Artículo
Regular arrangement of Pt nanoparticles on S-layer proteins isolated from Lactobacillus kefiri: synthesis and catalytic application
Bolla, Patricia Araceli
; Sanz, Agustina; Huggias, Sofia
; Ruggera, José Fernando
; Serradell, María de los Ángeles
; Casella, Mónica Laura
Fecha de publicación:
27/12/2018
Editorial:
Elsevier
Revista:
Molecular Catalysis
ISSN:
2468-8231
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work, platinum bionanocatalysts using S-layer proteins isolated from two strains of Lactobacillus kefiri as template were obtained. TEM and STEM images evidenced that Pt/CBS8348 shows a P6-array while Pt/CBS83111 does not show any defined array. Noteworthy, nanometric and subnanometric Pt clusters were observed in both Pt/CBS8348 and Pt/CBS83111 catalysts, with an average metal particle size estimated by TEM of 3.62 and 3.88 nm, respectively. Also, Pt/CBS8348 showed a higher number of dispersed Pt single atoms than Pt/CBS83111. Both Pt bionanocatalysts showed an excellent performance in the reduction of p-nitrophenol, reaching conversion values close to 65-70% in 15 min. Besides, both Pt/CBS8348 and Pt/CBS83111 were successfully reused nine times, maintaining conversion values between 75 and 90%.
Palabras clave:
Bionanocatalysts
,
Hydrogenation
,
P-Nitrophenol
,
Platinum
,
S-Layer
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Articulos(CINDECA)
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Citación
Bolla, Patricia Araceli; Sanz, Agustina; Huggias, Sofia; Ruggera, José Fernando; Serradell, María de los Ángeles; et al.; Regular arrangement of Pt nanoparticles on S-layer proteins isolated from Lactobacillus kefiri: synthesis and catalytic application; Elsevier; Molecular Catalysis; 27-12-2018; 1-9
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