Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (1): 127-135.doi: 10.1007/s40242-024-3237-z

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Rapid Degrading Carbamazepine in a Novel Advanced Oxidation Process of Bisulfite Activated by Lithium Cobaltate Recovered from Spent Lithium-ion Battery

YAN Jiali1,2,3, YANG Kaiying1,2,3, WANG Xi1,2,3, ZHAI Jinli1,2,3, ZHU Wenjie1,2,3, YANG Daoli1, LUO Yongming1,2,3, GAO Xiaoya1,2,3   

  1. 1. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China;
    2. Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China;
    3. Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China
  • Received:2023-10-26 Online:2024-02-01 Published:2024-01-24
  • Contact: GAO Xiaoya
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 42067057, 42367060), the Science and Technology Plan Project of Yunnan Provincial Science and Technology Department, China (No. 202101AT070087), and the High-level Scientific Research Foundation for Talent Introduction of Kunming University of Science and Technology, China (No. 10978172).

Abstract: Maximizing the sustainable recycling of spent lithium-ion batteries (LIBs) shows economic and environmental significance. This study recovered lithium cobaltate (LiCoO2, LCO) from spent LIBs cathode powder. The recovered LCO was then combined with NaHSO3 to remove refractory organic pollutants of carbamazepine (CBZ) in water. The degradation of CBZ reached 80.0% within 60 min, by 1O2, SO4, ·OH and O2 generated in the LCO/NaHSO3 reaction. The electron transfer between Co (III) and Co (II) was beneficial to the generation of free radicals. The LCO/NaHSO3 degraded CBZ effectively in both secondary outlet water and tap water. However, high concentrations of inorganic ions (Cl, HCO3-, HPO42-, SO42-, NO3-) and natural organic matter (humic acid, HA) could inhibit the degradation of CBZ. After three cycles, the stability of the LCO/NaHSO3 system was demonstrated by the maintained high efficiency in the degradation of CBZ. The obtained data indicate that the LCO/NaHSO3 system holds great application potential in the field of advanced oxidation degradation of pollutants.

Key words: Spent lithium-ion battery, Lithium cobaltate, Carbamazepine, NaHSO3, Advanced oxidation