TY  - JOUR
AB  - Highly selective anion recognition and extraction is challenging and yet critical for removal of pollutants from the environment and the effective recovery of valuable chemicals from low-content (at sub-ppm or ppb level) sources. In this paper, we detail the gram-scale synthesis of a superphane 2, an anion receptor that selectively binds ReO4?. Superphane 2 can extract perrhenate from solid mixtures containing traces of ReO4? anion (as low as 200 ppb) and aqueous media with near 100% selectivity over large excesses of competing anions. Meanwhile, up to 99.99% of ReO4? can be separated from complex simulated aqueous waste streams containing ppm-level perrhenate via either liquid-liquid extraction or simple column adsorption. Importantly, after extraction or adsorption, superphane 2 can be recycled and reused by simple treatment with aqueous NaHCO3.
AU  - Zhou, W
AU  - Li, A
AU  - Gale, PA
AU  - He, Q
DA  - 2022/05/18
DO  - 10.1016/j.xcrp.2022.100875
JO  - Cell Reports Physical Science
PB  - Elsevier
PY  - 2022/05/18
SP  - 100875
TI  - A highly selective superphane for ReO<inf>4</inf><sup>?</sup> recognition and extraction
VL  - 3
Y1  - 2022/05/18
Y2  - 2026/06/13
ER  -