Work

Silica gel with covalently attached bambusuril macrocycle for dicyanoaurate sorption from water

Year: 2025

Type: article

Abstract: Anion removal from aqueous solutions remains a major challenge due to the strong hydration of anions. Here, we report the preparation of silica gel functionalized with covalently anchored bambusuril macrocycles. In aqueous solution, this material efficiently sorbs dicyanoaurate(I), the key anion in gold mining, even in the presence of competing dicyanoargentate(I) anions. We also examine the recyclability of the material and assess its stability in organic solvents, comparing its performance with that of a previously developed material containing noncovalently bound bambusuril.

Source: Beilstein Journal of Organic Chemistry

DOI: 10.3762/bjoc.21.201

Authors: Michaela Šusterová, Vladimír Šindelář

Institutions: Masaryk University, RECETOX

Language: English

Topic: Supramolecular Chemistry and Complexes

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: diamond

Funders: European Commission, Ministerstvo Školství, Mládeže a Tělovýchovy, Horizon 2020 Framework Programme