Multiple interactions steered high affinity toward PFAS on ultrathin layered rare-earth hydroxide nanosheets: Remediation performance and molecular-level insights

•YOHCl nanosheets exhibit ultra-high adsorption capacity (957.1 mg/g) toward PFOA.•Multi-mechanisms (ion exchange, electrostatic, coordination) lead to high removal.•YOHCl poses stable performance across various matrices with robust reusability.•YOHCl-based continuous-flow column simultaneously removes multiple low-level PFAS.