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The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Published

Standard

The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry. / Boxall, Colin; Taylor, Robin; LeGurun, G.

RSC Special Publication: Recent Advances in Actinide Science. ed. / Iain May; Rebeca Alvares; Nicholas Bryan. Vol. 305 Cambridge : Royal Society of Chemistry, 2006. p. 113-115.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Boxall, C, Taylor, R & LeGurun, G 2006, The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry. in I May, R Alvares & N Bryan (eds), RSC Special Publication: Recent Advances in Actinide Science. vol. 305, Royal Society of Chemistry, Cambridge, pp. 113-115. <http://pubs.rsc.org/en/content/ebook/978-0-85404-678-2>

APA

Boxall, C., Taylor, R., & LeGurun, G. (2006). The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry. In I. May, R. Alvares, & N. Bryan (Eds.), RSC Special Publication: Recent Advances in Actinide Science (Vol. 305, pp. 113-115). Royal Society of Chemistry. http://pubs.rsc.org/en/content/ebook/978-0-85404-678-2

Vancouver

Boxall C, Taylor R, LeGurun G. The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry. In May I, Alvares R, Bryan N, editors, RSC Special Publication: Recent Advances in Actinide Science. Vol. 305. Cambridge: Royal Society of Chemistry. 2006. p. 113-115

Author

Boxall, Colin ; Taylor, Robin ; LeGurun, G. / The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry. RSC Special Publication: Recent Advances in Actinide Science. editor / Iain May ; Rebeca Alvares ; Nicholas Bryan. Vol. 305 Cambridge : Royal Society of Chemistry, 2006. pp. 113-115

Bibtex

@inproceedings{4dc7030587c7491ea74e1a8eede7a3e3,
title = "The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry",
abstract = "Colloidal semiconductor particles may act as efficient photocatalysts for a range of environmentally and industrially useful reactions. The primary step in these reactions is the absorption of ultra-band gap energy photons by the particles, which generates electron-hole ( ) pairs within the semiconductor lattice. The valence band holes/conduction band electrons may recombine or diffuse to the semiconductor surface where they may either reduce/oxidise particle lattice sites or undergo interfacial electron transfer with a surface adsorbed substrate or species in solution1. Photocatalytic treatment of metal ion species by such particles has a number of important commercial applications in precious metal recovery2 and in the removal of heavy elements from effluent streams3. The purpose of the work reported in this communication is to investigate the potential of heterogeneous photocatalysis as a mean of controlling the valence state of key actinide and metal species in such a way as to improve the performance of nuclear fuel reprocessing and decontamination technologies. For example, colloidal photocatalysis could be used to convert the valence state of actinides to insoluble species, which may then be selectively removed from solution. In this paper, we report some results obtained for the photoreduction of species such as cerium, a lanthanide whose thermodynamic Eh-pH diagram most closely approximates that of plutonium, and uranium as well as a kinetics analysis of the cerium system.",
author = "Colin Boxall and Robin Taylor and G. LeGurun",
year = "2006",
language = "English",
isbn = "978-0-85404-678-2",
volume = "305",
pages = "113--115",
editor = "Iain May and Rebeca Alvares and Nicholas Bryan",
booktitle = "RSC Special Publication",
publisher = "Royal Society of Chemistry",

}

RIS

TY - GEN

T1 - The Application of Colloidal Photocatalysis in Actinide Photoredox Chemistry

AU - Boxall, Colin

AU - Taylor, Robin

AU - LeGurun, G.

PY - 2006

Y1 - 2006

N2 - Colloidal semiconductor particles may act as efficient photocatalysts for a range of environmentally and industrially useful reactions. The primary step in these reactions is the absorption of ultra-band gap energy photons by the particles, which generates electron-hole ( ) pairs within the semiconductor lattice. The valence band holes/conduction band electrons may recombine or diffuse to the semiconductor surface where they may either reduce/oxidise particle lattice sites or undergo interfacial electron transfer with a surface adsorbed substrate or species in solution1. Photocatalytic treatment of metal ion species by such particles has a number of important commercial applications in precious metal recovery2 and in the removal of heavy elements from effluent streams3. The purpose of the work reported in this communication is to investigate the potential of heterogeneous photocatalysis as a mean of controlling the valence state of key actinide and metal species in such a way as to improve the performance of nuclear fuel reprocessing and decontamination technologies. For example, colloidal photocatalysis could be used to convert the valence state of actinides to insoluble species, which may then be selectively removed from solution. In this paper, we report some results obtained for the photoreduction of species such as cerium, a lanthanide whose thermodynamic Eh-pH diagram most closely approximates that of plutonium, and uranium as well as a kinetics analysis of the cerium system.

AB - Colloidal semiconductor particles may act as efficient photocatalysts for a range of environmentally and industrially useful reactions. The primary step in these reactions is the absorption of ultra-band gap energy photons by the particles, which generates electron-hole ( ) pairs within the semiconductor lattice. The valence band holes/conduction band electrons may recombine or diffuse to the semiconductor surface where they may either reduce/oxidise particle lattice sites or undergo interfacial electron transfer with a surface adsorbed substrate or species in solution1. Photocatalytic treatment of metal ion species by such particles has a number of important commercial applications in precious metal recovery2 and in the removal of heavy elements from effluent streams3. The purpose of the work reported in this communication is to investigate the potential of heterogeneous photocatalysis as a mean of controlling the valence state of key actinide and metal species in such a way as to improve the performance of nuclear fuel reprocessing and decontamination technologies. For example, colloidal photocatalysis could be used to convert the valence state of actinides to insoluble species, which may then be selectively removed from solution. In this paper, we report some results obtained for the photoreduction of species such as cerium, a lanthanide whose thermodynamic Eh-pH diagram most closely approximates that of plutonium, and uranium as well as a kinetics analysis of the cerium system.

M3 - Conference contribution/Paper

SN - 978-0-85404-678-2

VL - 305

SP - 113

EP - 115

BT - RSC Special Publication

A2 - May, Iain

A2 - Alvares, Rebeca

A2 - Bryan, Nicholas

PB - Royal Society of Chemistry

CY - Cambridge

ER -