Robust dialdehyde xylan-cross-linked aminated lignin network; high-capacity and renewable biological macromolecular platform for palladium recovery.
Developing sustainable adsorbents from renewable resources is vital for strategic precious metal recovery. In this study, a largely biomass-derived network, dialdehyde xylan (DAX)-crosslinked polyethylenimine (PEI)-aminated lignin (DPAL), was synthesized through a green, water-based process. Xylan was oxidized to DAX a...