An adsorbent ZO (oxidized ZIF-8-derived carbon) was prepared on the ZIF-8-derived carbon (ZC) by Hummer's method. The removal rate and adsorption amount of Pb2+ was measured on different molar ratio of 2-Hmim to 2, 2 '-bipyridine in ZO, including 1:1 (1:1 ZO) and 1:2 (1:2 ZO). The adsorption experiments show that the best condition to adsorb Pb2+ in Pb2+ solution for 1:1 ZO is adsorbent dosage of 20 mg, adsorption time of 16 h, initial Pb2+concentration of 15 mg/L, and pH = 3; that for 1:2 ZO is adsorbent dosage of 15 mg, adsorption time of 18 h, initial Pb2+ concentration of 15 mg/L, and pH = 4. The adsorption data fits the quasi-second-order kinetics and the Langmuir adsorption model. The competitive adsorption results show that 1:1 ZO and 1:2 ZO have a superior selectivity for Pb2+ competing with Cu2+ and Fe2+.This study shows 1:2 ZO is more helpful for the removal of Pb2+ than 1:1 ZO.