Fig. 2: Adsorption performance of Ptriaz-CN-A.
From: Porous organic polycarbene nanotrap for efficient and selective gold stripping from electronic waste
a Adsorption isotherm of Au3+ on Ptriaz-CN-A and related Langmuir isotherm fitting (R2 = 0.988) b Time-dependent adsorption efficiencies of Au3+ at various pH values (pH = 2 (orange square), pH = 4 (brown circle), pH = 7 (purple triangle), pH = 9 (red rhombus)). c Au3+ adsorption isotherms of Ptriaz-CN-A (red triangle), Pimidaz-CN-A (orange square) and Ppyridi-CN-A (purple circle). d XRD patterns for Au-loaded, Pt-loaded, Cu-loaded, and metal-free Ptriaz-CN-A. e STEM images and elemental mapping for Au-loaded Ptriaz-CN-A (upper row, scale bar, 200 nm) and Pt-loaded Ptriaz-CN-A (lower row, scale bar, 100 nm). f The corresponding size distribution histogram of Au nanoparticles. g Selective adsorption of Au3+ on Ptriaz-CN-A in simulated electronic wastewater. Error bars represent standard deviation. n = 3 independent experiments. Source data are provided as a Source Data file.
