Fig. 1: Schematic illustration of the 1,2,4-triazolium-based POPcarbene adsorbent (Ptriaz-CN-A) for gold recovery and characterization of Ptriaz-CN and Ptriaz-CN-A.
From: Porous organic polycarbene nanotrap for efficient and selective gold stripping from electronic waste
a Scheme of gold recovery from electronic wastes by Ptriaz-CN-A via a wet-chemistry approach. b The mechanism of interaction between Au3+ and crosslinked Ptriaz-CN-A. c Nitrogen adsorption-desorption isotherms and pore size distribution plot of Ptriaz-CN-A. d SEM image of Ptriaz-CN-A. e FT-IR and f solid-state 13C NMR spectra of Ptriaz-CN (bottom line) and the as-synthesized Ptriaz-CN-A (top line). g N 1s XPS analysis of the as-synthesized Ptriaz-CN-A. The coloured shadings represent the internal integral area of different characteristic peaks. N4 (purple), Amidine (blue), Triazine (orange), N1 (red) and N2 (brown). Source data are provided as a Source Data file.
