Affiliation:
1. Laboratory for Detection of Irradiated Food , Institute of Nuclear Chemistry and Technology , Dorodna 16 Str. , Warsaw , Poland
Abstract
Abstract
Radiation-induced processes in ionic liquid (IL) methyltributylammonium bis[(trifluoromethyl)sulfonyl] imide ([MeBu3N][NTf2]) solutions containing p-terphenyl (TP) and saturated with carbon dioxide (CO2) were studied using nanosecond pulse radiolysis technique with UV-vis detection. The transient absorption spectra generated in these solutions were assigned to TP radical anions (TP•−) and triplet excited states (3TP*). Saturation of [MeBu3N][NTf2] solutions with carbon dioxide efficiently takes out presolvated electrons
(
e
presolv
−
)
( {{\rm{e}}_{{\rm{presolv}}}^ - } )
and solvated electrons
(
e
solv
−
)
( {{\rm{e}}_{{\rm{solv}}}^ - } )
. On the other hand CO2 is not a scavenger of excited states of TP (1TP*, 3TP*), which in the reaction with triethylamine (TEA) leads to the formation of TP•−.
Subject
Waste Management and Disposal,Condensed Matter Physics,Safety, Risk, Reliability and Quality,Instrumentation,Nuclear Energy and Engineering,Nuclear and High Energy Physics