{"title":"交联CTS复合离子筛的制备及对油田卤水中锂的吸附研究","authors":"Yuyu Gao, Bingbing Chen, Zhili Zhang","doi":"10.1007/s10230-025-01065-w","DOIUrl":null,"url":null,"abstract":"<p>The development of new technologies for extracting lithium from alternative sources, such as liquid brines, has become increasingly important. Among these technologies, lithium ion sieve adsorbents have garnered widespread attention due to their advantages, including simplicity of operation, low environmental impact, and recyclability. In this study, a crosslinked chitosan/H<sub>1.6</sub>Mn<sub>1.6</sub>O<sub>4</sub> (CTS/HMO) adsorbent with excellent adsorption performance for Li<sup>+</sup> in oilfield brine was prepared by coating crosslinked CTS onto lithium manganese oxides. The optimal conditions for Li<sup>+</sup> adsorption from brine using the crosslinked CTS/HMO adsorbent were found to be a temperature of 30 °C and a pH of 12, with a maximum adsorption capacity of 31.7 mg/g. After five adsorption–desorption cycles, the adsorbent's capacity decreased by only 3.15%, retaining an adsorption capacity of 30.7 mg/g, demonstrating its strong cyclic stability. This study offers a novel approach for the efficient recovery of lithium resources from oilfield brines.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":578,"journal":{"name":"General Relativity and Gravitation","volume":"15 1","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation of a Cross-linked CTS Composite Ion Sieve and a Study of Lithium Adsorption from Oilfield Brines\",\"authors\":\"Yuyu Gao, Bingbing Chen, Zhili Zhang\",\"doi\":\"10.1007/s10230-025-01065-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The development of new technologies for extracting lithium from alternative sources, such as liquid brines, has become increasingly important. Among these technologies, lithium ion sieve adsorbents have garnered widespread attention due to their advantages, including simplicity of operation, low environmental impact, and recyclability. In this study, a crosslinked chitosan/H<sub>1.6</sub>Mn<sub>1.6</sub>O<sub>4</sub> (CTS/HMO) adsorbent with excellent adsorption performance for Li<sup>+</sup> in oilfield brine was prepared by coating crosslinked CTS onto lithium manganese oxides. The optimal conditions for Li<sup>+</sup> adsorption from brine using the crosslinked CTS/HMO adsorbent were found to be a temperature of 30 °C and a pH of 12, with a maximum adsorption capacity of 31.7 mg/g. After five adsorption–desorption cycles, the adsorbent's capacity decreased by only 3.15%, retaining an adsorption capacity of 30.7 mg/g, demonstrating its strong cyclic stability. This study offers a novel approach for the efficient recovery of lithium resources from oilfield brines.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\",\"PeriodicalId\":578,\"journal\":{\"name\":\"General Relativity and Gravitation\",\"volume\":\"15 1\",\"pages\":\"\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-07-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"General Relativity and Gravitation\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1007/s10230-025-01065-w\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"General Relativity and Gravitation","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s10230-025-01065-w","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Preparation of a Cross-linked CTS Composite Ion Sieve and a Study of Lithium Adsorption from Oilfield Brines
The development of new technologies for extracting lithium from alternative sources, such as liquid brines, has become increasingly important. Among these technologies, lithium ion sieve adsorbents have garnered widespread attention due to their advantages, including simplicity of operation, low environmental impact, and recyclability. In this study, a crosslinked chitosan/H1.6Mn1.6O4 (CTS/HMO) adsorbent with excellent adsorption performance for Li+ in oilfield brine was prepared by coating crosslinked CTS onto lithium manganese oxides. The optimal conditions for Li+ adsorption from brine using the crosslinked CTS/HMO adsorbent were found to be a temperature of 30 °C and a pH of 12, with a maximum adsorption capacity of 31.7 mg/g. After five adsorption–desorption cycles, the adsorbent's capacity decreased by only 3.15%, retaining an adsorption capacity of 30.7 mg/g, demonstrating its strong cyclic stability. This study offers a novel approach for the efficient recovery of lithium resources from oilfield brines.
期刊介绍：
General Relativity and Gravitation is a journal devoted to all aspects of modern gravitational science, and published under the auspices of the International Society on General Relativity and Gravitation.
It welcomes in particular original articles on the following topics of current research:
Analytical general relativity, including its interface with geometrical analysis
Numerical relativity
Theoretical and observational cosmology
Relativistic astrophysics
Gravitational waves: data analysis, astrophysical sources and detector science
Extensions of general relativity
Supergravity
Gravitational aspects of string theory and its extensions
Quantum gravity: canonical approaches, in particular loop quantum gravity, and path integral approaches, in particular spin foams, Regge calculus and dynamical triangulations
Quantum field theory in curved spacetime
Non-commutative geometry and gravitation
Experimental gravity, in particular tests of general relativity
The journal publishes articles on all theoretical and experimental aspects of modern general relativity and gravitation, as well as book reviews and historical articles of special interest.
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