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The applications of photocatalytic waste minimisation in nuclear fuel processing

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNChapter (peer-reviewed)

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The applications of photocatalytic waste minimisation in nuclear fuel processing. / Boxall, Colin; Le Gurun, Gwénaëlle ; Taylor, Robin J.; Xiao, Shaorong.

Handbook of Environmental Chemistry. ed. / O Huntzinger. Vol. 2 Berlin : SPRINGER-VERLAG BERLIN, 2005. p. 451-481 (Handbook of Environmental Chemistry ; Vol. 2).

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNChapter (peer-reviewed)

Harvard

Boxall, C, Le Gurun, G, Taylor, RJ & Xiao, S 2005, The applications of photocatalytic waste minimisation in nuclear fuel processing. in O Huntzinger (ed.), Handbook of Environmental Chemistry. vol. 2, Handbook of Environmental Chemistry , vol. 2, SPRINGER-VERLAG BERLIN, Berlin, pp. 451-481. https://doi.org/10.1007/b138191

APA

Boxall, C., Le Gurun, G., Taylor, R. J., & Xiao, S. (2005). The applications of photocatalytic waste minimisation in nuclear fuel processing. In O. Huntzinger (Ed.), Handbook of Environmental Chemistry (Vol. 2, pp. 451-481). (Handbook of Environmental Chemistry ; Vol. 2). SPRINGER-VERLAG BERLIN. https://doi.org/10.1007/b138191

Vancouver

Boxall C, Le Gurun G, Taylor RJ, Xiao S. The applications of photocatalytic waste minimisation in nuclear fuel processing. In Huntzinger O, editor, Handbook of Environmental Chemistry. Vol. 2. Berlin: SPRINGER-VERLAG BERLIN. 2005. p. 451-481. (Handbook of Environmental Chemistry ). https://doi.org/10.1007/b138191

Author

Boxall, Colin ; Le Gurun, Gwénaëlle ; Taylor, Robin J. ; Xiao, Shaorong. / The applications of photocatalytic waste minimisation in nuclear fuel processing. Handbook of Environmental Chemistry. editor / O Huntzinger. Vol. 2 Berlin : SPRINGER-VERLAG BERLIN, 2005. pp. 451-481 (Handbook of Environmental Chemistry ).

Bibtex

@inbook{39f6a29989534589939b8d3017447c08,
title = "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+. ",
keywords = "photocatalysis, valence control",
author = "Colin Boxall and {Le Gurun}, Gw{\'e}na{\"e}lle and Taylor, {Robin J.} and Shaorong Xiao",
year = "2005",
doi = "10.1007/b138191",
language = "English",
isbn = "978-3-540-00269-7",
volume = "2",
series = "Handbook of Environmental Chemistry ",
publisher = "SPRINGER-VERLAG BERLIN",
pages = "451--481",
editor = "O Huntzinger",
booktitle = "Handbook of Environmental Chemistry",

}

RIS

TY - CHAP

T1 - The applications of photocatalytic waste minimisation in nuclear fuel processing

AU - Boxall, Colin

AU - Le Gurun, Gwénaëlle

AU - Taylor, Robin J.

AU - Xiao, Shaorong

PY - 2005

Y1 - 2005

N2 - 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+.

AB - 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+.

KW - photocatalysis, valence control

U2 - 10.1007/b138191

DO - 10.1007/b138191

M3 - Chapter (peer-reviewed)

SN - 978-3-540-00269-7

VL - 2

T3 - Handbook of Environmental Chemistry

SP - 451

EP - 481

BT - Handbook of Environmental Chemistry

A2 - Huntzinger, O

PB - SPRINGER-VERLAG BERLIN

CY - Berlin

ER -