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Shan W, Zi Y, Chen H, Li M, Luo M, Oo TZ, Lwin NW, Aung SH, Tang D, Ying G, Chen F, Chen Y. Coupling redox flow desalination with lithium recovery from spent lithium-ion batteries. WATER RESEARCH 2024; 252:121205. [PMID: 38301527 DOI: 10.1016/j.watres.2024.121205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
Electrochemical redox flow desalination is an emerging method to obtain freshwater; however, the costly requirement for continuously supplying and regenerating redox species limits their practical applications. Recycling of spent lithium-ion batteries is a growing challenge for their sustainable utilization. Existing battery recycling methods often involve massive secondary pollution. Here, we demonstrate a redox flow system to couple redox flow desalination with lithium recovery from spent lithium-ion batteries. The spontaneous reaction between a battery cathode material (LiFePO4) and ferricyanide enables the continuous regeneration of the redox species required for desalination. Several critical operating parameters are optimized, including current density, the concentrations of redox species, salt concentrations of brine, and the amounts of added LiFePO4. With the addition of 0.5920 g of spent LiFePO4 in five consecutive batches, the system can operate over 24 h, achieving 70.46 % lithium recovery in the form of LiCl aqueous solution at the concentration of 6.716 g·L-1. Simultaneously, the brine (25 mL, 10000 ppm NaCl) was desalinated to freshwater. Detailed cost analysis shows that this redox flow system could generate a revenue of ¥ 13.66 per kg of processed spent lithium-ion batteries with low energy consumption (0.77 MJ kg-1) and few greenhouse gas emissions indicating excellent economic and environmental benefits over existing lithium-ion battery recycling technologies, such as pyrometallurgical and hydrometallurgical methods. This work opens a new approach to holistically addressing water and energy challenges to achieve sustainable development.
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Affiliation(s)
- Wei Shan
- School of Electronics and Information Engineering, South China Normal University, Foshan 528225, China
| | - Yang Zi
- School of Electronics and Information Engineering, South China Normal University, Foshan 528225, China
| | - Hedong Chen
- School of Electronics and Information Engineering, South China Normal University, Foshan 528225, China
| | - Minzhang Li
- School of Electronics and Information Engineering, South China Normal University, Foshan 528225, China
| | - Min Luo
- School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Than Zaw Oo
- Department of Physics, Materials Research Laboratory, University of Mandalay, Mandalay 05032, Myanmar
| | - Nyein Wint Lwin
- Department of Physics, Materials Research Laboratory, University of Mandalay, Mandalay 05032, Myanmar
| | - Su Htike Aung
- Department of Physics, Materials Research Laboratory, University of Mandalay, Mandalay 05032, Myanmar
| | - Danling Tang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Guangguo Ying
- Environmental Research Institute/School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, Guangdong 510006, China
| | - Fuming Chen
- School of Electronics and Information Engineering, South China Normal University, Foshan 528225, China.
| | - Yuan Chen
- School of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, New South Wales 2006, Australia.
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Liu Y, Tian Y, Xu J, Wang C, Wang Y, Yuan D, Chew JW. Electrosorption performance on graphene-based materials: a review. RSC Adv 2023; 13:6518-6529. [PMID: 36845580 PMCID: PMC9950858 DOI: 10.1039/d2ra08252g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/19/2023] [Indexed: 02/28/2023] Open
Abstract
Due to its unique advantages such as flexible planar structure, ultrahigh specific surface area, superior electrical conductivity and electrical double-layer capacitance in theory, graphene has unparalleled virtues compared with other carbon materials. This review summarizes the recent research progress of various graphene-based electrodes on ion electrosorption fields, especially for water desalination utilizing capacitive deionization (CDI) technology. We present the latest advances of graphene-based electrodes, such as 3D graphene, graphene/metal oxide (MO) composites, graphene/carbon composites, heteroatom-doped graphene and graphene/polymer composites. Furthermore, a brief outlook on the challenges and future possible developments in the electrosorption area are also addressed for researchers to design graphene-based electrodes towards practical application.
