Selective lithium extraction from diluted binary solutions using metal-organic frameworks (MOF)-based membrane capacitive deionization (MCDI)

IF 8.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Desalination Pub Date : 2023-06-15 DOI:10.1016/j.desal.2023.116569

Hanwei Yu , Sayed Mukit Hossain , Chen Wang , Youngwoo Choo , Gayathri Naidu , Dong Suk Han , Ho Kyong Shon

{"title":"Selective lithium extraction from diluted binary solutions using metal-organic frameworks (MOF)-based membrane capacitive deionization (MCDI)","authors":"Hanwei Yu , Sayed Mukit Hossain , Chen Wang , Youngwoo Choo , Gayathri Naidu , Dong Suk Han , Ho Kyong Shon","doi":"10.1016/j.desal.2023.116569","DOIUrl":null,"url":null,"abstract":"<div>The increasing demand for lithium (Li) calls for exploring efficient and environmental-friendly methods to extract Li from brine. Capacitive deionization (CDI) as an emerging technology is of interest for resource recovery because of its rapid adsorption rate, limited energy consumption, and low environmental impact. However, Na and K in seawater and seawater reverse osmosis (SWRO) brine and Mg and Ca in inland brine challenge the feasibility of selective Li extraction. Herein, CDI was integrated with deposition-coated ZIF-8-PDA membranes to extract Li from binary solutions containing Li and M (M representing Na, K, Mg, and Ca). MCDI tests were conducted under a series of voltages (±0.5 V, ±1.0 V, and ±1.5 V) to investigate the influence of applied potentials on Li extraction performances. The results indicated advantages for Li extraction when coexisting cations were monovalent than divalent. Additionally, a lower voltage of 0.5 V could provide superior Li selectivity, charge efficiency (CE), and energy normalized to Li (ENL) than higher voltages. Especially, Li selectivity of 1.50 and 1.85 was achieved in Li/Na and Li/K feeds under 0.5 V, 37 % and 74 % higher than those under 1.5 V, respectively, illuminating the potential of MCDI for Li extraction from seawater and SWRO brine with low energy input.</div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"556 ","pages":"Article 116569"},"PeriodicalIF":8.3000,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Desalination","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0011916423002011","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The increasing demand for lithium (Li) calls for exploring efficient and environmental-friendly methods to extract Li from brine. Capacitive deionization (CDI) as an emerging technology is of interest for resource recovery because of its rapid adsorption rate, limited energy consumption, and low environmental impact. However, Na and K in seawater and seawater reverse osmosis (SWRO) brine and Mg and Ca in inland brine challenge the feasibility of selective Li extraction. Herein, CDI was integrated with deposition-coated ZIF-8-PDA membranes to extract Li from binary solutions containing Li and M (M representing Na, K, Mg, and Ca). MCDI tests were conducted under a series of voltages (±0.5 V, ±1.0 V, and ±1.5 V) to investigate the influence of applied potentials on Li extraction performances. The results indicated advantages for Li extraction when coexisting cations were monovalent than divalent. Additionally, a lower voltage of 0.5 V could provide superior Li selectivity, charge efficiency (CE), and energy normalized to Li (ENL) than higher voltages. Especially, Li selectivity of 1.50 and 1.85 was achieved in Li/Na and Li/K feeds under 0.5 V, 37 % and 74 % higher than those under 1.5 V, respectively, illuminating the potential of MCDI for Li extraction from seawater and SWRO brine with low energy input.

Abstract Image

查看原文本刊更多论文

基于金属有机框架(MOF)的膜电容去离子(MCDI)从稀释二元溶液中选择性提取锂

随着对锂需求的不断增长，探索高效、环保的从盐水中提取锂的方法势在必行。电容去离子(CDI)技术作为一种新兴的资源回收技术，因其吸附速度快、能耗小、环境影响小等优点而备受关注。然而，海水和海水反渗透(SWRO)盐水中的Na和K以及内陆盐水中的Mg和Ca对选择性提取Li的可行性提出了挑战。本文将CDI与沉积涂层的ZIF-8-PDA膜结合，从含有Li和M (M代表Na、K、Mg和Ca)的二元溶液中提取Li。在±0.5 V、±1.0 V和±1.5 V电压下进行MCDI试验，考察外加电位对锂提取性能的影响。结果表明，共存阳离子为一价时比二价时更有利于锂的提取。此外，与较高电压相比，0.5 V的较低电压可以提供更好的锂选择性、电荷效率(CE)和归一化到锂的能量(ENL)。特别是在0.5 V条件下，Li/Na和Li/K的Li选择性分别达到1.50和1.85，比1.5 V条件下分别提高37%和74%，说明MCDI在低能量输入海水和SWRO盐水中提取Li的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Desalination 工程技术-工程：化工

CiteScore

14.60

自引率

20.20%

发文量

619

审稿时长

41 days

期刊介绍： Desalination is a scholarly journal that focuses on the field of desalination materials, processes, and associated technologies. It encompasses a wide range of disciplines and aims to publish exceptional papers in this area. The journal invites submissions that explicitly revolve around water desalting and its applications to various sources such as seawater, groundwater, and wastewater. It particularly encourages research on diverse desalination methods including thermal, membrane, sorption, and hybrid processes. By providing a platform for innovative studies, Desalination aims to advance the understanding and development of desalination technologies, promoting sustainable solutions for water scarcity challenges.