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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Boxall, Colin
Lancaster University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2022Corrosion Behaviour of AGR Simulated Fuels (SIMFUELs)
- 2019The behaviour of spent nuclear fuel in wet interim storage
- 2019Towards the decontamination of plutonium contaminated bricks
- 2018Mechanisms of fixed contamination of commonly engineered surfaces
- 2017Real time nanogravimetric monitoring of corrosion in radioactive environments
- 2017AGR Cladding Corrosioncitations
- 2016The effect of acetohydroxamic acid on stainless steel corrosion in nitric acidcitations
- 2016Real-Time Nanogravimetric Monitoring of Corrosion in Radioactive Decontamination Systemscitations
- 2016Corrosion of AGR Fuel Pin Steel Under Conditions Relevant to Permanent Disposalcitations
- 2015Corrosion behaviour of AGR SIMFUELScitations
- 2015The effect of SO3-Ph-BTBP on stainless steel corrosion in nitric acidcitations
- 2015Real time nanogravimetric monitoring of corrosion for nuclear decommissioningcitations
- 2013The metallisation of insulating substrates with nano-structured metal films of controllable pore dimensioncitations
- 2013The development of nanoporous metal membranes for analytical separartions
- 2013Nitric acid reduction on 316L stainless steel under conditions representative of reprocessingcitations
- 2013Corrosion behaviour of AGR simulated fuelscitations
- 2013The nanoporous metallisation of polymer membranes through photocatalytically initiated electroless depositioncitations
- 2012Method for formation of porous metal coatings
- 2012Surface Decontamination by Photocatalysis
- 2012The nanoporous metallisation of insulating substrates through Photocatalytically Initiated Electroless Deposition (PIED)
- 2012Semiconductor photocatalysis and metal deposition
- 2012Fixed Contamination on Steel Surfaces: First Use of Quartz Crystal Microgravimetry to Measure Oxide Growth on Process Steels Under Conditions Typical of Nuclear Reprocessingcitations
- 2010Surface decontamination by photocatalysis
- 2009Synthesis of alpha- and beta-FeOOH iron oxide nanoparticles in non-ionic surfactant mediumcitations
- 2006Mesoporous and Nanoparticulate Metal Oxides: Applications in New Photocatalysis
- 2005The applications of photocatalytic waste minimisation in nuclear fuel processingcitations
Places of action
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booksection
The applications of photocatalytic waste minimisation in nuclear fuel processing
Abstract
Nuclear fuel processing has two main waste management requirements: (1) the disposal of waste organic solvent (secondary waste) generated by solvent extraction processes during the separation and purification of uranium and plutonium in nuclear fuel and materials processing; and (2) the management of the small fractions of U and Pu that are inseparable during reprocessing (primary waste). Environmental impact associated with fuel use and reprocessing can be minimised by addressing either of these requirements.Semiconductor particles and films may act as efficient photocatalysts for a range of environmentally and industrially useful reactions including heavy metal recovery from effluent streams by manipulation of the metal valence state. The manipulation of actinide metal ion oxidation states plays an important role in nuclear fuel and materials processing. Thus, this review explores the potential use of heterogeneous photocatalysis in actinide valence state control in the context of actinide photochemistry and minimised primary and secondary waste management requirements in the plutonium-uranium reduction extraction (PUREX) nuclear fuel processing route.Criteria are defined for the selection of heterogeneous semiconductor catalysts and sacrificial charge scavengers for use within reprocessing scenarios and two main applications discussed: (1) the photocatalytic control of the neptunium ion oxidation state and consequent separation of Np from Pu and U; and (2) the photocatalytic control of U and Pu ion oxidation states and their consequent separation from each other. A quantum efficiency, phi, of 0.27 is reported for the photocatalytic reduction of the Pu(IV) simulant, Ce4+ to Ce3+ at PH 0. The high value of phi is attributed to both the forward and reverse charge transfer processes occurring via a dynamic quenching mechanism. Yields of 100% are reported for the reductions of UO22+ to U4+ and Ce4+ to Ce3+.