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Luminescence of uranyl ion complexed with 2,6-pyridine dicarboxylic acid as ligand in acetonitrile medium: observation of co-luminescence

  • Siuli Maji EMAIL logo , Satendra Kumar and Kannan Sankaran
Published/Copyright: March 7, 2017
Radiochimica Acta
From the journal Radiochimica Acta Volume 105 Issue 8

Abstract

Luminescence from UO22+ (uranyl ion) complexed with 2,6-pyridine dicarboxylic acid (PDA) has been studied using acetonitrile (MeCN) as solvent between pH 1.0 and 6.0. The enhancement in luminescence intensity because of sensitization by PDA in the non-aqueous environment provided by the MeCN is found to be one order better than in aqueous medium. The luminescence is further enhanced by about four times following the addition of Y3+; a process known as co-luminescence. This is the first study on co-luminescence of uranyl ion in its PDA complex. Lifetime studies indicate the presence of two species having different micro-environments. Formations of both intra and inter molecular complexes are believed to be responsible for enhancement due to co-luminescence.

Keywords: Luminescence; co-luminescence; 2,6-pyridine dicarboxylic acid; uranyl; acetonitrile

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Received: 2016-10-26
Accepted: 2017-1-23
Published Online: 2017-3-7
Published in Print: 2017-7-26

©2017 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Measurement of activation cross sections of the 27Al(n,α)24Na and 27Al(n,p)27Mg reactions with quasi-monoenergetic neutrons
  3. Luminescence of uranyl ion complexed with 2,6-pyridine dicarboxylic acid as ligand in acetonitrile medium: observation of co-luminescence
  4. Optimization of uranyl ions removal from aqueous solution by natural and modified kaolinites
  5. Stability constant determinations for technetium (IV) complexation with selected amino carboxylate ligands in high nitrate solutions
  6. Evaluation of ammonium bifluoride fusion for rapid dissolution in post-detonation nuclear forensic analysis
  7. A thermodynamic model for the solubility of HfO2(am) in the aqueous K + – HCO3 − – CO32 − –  OH − – H2O system
  8. The role of correlations in the determination of the transport properties of LaCl3 in high temperature molten eutectic LiCl–KCl
  9. Fabrication of a flexible polycarbonate/porphyrin film dosimeter for high dose dosimetry
  10. Complexing power of hydro-soluble degradation products from γirradiated polyvinylchloride: influence on Eu(OH)3(s) solubility and Eu(III) speciation in neutral to alkaline environment
https://doi.org/10.1515/ract-2016-2718
Keywords for this article
Luminescence; co-luminescence; 2,6-pyridine dicarboxylic acid; uranyl; acetonitrile

Articles in the same Issue

  1. Frontmatter
  2. Measurement of activation cross sections of the 27Al(n,α)24Na and 27Al(n,p)27Mg reactions with quasi-monoenergetic neutrons
  3. Luminescence of uranyl ion complexed with 2,6-pyridine dicarboxylic acid as ligand in acetonitrile medium: observation of co-luminescence
  4. Optimization of uranyl ions removal from aqueous solution by natural and modified kaolinites
  5. Stability constant determinations for technetium (IV) complexation with selected amino carboxylate ligands in high nitrate solutions
  6. Evaluation of ammonium bifluoride fusion for rapid dissolution in post-detonation nuclear forensic analysis
  7. A thermodynamic model for the solubility of HfO2(am) in the aqueous K + – HCO3 − – CO32 − –  OH − – H2O system
  8. The role of correlations in the determination of the transport properties of LaCl3 in high temperature molten eutectic LiCl–KCl
  9. Fabrication of a flexible polycarbonate/porphyrin film dosimeter for high dose dosimetry
  10. Complexing power of hydro-soluble degradation products from γirradiated polyvinylchloride: influence on Eu(OH)3(s) solubility and Eu(III) speciation in neutral to alkaline environment
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