CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Efficient reuse of anode scrap from lithium-ion batteries as cathode for pollutant degradation in electro-Fenton process: Role of different recovery processes
Cao, Zhiqin1; Zheng, Xiaohong2; Cao, Hongbin2; Zhao, He2; Sun, Zhi2; Guo, Zhuang2; Wang, Kai2,3; Zhou, Bin4
2018-04-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume337Pages:256-264
Abstract

Effective recycling of spent graphite from lithium-ion batteries (LIBs) has a strong application potential. In this research, anode scrap of spent LIBs is efficiently recovered and reused as high-performance cathode in electro-Fenton system. Role of different recovery processes in the reuse of anode scrap powder in electro-Fenton system is focused, including Anode raw powder (RP), acid leaching (AL), acid and alkali leaching (AAL) residual powder. The results indicate functional groups of anode powder are changed by different leaching processes, which can significantly affect the subsequent reuse in electro-Fenton system. According to evaluation by electrochemical characterization, the AAL has a higher hydrogen peroxide (H2O2) selectivity and yield than RP and AL due to highly active two-electron reduction of oxygen (O-2). Interestingly, when anode powder is reused in electro-Fenton system, the AL electrode achieves 100% bisphenol A (BPA) removal in 70 min and 87.4% COD removal in 240 min, showing the best degradation efficiency. The reason can be attributed to higher carboxylic group content (35.83%) of AL powder than that of AAL (7%). Thus, part of iron ion in solution can be adsorbed on the surface of AL cathode, forming a partial heterogeneous iron oxidation-reduction. Furthermore, the reusability of AL electrode is evaluated. Compared with other carbon cathode, the AL cathode with a low current density still maintains 100% BPA removal after 10 reuse cycles. Since it is inherent with high reusability and environmental friendliness comparing with traditional cathode materials, this research demonstrates a potentially new approach to cooperatively treat pollutants from solid waste and waste water.

KeywordSpent Lithium-ion Batteries Recovery Electro-fenton Anode Scrap
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cej.2017.12.104
Indexed BySCI
Language英语
WOS KeywordWaste-water ; Aqueous-solutions ; Oxygen Reduction ; Graphite Cathode ; Carbon ; Generation ; Removal ; Acid ; H2o2 ; Composite
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(51378487 ; Youth Innovation Promotion Association, CAS(2014037) ; 51425405)
WOS IDWOS:000427616900026
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24127
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
3.Zhejiang Univ, Coll Chem & Biol Engn, Ind Ecol & Environm Res Inst, Hangzhou 310027, Zhejiang, Peoples R China
4.Adm Ctr Chinas Agenda 21, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Cao, Zhiqin,Zheng, Xiaohong,Cao, Hongbin,et al. Efficient reuse of anode scrap from lithium-ion batteries as cathode for pollutant degradation in electro-Fenton process: Role of different recovery processes[J]. CHEMICAL ENGINEERING JOURNAL,2018,337:256-264.
APA Cao, Zhiqin.,Zheng, Xiaohong.,Cao, Hongbin.,Zhao, He.,Sun, Zhi.,...&Zhou, Bin.(2018).Efficient reuse of anode scrap from lithium-ion batteries as cathode for pollutant degradation in electro-Fenton process: Role of different recovery processes.CHEMICAL ENGINEERING JOURNAL,337,256-264.
MLA Cao, Zhiqin,et al."Efficient reuse of anode scrap from lithium-ion batteries as cathode for pollutant degradation in electro-Fenton process: Role of different recovery processes".CHEMICAL ENGINEERING JOURNAL 337(2018):256-264.
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