June2019_MS_Pd fungi paper manuscript_JBB_subm_after review.pdf (698.14 kB)
Biomineralization of Pd nanoparticles using Phanerochaete chrysosporium as a sustainable approach to turn platinum group metals (PGMs) wastes into catalysts
journal contribution
posted on 2020-05-20, 10:49 authored by Sophie Tarver, Daniel Gray, Konstantin Loponov, Diganta DasDiganta Das, Tao SunTao Sun, Maria SotenkoDue to the increasing demand for recovery of precious metals from waste streams, the role of fungus as a potential adsorbent is growing. Thus, this research aimed to develop a novel method for the biomineralization of palladium nanoparticles using Phanerochaete chrysosporium fungus. The adsorption of palladium onto the fungal mycelium was studied by adding palladium salt at 12–48 ppm to the fermentation medium following the fungal growth. Amide groups of chitin and proteins on the surface of the fungus are believed to coordinate palladium cations yielding Freundlich-type competitive adsorption isotherm. The adsorption capacity was found to reach 22-128 mgPd g−1 of dried fungal biomass. Biomineralization of palladium from an aqueous solution led to the formation of extracellular well defined Pd nanoparticles of 10–14 nm confirmed by XPS, TEM and XRD analyses. The biologically synthesised nanoparticles were found to perform equally well to a Pd/C commercial catalyst in a Heck reaction of styrene and iodobenzene. This is the first reported use of Phanerochaete chrysosporium to synthesise palladium nanoparticles and confirmation of their resulting catalytic activity. The presented example paves the way for the development of fungi-based membranes to be used in the palladium recovery from industrial effluents.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
International Biodeterioration & BiodegradationVolume
143Issue
September 2019Publisher
ElsevierVersion
- AM (Accepted Manuscript)
Rights holder
© Elsevier LtdPublisher statement
This paper was accepted for publication in the journal International Biodeterioration & Biodegradation and the definitive published version is available at https://doi.org/10.1016/j.ibiod.2019.104724.Acceptance date
2019-06-21Publication date
2019-07-03Copyright date
2019ISSN
0964-8305eISSN
1879-0208Publisher version
Language
- en
Depositor
Dr Diganta Das. Deposit date: 19 May 2020Article number
104724Usage metrics
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No categories selectedKeywords
Science & TechnologyLife Sciences & BiomedicineBiotechnology & Applied MicrobiologyEnvironmental SciencesEnvironmental Sciences & EcologyWHITE-ROT FUNGUSEXTRACELLULAR BIOSYNTHESISHETEROGENEOUS CATALYSTSILVER NANOPARTICLESBACTERIAL BIOMASSHEAVY-METALSRECOVERYBIOACCUMULATIONHYDROGENATIONBiotechnologyBiological Sciences
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