Surface-activated anion exchange resins for synthesis and immobilization of gold and palladium nano- and microstructures

摘要: Abstract A series of surface-activate anion exchange resins, bearing amino functionalities, were employed in processes multiple adsorption and desorption AuCl4−, PtCl62 − PdCl42 − from solutions 0.1 3 mol ∙ L− 1 HCl. The resins with ethylenediamine (EDA) 1-(2-aminoethyl)piperazine (AEP) functionalities efficiently removed up to 100 wt% the noble metals, however, instead expected total elution, they revealed only 50 wt% desorption. phenomenon was caused by fact, that an ability reduce ionic forms gold palladium their nano- microparticles creating colloids nanocomposites. For reason generated metallic investigated using X-Ray Diffraction (XRD), Dynamic Light Scattering (DLS) Scanning Electron Microscopy (SEM). size obtained structures range 50–1000 nm, because reduction involves transfer electron a donor nitrogen it is dependent on number atoms ligands. very close look at changes resins' chemical has been taken Fourier Transformation Infrared Spectroscopy allowing determine possible reduction.