Energy transfer characteristics of the hydrogen peroxide induced Ce3+-Ce4+ mixture

Spectrochim Acta A Mol Biomol Spectrosc. 2000 Aug;56A(9):1795-800. doi: 10.1016/s1386-1425(00)00237-7.

Abstract

Luminescence of Ce3+ in the hydrogen peroxide induced sulfuric acid solutions was observed to be quenched by Ce4+ ions in the solution by energy transfer due to electric dipole interaction between Ce3+ and Ce4+. A systematic investigation of the energy transfer characteristics of Ce3+-Ce4+ mixture has been made by measuring the absorption, luminescence and excitation spectra at room temperature. The effect of the concentration of Ce3+ on the energy transfer process has been also studied and the critical transfer distance (Ro) has been calculated considering Förster type interaction between the ions and found to be 8.7 A for the mixture of 1 x 10(-4) mol 1(-1) Ce3+ and 3 x 10(-4) mol l(-1) Ce4+.

MeSH terms

  • Cerium / chemistry*
  • Energy Transfer
  • Hydrogen Peroxide / chemistry*
  • Spectrophotometry, Ultraviolet

Substances

  • Cerium
  • Hydrogen Peroxide