparticles as catalysts of the nitro compound reduction reaction. RSC Advances. 6(89):86309-86315. doi:10.1039/c6ra07168f
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/85642
Title:
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Cucurbit[7]uril-stabilized gold nanoparticles as catalysts of the nitro compound reduction reaction
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Author:
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Blanco, Elias
Esteve-Adell, Iván
Atienzar Corvillo, Pedro Enrique
Casas, J.A.
Hernández, P.
Quintana, C.
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
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Issued date:
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Abstract:
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[EN] The catalytic performance of cucurbit[7]uril-protected gold nanoparticles is reported for the first time for the reductive degradation of the banned but still used antibacterial compound nitrofurantoin. The ...[+]
[EN] The catalytic performance of cucurbit[7]uril-protected gold nanoparticles is reported for the first time for the reductive degradation of the banned but still used antibacterial compound nitrofurantoin. The cucurbit[7]uril-protected gold nanoparticles were produced by Au(III) reduction by sodium borohydride and subsequent addition of cucurbit[7]uril as a ligand. Working in this way, 5.7 nm gold nanoparticles were obtained and characterised by spectrophotometric and high-resolution transmission electron microscopic techniques. For a 1 : 100 nitro compound : sodium borohydride molar ratio, a normalised pseudo-first order apparent constant of 0.27 L s(-1) m(-2) at 25 degrees C and an activation energy of 34 kJ mol(-1) were obtained. For comparative purposes, the reduction reaction of the pollutant 4-nitrophenol was also studied and an apparent kinetic constant of 0.12 L s(-1) m(-2) at 25 degrees C and an activation energy of 68 kJ mol-1 were obtained, data that, when compared with recently reported work, demonstrates that these nanoparticles are an efficient catalyst.
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Subjects:
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Palladium nanostructures
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Metallic nanoparticles
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Silver nanoparticles
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Facile synthesis
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4-nitrophenol
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Size
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Nitrofurantoin
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Chemistry
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S
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Junctions
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Copyrigths:
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Reconocimiento - No comercial (by-nc)
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Source:
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RSC Advances. (issn:
2046-2069
)
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DOI:
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10.1039/c6ra07168f
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Publisher:
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Royal Society of Chemistry
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Publisher version:
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http://doi.org/10.1039/c6ra07168f
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Project ID:
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CAM/S2013/MIT-3029/NANOAVANSENS)
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Thanks:
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The authors would like to thank the Comunidad Aut´onoma de Madrid (S2013/MIT-3029, NANOAVANSENS).
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Type:
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Artículo
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