Hollow spherical nano-traps using pillararene-based polymer for efficient uranium extraction from seawater

Abstract

Herein, a hollow spherical pillar[5]arene-based polymer (P5-AO) adsorbent was synthesized. The P5-AO adsorbent was capable of effectively capturing uranium from simulated seawater (139.5 mg g⁻¹) and real seawater (8.1 mg g⁻¹). We also elucidated the uranium adsorption mechanism of P5-AOvia extended X-ray absorption fine structure (EXAFS). This study provides a novel direction for the development of uranium capture adsorbents.