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Affiliation(s)
- Yan Liu
- Engineering Research Center of Nuclear Technology Application (East China Institute of Technology), Ministry of Education Nanchang 330013 China
| | - Yun Tian
- Engineering Research Center of Nuclear Technology Application (East China Institute of Technology), Ministry of Education Nanchang 330013 China
| | - Jianda Xu
- Engineering Research Center of Nuclear Technology Application (East China Institute of Technology), Ministry of Education Nanchang 330013 China
| | - Changfu Wang
- Engineering Research Center of Nuclear Technology Application (East China Institute of Technology), Ministry of Education Nanchang 330013 China
| | - Yun Wang
- Engineering Research Center of Nuclear Technology Application (East China Institute of Technology), Ministry of Education Nanchang 330013 China
| | - Dingzhong Yuan
- Engineering Research Center of Nuclear Technology Application (East China Institute of Technology), Ministry of Education Nanchang 330013 China
| | - Jia Wei Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore .,Singapore Membrane Technology Center, Nanyang Environment and Water Research Institute, Nanyang Technological University Singapore 639798 Singapore
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Datar SD, Mane R, Jha N. Recent progress in materials and architectures for capacitive deionization: A comprehensive review. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10696. [PMID: 35289462 DOI: 10.1002/wer.10696] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Capacitive deionization is an emerging and rapidly developing electrochemical technique for water desalination across the globe with exponential growth in publications. There are various architectures and materials being explored to obtain utmost electrosorption performance. The symmetric architectures consist of the same material on both electrodes, while asymmetric architectures have electrodes loaded with different materials. Asymmetric architectures possess higher electrosorption performance as compared with that of symmetric architectures owing to the inclusion of either faradaic materials, redox-active electrolytes, or ion specific pre-intercalation material. With the materials perspective, faradaic materials have higher electrosorption performance than carbon-based materials owing to the occurrence of faradaic reactions for electrosorption. Moreover, the architecture and material may be tailored in order to obtain desired selectivity of the target component and heavy metal present in feed water. In this review, we describe recent developments in architectures and materials for capacitive deionization and summarize the characteristics and salt removal performances. Further, we discuss recently reported architectures and materials for the removal of heavy metals and radioactive materials. The factors that affect the electrosorption performance including the synthesis procedure for electrode materials, incorporation of additives, operational modes, and organic foulants are further illustrated. This review concludes with several perspectives to provide directions for further development in the subject of capacitive deionization. PRACTITIONER POINTS: Capacitive deionization (CDI) is a rapidly developing electrochemical water desalination technique with exponential growth in publications. Faradaic materials have higher salt removal capacity (SAC) because of reversible redox reactions or ion-intercalation processes. Combination of CDI with other techniques exhibits improved selectivity and removal of heavy metals. Operational parameters and materials properties affect SAC. In future, comprehensive experimentation is needed to have better understanding of the performance of CDI architectures and materials.
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Affiliation(s)
- Shreerang D Datar
- Department of Physics, Institute of Chemical Technology, Mumbai, India
| | - Rupali Mane
- Department of Physics, Institute of Chemical Technology, Mumbai, India
| | - Neetu Jha
- Department of Physics, Institute of Chemical Technology, Mumbai, India
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Modified TiO2-rGO Binary Photo-Degradation Nanomaterials: Modification, Mechanism, and Perspective. CATALYSIS SURVEYS FROM ASIA 2021. [DOI: 10.1007/s10563-021-09349-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Illés E, Tombácz E, Hegedűs Z, Szabó T. Tunable Magnetic Hyperthermia Properties of Pristine and Mildly Reduced Graphene Oxide/Magnetite Nanocomposite Dispersions. NANOMATERIALS 2020; 10:nano10122426. [PMID: 33291627 PMCID: PMC7761925 DOI: 10.3390/nano10122426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 11/29/2020] [Accepted: 12/02/2020] [Indexed: 12/19/2022]
Abstract
We present a study on the magnetic hyperthermia properties of graphene oxide/magnetite (GO/MNP) nanocomposites to investigate their heat production behavior upon the modification of the oxidation degree of the carbonaceous host. Avoiding the harsh chemical conditions of the regular in situ co-precipitation-based routes, the oppositely charged MNPs and GO nanosheets were combined by the heterocoagulation process at pH ~ 5.5, which is a mild way to synthesize composite nanostructures at room temperature. Nanocomposites prepared at 1/5 and 1/10 GO/MNP mass ratios were reduced by NaBH4 and L-ascorbic acid (LAA) under acidic (pH ~ 3.5) and alkaline conditions (pH ~ 9.3). We demonstrate that the pH has a crucial effect on the LAA-assisted conversion of graphene oxide to reduced GO (rGO): alkaline reduction at higher GO loadings leads to doubled heat production of the composite. Spectrophotometry proved that neither the moderately acidic nor alkaline conditions promote the iron dissolution of the magnetic core. Although the treatment with NaBH4 also increased the hyperthermic efficiency of aqueous GO/MNP nanocomposite suspensions, it caused a drastic decline in their colloidal stability. However, considering the enhanced heat production and the slightly improved stability of the rGO/MNP samples, the reduction with LAA under alkaline condition is a more feasible way to improve the hyperthermic efficiency of magnetically modified graphene oxides.
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Affiliation(s)
- Erzsébet Illés
- Correspondence: (E.I.); (T.S.); Tel.: +36-62-544-112 (T.S.)
| | | | | | - Tamás Szabó
- Correspondence: (E.I.); (T.S.); Tel.: +36-62-544-112 (T.S.)
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