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Synthesis of cationic polymer decorated with halogen for highly efficient trapping 99TcO4-/ReO4- by You-Gan Wang; Qing-Hua Hu; Juan Huang; Wei Jiang; Li Zhang; Ru-Ping Liang; Jian-Ding Qiu is a Environmental Science article available to read on EtoBox.

What is Synthesis of cationic polymer decorated with halogen for highly efficient trapping 99TcO4-/ReO4- about?

The elimination of anion is of great importance from radioactive nuclear waste containing 99TcO4 - by rationally designing anion-scavenging materials with high density of charge and more accessible adsorption sites. Herein, a tailor-made cationic organic polymer with donor-acceptor (D-A) structure, namely TrDCPN, was successfully synthesized by rationally modifying the benzimidazole unit for efficient trapping the perrhenate (ReO4 -) as a 99Tc surrogate. Systematic control of the skeleton affect enables the material to integrate a variety of features, surmounting the long-term challenge of 99TcO4 -/ReO4 - remediation under extreme conditions of high acid/base and high ionic strength. Furthermore, the TrDCPN shows excellent affinity toward ReO4 - in the existence of large excess of competitive anions (SO4 2-, NO3 - and PO4 3- etc.) as well as promising reusability for trapping ReO4 -. The excellent stability and separation were derived from the introduction of large conjugated modules, triazine core and hydrophobic. More importantly, the synthetic cationic organic polymer with D-A feature was first proved that the introduction of halogen can effectively enhance the backbone charge,

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Author

You-Gan Wang; Qing-Hua Hu; Juan Huang; Wei Jiang; Li Zhang; Ru-Ping Liang; Jian-Ding Qiu

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)