Chemistry of the Interaction and Retention of Tc^VII and Tc^IV Species at the Fe₃O₄(001) Surface.

ABSTRACT: The pertechnetate ion Tc^VIIO₄ ^- is a nuclear fission product whose major issue is the high mobility in the environment. Experimentally, it is well known that Fe₃O₄ can reduce Tc^VIIO₄ ^- to Tc^IV species and retain such products quickly and completely, but the exact nature of the redox process and products is not completely understood. Therefore, we investigated the chemistry of Tc^VIIO₄ ^- and Tc^IV species at the Fe₃O₄(001) surface through a hybrid DFT functional (HSE06) method. We studied a possible initiation step of the Tc^VII reduction process. The interaction of the Tc^VIIO₄ ^- ion with

SUBMITTER: Bianchetti E 

PROVIDER: S-EPMC10150389 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature