Photochemistry of uranyl(VI) tributylphosphate in supercritical CO2: An evidence of photochemical reduction by ethanol

Zsolt Fazekas, Tomoo Yamamura, Yoon Yul Park, Masayuki Harada, Hiroshi Tomiyasu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The photochemistry of uranyl(VI)-tributylphosphate (TBP) complex in supercritical carbon dioxide (scCO2) was studied in the pressure range of 8-40 MPa and from 289 to 336 K. Deactivation rate constants decreased with the increase of pressure. Temperature dependence analysis of the deactivation rate constants indicated that scCO2 contributes differently to deactivation processes from liquid phase CO2 based on activation barriers. An UV irradiation experiment proved photochemical reduction of uranyl(VI)-TBP complex by ethanol in scCO2.

Original languageEnglish
Pages (from-to)30-31
Number of pages2
JournalChemistry Letters
Issue number1
DOIs
Publication statusPublished - 2000 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)

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