Preparation of Manganese Dioxide Nanomaterials by Recycling Crude Manganese Sulfate from Spent Lithium-ion Batteries
Crude MnSO4 from hydrometallurgical recovery of spent lithium-ion battery was used as manganese source.The optimum reaction conditions were as follows:the molar ratio of MnSO4 to KMnO4 was 1∶3,and the hydrothermal reaction was conducted at 150 ℃ for 12 h.δ-MnO2 with flower ball like structure was prepared under optimal conditions.The formaldehyde removal rate was close to 100％within 60 min using this material as the catalyst,and its catalytic performance was comparable to that of the material using pure MnSO4 as the manganese source.And after 100 cycles of testing,the removal of formaldehyde performance was stable.
NETL
NSTL
万方数据
