期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 420, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.126552
关键词
Spent Lithium-ion batteries; Anode material; Peroxymonosulfate; Advanced oxidation process; Refractory organic contaminants
资金
- National Natural Science Foundation of China [72088101, 51739004, 21776066]
The study focused on developing a method to recycle spent lithium-ion battery anodes into efficient heterogeneous catalysts for degrading organic contaminants. The recycled anode material showed high effectiveness in activating peroxymonosulfate and was capable of degrading a wide range of organic pollutants, making it a promising approach for environmental remediation.
It is critical to developing low-cost and efficient catalysts to activate peroxymonosulfate for the degradation of organic contaminants, whereas it remains challenging. In the study, a recycle method to synthesize efficient heterogeneous catalysts was developed by exploiting the anode electrode of spent lithium-ion batteries as the raw material based on a one-step calcination process. The recycled anode material (AM) composed of copper oxide and graphite carbon was capable of efficiently activating peroxymonosulfate (PMS) to degrade a wide range of organic contaminants. In addition, an investigation was conducted on the effect of reactive parameters (e.g., catalyst dose, PMS dose, RhB concentration, and coexisting matters). Besides, the AM/PMS process could exhibit high effectiveness at a broad pH range (3-10) and in a real water matrix. The redox cycle of Cu(II)/Cu(I) in the AM acted as the predominated force to effectively facilitate the PMS activation for the formation of oxygen species, in which the SO4 center dot- and O-1(2) exerted a primary effect. Moreover, the non-radical pathway of electron transfer between RhB and PMS facilitated the removal of RhB. In this study, a reclamation approach was developed for the recycling of spent LIBs anodes, and insights into the development of catalysts in SR-AOPs were gained.
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