Synthesis of azole-functionalized microspheres and their adsorption properties for gold(i) thiosulfate complex

Abstract

Gold is an essential precious metal with exceptional properties. Thus, azole-functionalized microspheres (PS-3-AT) were prepared by grafting 3-amino-1,2,4-triazole (3-AT) to chloromethyl polystyrene beans (PS-Cl) and used as a novel adsorbent...

Facile synthesis of a novel covalent triazine framework for recovering gold(i) from thiosulfate solution

“…Only one main peak was observed in the Cl 2p spectrum of CTF-MG (Fig. 2b), which was divided into two smaller peaks after peak splitting fitting, and the binding energy was 197.08–198.68 eV, corresponding to the peak of Cl − in CTF-MG. 35 Cl − was derived from ammonium chloride. On the one hand, ammonium chloride provided acidic conditions for CTF-MG synthesis, which is conducive to the synthetic reaction.…”

“…2f, the binding energies of Au 4f 5/2 and Au 4f 7/2 orbitals are 87.85 and 84.18 eV, respectively. The two peaks observed at 87.48 and 83.78 eV correspond to Au 0 , 39 those observed at 87.80 and 84.13 eV correspond to Au + , 35 and those observed at 89.07 and 85.40 eV correspond to Au 3+ . 40 Thus, the gold adsorbed by MG has a valence of +1.…”