5‐Bromo‐2,9‐bis(5,6‐diphenyl‐1,2,4‐triazin‐3‐yl)‐1,10‐phenanthrolin as an Efficient Ligand for Selective Removal of Strontium and Cobalt from Aqueous Solution | Zendy

Jang Jiseon | Zendy; Harwood Laurence M. | Zendy; Lee Dae Sung | Zendy

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5‐Bromo‐2,9‐bis(5,6‐diphenyl‐1,2,4‐triazin‐3‐yl)‐1,10‐phenanthrolin as an Efficient Ligand for Selective Removal of Strontium and Cobalt from Aqueous Solution

Author(s) -

Jang Jiseon,

Harwood Laurence M.,

Lee Dae Sung

Publication year - 2019

Publication title -

bulletin of the korean chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.237

H-Index - 59

ISSN - 1229-5949

DOI - 10.1002/bkcs.11706

Subject(s) - strontium , chemistry , ligand (biochemistry) , aqueous solution , cobalt , divalent , nuclear chemistry , ion , metal ions in aqueous solution , metal , extraction (chemistry) , alkaline earth metal , inorganic chemistry , medicinal chemistry , organic chemistry , receptor , biochemistry

In this study, 5‐bromo‐2,9‐bis(5,6‐diphenyl‐1,2,4‐triazin‐3‐yl)‐1,10‐phenanthroline (5‐bromo‐Ph4‐BTPhen) was synthesized and evaluated for its ability to remove major radionuclides (Cs + , Sr 2+ , and Co 2+ ). The synthesized ligand removed both Sr 2+ and Co 2+ from 1 mg/L aqueous solutions with extraction efficiencies of up to 99% at neutral and alkaline pH. The Sr 2+ and Co 2+ removal efficiencies decreased as a consequence of the higher bonding strengths of competing metal ions to the N‐donor atoms in the cavity of the ligand; competing divalent ions affected the Sr 2+ and Co 2+ removal efficiencies more than monovalent ions.

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