Process analysis of AuCl 4 - sorption leading to gold nanoparticle synthesis by Shewanella putrefaciens - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Chemical Engineering Journal Année : 2016

Process analysis of AuCl 4 - sorption leading to gold nanoparticle synthesis by Shewanella putrefaciens

Résumé

A process evaluation of AuCl4 - ( < 300 mg/L, < pH 3, H2 e-donor) sorption kinetics and mass transfer analysis by initially viable Shewanella putrefaciens is presented here. Following on from previous reports of a thermodynamically spontaneous reaction, high sorption capacity of 1346 mg/g and significant evidence of zero valent gold nanoparticles (AuNPs) deposited within the bacterial cell wall. Linear and non-linearized kinetic modelling of the data shows a good fit to a pseudo second-order model and theoretical analysis of diffusional limiting steps suggest diffusion on the surface or through the cell wall to be the process rate limiting step. Process analysis of microbial gold synthesis, provides a foundation for the design of smart reactor systems for process intensification.
Fichier principal
Vignette du fichier
8C9E9DC2-E7A8-492E-8596-915233C19EFB.pdf (942.81 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01780363 , version 1 (29-04-2021)

Identifiants

Citer

Jeet Chandrakant Varia, Asfaw Zegeye, Sharon Velasquez-Orta, Steve Bull. Process analysis of AuCl 4 - sorption leading to gold nanoparticle synthesis by Shewanella putrefaciens. Chemical Engineering Journal, 2016, 288, pp.482 - 488. ⟨10.1016/j.cej.2015.12.001⟩. ⟨hal-01780363⟩
170 Consultations
113 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More