Bioleaching Solutions Used for the Nanoparticles Biosynthesis for Uranium and Arsenic Immobilization

Agnieszka Pawlowska; Zygmunt Sadowski

doi:10.4028/www.scientific.net/SSP.304.45

Paper Titles

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Octahedral Layered Birnessite (OL) Supported Ag Catalysts: Characterization and Catalytic Oxidation of CO
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Bioleaching Solutions Used for the Nanoparticles Biosynthesis for Uranium and Arsenic Immobilization
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HomeSolid State PhenomenaSolid State Phenomena Vol. 304Bioleaching Solutions Used for the Nanoparticles...

Bioleaching Solutions Used for the Nanoparticles Biosynthesis for Uranium and Arsenic Immobilization

Abstract:

Bioleaching solutions from uranium and arsenic solid waste served as a source of U(VI) and As (V) ions, while plant extract from green tea (Camellia sinensis) – as a reductor for nanoparticle synthesis. Uranium dioxide and As (III) nanoparticles were formed as a product of bioreduction on the hematite and schwertmannite surfaces respectively, which resulted in an increase in the negative zeta potential with an increase in pH. It suggests, that the electrical potential depends on the presence of nanoparticles. The SEM microphotographs revealed the UO₂ nanoparticles on the hematite surface.

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Periodical:

Solid State Phenomena (Volume 304)

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45-50

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https://doi.org/10.4028/www.scientific.net/SSP.304.45

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Online since:

May 2020

Authors:

Agnieszka Pawlowska*, Zygmunt Sadowski

Keywords:

Arsenic Waste, Biosynthesis, Hematite, Nanoparticles, Plant Extract, Schwertmannite

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