Novel Polyazamacrocyclic Receptor Impregnated Macroporous Polymeric Resins for Highly Efficient Capture of Palladium from Nitric Acid Media

•Synthesis of a novel polymeric resin with a specific binding ability to Pd(II).•Rapid kinetics, high adsorption capacity and selectivity toward Pd(II) in HNO3 and HCl media.•A new column separation system for practical enrichment and recovery of Pd(II).•New insights into the binding mechanism of polyazamacrocyclic receptors to Pd(II).