Abstract
Fe/Zn metal organic nanosheet (B-FeZn) was prepared using 1,4-benzenedicarboxylic acid and triethylamine. B-FeZn showed a remarkable trace-level lead (II) (Pb
2+
) adsorption performance. The removal rates reached ≥ 98% within 60 min. After five adsorption/desorption cycles, the adsorption capacity of B-FeZn for Pb
2+
was decreased by 17.10%. Langmuir isothermal model and pseudo-second-order kinetic model were applied to define the purification process via the adsorption with high fitting degrees. The maximum adsorption capacity reached 215.90 mg·g
−1
. The prepared B-FeZn material exhibits a remarkable performance, with a fast adsorption rate and a prominent regeneration performance, in the adsorption for trace Pb
2+
, providing a novel Pb
2+
adsorbent with a bright future in the Pb
2+
removal in industrial production.
Graphical abstract