Journal of Nuclear Fuel Cycle and Waste Technology

The absorption spectra of Pu in stock solution were measured using a UV-Vis-NIR spectrophotometer after dissolving PuO2 with HNO3, HF and HClO4. The spectroscopic characteristics of Pu (III, IV, VI) in acidic, neutral and alkali media were investigated. Also, the intensities and position of major peaks for Pu(VI) were observed with increasing acidic and alkali concentration. The variation of oxidation states of Pu(VI) with an adding reducing reactant was investigated in HCl and NaOH medium.

Keywords

Pu oxidation state,spectroscopic characteristics,acid/alkali medium