Ultra-selective uranium separation by in-situ formation of π-f conjugated 2D uranium-organic framework.

ABSTRACT: With the rapid development of nuclear energy, problems with uranium supply chain and nuclear waste accumulation have motivated researchers to improve uranium separation methods. Here we show a paradigm for such goal based on the in-situ formation of π-f conjugated two-dimensional uranium-organic framework. After screening five π-conjugated organic ligands, we find that 1,3,5-triformylphloroglucinol would be the best one to construct uranium-organic framework, thus resulting in 100% uranium removal from both high and low concentration with the residual concentration far below the WHO drinking water standard (15 ppb), and 97% uranium capture from natural seawater (3.3 ppb) with a record uptake efficiency of 0.64 mg·g^-1·d^-1. We also find that 1,3,5-triformylphloroglucino

SUBMITTER: Zhang QY 

PROVIDER: S-EPMC10784586 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature