Desalination最新文献

{"title":"Dictyophora-based evaporator developed by sericin bidirectional crosslinking for photocatalytic degradation and efficient solar desalination in harsh environments","authors":"Qian Yang ,&nbsp;Junkai Gao ,&nbsp;Mengsheng Xia ,&nbsp;Jingkang Fang ,&nbsp;Weipeng Wu ,&nbsp;Yan Chen","doi":"10.1016/j.desal.2025.118849","DOIUrl":"10.1016/j.desal.2025.118849","url":null,"abstract":"<div><div>This study introduces a novel dictyophora-based evaporator, SCNT/TiO₂@PAM-DIC, developed through a pioneering sericin bidirectional crosslinking strategy. This innovative material boasts a range of advantages, including environmental friendliness, salt resistance, antibacterial properties, acid and alkali resistance, oil repellency, and pressure resistance. By incorporating polyacrylamide (PAM) hydrogel enhanced with sericin, SCNT/TiO₂@PAM-DIC significantly improves the mechanical strength of dictyophora while offering anti-fouling, antibacterial, and high-efficiency evaporation capabilities. Unlike its predecessor DIC, SCNT/TiO₂@PAM-DIC retains a porous structure with a smoother surface, enabling multiple sunlight reflections and prolonged exposure, which enhances its solar absorption to an impressive 93 %. Photothermal conversion studies reveal that SCNT/TiO₂@PAM-DIC achieves a surface temperature of 63.5 °C within 5 min, surpassing DIC (29.1 °C) and S@PAM-DIC (30.9 °C). The evaporation rate of SCNT/TiO₂@PAM-DIC is significantly higher at 2.495 kg m⁻² h⁻¹, compared to 1.149 kg m⁻² h⁻¹ for DIC and 1.433 kg m⁻² h⁻¹ for S@PAM-DIC. Additionally, its dark evaporation rate is 1.8 times that of pure water. The material's exceptional salt rejection and self-cleaning properties are attributed to the presence of zwitterionic groups in its structure. Mechanically, SCNT/TiO₂@PAM-DIC demonstrates superior compressive performance and stability, with compressive stresses of 0.516 MPa at a 25 % compression ratio, significantly higher than DIC's 0.104 MPa. Furthermore, it achieves an 83.5 % photocatalytic degradation efficiency of methylene blue within 3 h. Its robust performance in challenging environments, such as oily wastewater, emulsified oil, organic dyes, and acidic/alkaline solutions, positions SCNT/TiO₂@PAM-DIC as a promising solution for advanced water purification technologies, offering a new avenue for sustainable water treatment.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"609 ","pages":"Article 118849"},"PeriodicalIF":8.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the mechanisms in lithium-ion selectivity enhancement by coating cation exchange membranes with doped polypyrrole","authors":"Lingchen Kong ,&nbsp;Li Chen ,&nbsp;Eric Palacios ,&nbsp;Yongchang Yu ,&nbsp;Nicole Conte ,&nbsp;Meng Shen ,&nbsp;Xitong Liu","doi":"10.1016/j.desal.2025.118857","DOIUrl":"10.1016/j.desal.2025.118857","url":null,"abstract":"<div><div>Here we study the effects of three types of dopants—chloride (Cl⁻), <em>p</em>-toluene sulfonate (TS, <span><math><msub><mi>C</mi><mn>7</mn></msub><msub><mi>H</mi><mn>7</mn></msub><msub><mi>O</mi><mn>3</mn></msub><msup><mi>S</mi><mo>−</mo></msup></math></span>), and dodecyl sulfate (DS, <span><math><msub><mi>C</mi><mn>12</mn></msub><msub><mi>H</mi><mn>25</mn></msub><msubsup><mi>SO</mi><mn>4</mn><mo>−</mo></msubsup></math></span>)—on the hydrophobicity of the polypyrrole (PPy) modified cation exchange membranes (CEMs) and their selective transport of Li⁺. The modified CEMs are referred to as PPyCl-CEM, PPyTS-CEM and PPyDS-CEM, corresponding to the dopants used. Using membrane capacitive deionization (MCDI), we find that the CEMs modifications by PPyDS or PPyTS exhibit enhanced selective transport of Li⁺ over Ca²⁺. In addition, the selective transport of Li⁺ increases with increasing surface hydrophobicity, with PPyDS-CEM exhibiting the highest hydrophobicity and the greatest enhancement in Li⁺ selectivity —over 60 % improvement in MCDI and a 38-fold increase in the diffusion cell—relative to Ca²⁺. Combining experimental sorption tests and computational molecular dynamics (MD) simulations, we find that while PPyDS modification results in lower relative Li⁺ sorption compared with Ca²⁺, it promotes relative Li⁺ diffusion, leading to enhanced selective transport of Li⁺ over Ca²⁺. The MD simulations further elucidate that both cation dehydration and cation-dopant ion pairing play important roles in the improved relative Li⁺ diffusion.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"609 ","pages":"Article 118857"},"PeriodicalIF":8.3,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy-force coupling in interfacial solar vapor generation: A pathway to sustainable salt management","authors":"Yihong Liu ,&nbsp;Yawei Yang ,&nbsp;Bowen Liu ,&nbsp;Qi Zhao,&nbsp;Yuyao Shen,&nbsp;Mengyuan Qiang,&nbsp;Yong Ma,&nbsp;Wenxiu Que","doi":"10.1016/j.desal.2025.118854","DOIUrl":"10.1016/j.desal.2025.118854","url":null,"abstract":"<div><div>Interfacial solar vapor generation (ISVG) has emerged as a promising approach for sustainable desalination, yet effective salt management remains challenging, particularly in high-salinity conditions. Herein, this review will introduce an energy-force coupling framework to analyze how solar energy is transformed into mechanical forces—such as gravity, capillary action, Marangoni convection, and diffusion—that drive essential functions of salt management: salt resistance for continuous vapor generation, zero-liquid discharge (ZLD) for combined vapor generation and salt extraction, and selective high-value salt (e.g. Lithium) concentration. By investigating capillary action for surface energy conversion, Marangoni-driven convection for gradient-based transport, and diffusion for concentration-driven ion separation, we elucidate the mechanisms through which solar energy sustains clean evaporation surfaces. This process is achieved by the coordinated interplay of multiple forces, enabling precise control of salt crystallization and facilitating targeted recovery of high-value salts. By reframing salt management as a dynamic interplay of solar-driven forces, this perspective provides a foundational approach to designing next-generation desalination systems that extend beyond water recovery to resource extraction, as well as offering transformative insights to guide sustainable desalination technologies aimed at addressing both freshwater and mineral resource needs.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118854"},"PeriodicalIF":8.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Manipulating π electron behavior of graphene for remarkable solar steam generation and salt recovery","authors":"Qiang Tang,&nbsp;Yi-Le Chen,&nbsp;Jia-Wei Zhu,&nbsp;Huan Jin,&nbsp;Ming Xue,&nbsp;Lin Gu,&nbsp;Jing Yang,&nbsp;Qing-Yun Wu","doi":"10.1016/j.desal.2025.118855","DOIUrl":"10.1016/j.desal.2025.118855","url":null,"abstract":"<div><div>Solar steam generation is of interest as a promising and sustainable technology in response to global water scarcity and energy scarcity. Despite great effort is continuously dedicated to exploiting powerful materials and excellent configurations, the synchronous modulation of electron behavior on both the solar absorption and the assembly of photothermal materials is still less well addressed for outstanding solar steam generation. Herein, the π electrons of graphene are finely manipulated by varying the C/O (sp²/sp³) ratio, which further regulates the π-conjugate network on the graphitic plane, and then tunes the 3D self-assembly. A combined experimental and theoretical investigation is firstly conducted on the effects of π electron tuning on the solar absorption and photothermal conversion property of deoxidized graphene oxide (dGO), as well as the solar interfacial evaporation and salt recovery performance of dGO aerogels: 1) dGO with a high C/O ratio exhibits a sizable π–conjugate network, reducing the band gap, leading to a mean solar absorbance as high as 97.6 %; 2) A dGO aerogel π–π self-stacked by dGO nanosheets with a C/O ratio of 4.63 affords the best balance between the water adsorption and heat insulation, yielding an extraordinary evaporation rate of 5.82 kg m⁻² h⁻¹ under one<!--> <!-->sun of irradiation; 3) A “U” shaped dGO aerogel is well designed to recover salt with a rate up to 0.374 kg m⁻² h⁻¹ as well as long–term evaporation performance. This work opens an effective route to design high–efficiency solar interfacial evaporators which especially has vital reference significance for carbonaceous and polymer–based photothermal materials.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118855"},"PeriodicalIF":8.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Poly(aryl piperidine) anion exchange membrane with self-assembled siloxane crosslinked networks for efficient ion separation in alkaline waste treatment via electrodialysis","authors":"Yazhen Jiang ,&nbsp;Tong Mu ,&nbsp;Ning Ding ,&nbsp;Yangke Pan ,&nbsp;Geting Xu ,&nbsp;Junbin Liao ,&nbsp;Edison Huixiang Ang ,&nbsp;Jiangnan Shen","doi":"10.1016/j.desal.2025.118853","DOIUrl":"10.1016/j.desal.2025.118853","url":null,"abstract":"<div><div>In electrodialysis technology applications, anion-exchange membranes (AEMs) have great potential in recovering alkali from industrial wastes and are expected to recover alkali from industrial wastes. In this study, a series of AEMs based on polyarylpiperidines crosslinked with varying ratios of siloxanes were synthesized. Compared to the uncrosslinked PBP AEM and commercial Neosepta AHA, biphenylpiperidine-based AEMs (PBP-CPMTS₄₀ and PBP-CPMTS₆₀) demonstrated superior ion flux, alkali separation performance, and economic efficiency due to their optimized water uptake (WU) and ion exchange capacity (IEC). Notably, PBP-CPMTS₆₀ AEM exhibited optimal water swelling, low membrane resistance (1.98 Ω·cm²), and the highest OH⁻ conductivity (14.1 mS·cm⁻¹) at room temperature. It also demonstrated excellent alkali stability, retaining 89.71 % of its IEC and 85.07 % of its OH⁻ conductivity after 1200 h of exposure to 2 M NaOH at 80 °C. During Cl⁻ and OH⁻ ion separation via electrodialysis, the dilution compartment concentration decreased from 0.40 M to 0.12 M within 180 min, achieving a high current efficiency of 87.21 % and an energy consumption of 2.32 kW·h·kg⁻¹. This study presents a rational siloxane crosslinking strategy to mitigate AEM degradation in alkaline environments, offering significant potential for electrodialysis-based alkali concentration application.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118853"},"PeriodicalIF":8.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-functional tight ultrafiltration membrane constructed from aminoquinone networks for sufficient dye/salt selectivity and bacterial inactivation","authors":"Riri Liu ,&nbsp;Hanna Vanermen ,&nbsp;Jiale Du ,&nbsp;Qin Chen ,&nbsp;Zijian Yu ,&nbsp;Junwei Li ,&nbsp;Pengrui Jin ,&nbsp;Junfeng Zheng ,&nbsp;Alexander Volodin ,&nbsp;Wenyuan Ye ,&nbsp;Raf Dewil ,&nbsp;Ming Xie ,&nbsp;Jiuyang Lin ,&nbsp;Bart Van der Bruggen","doi":"10.1016/j.desal.2025.118842","DOIUrl":"10.1016/j.desal.2025.118842","url":null,"abstract":"<div><div>Membranes used for the treatment of highly saline textile wastewater generally suffer from low dye/salt selectivity and biofouling issues. Herein, the facile assembly of vanillic acid/ε-polylysine-based aminoquinone networks (AQN) on a porous PES substrate is proposed for the construction of a dual-functional tight ultrafiltration membrane with high dye/salt separation efficacy and superior antimicrobial functionality. By regulating the assembly duration, the surface structure and properties (i.e., thickness, roughness, hydrophilicity and pore size) of the composite AQN coating can be precisely tailored. Specifically, the optimized AQN-60 tight ultrafiltration composite membrane (MWCO of 3450 Da) experienced &gt;98.50 % dye rejection and &lt;3.56 % NaCl rejection for various dye/salt mixtures. Additionally, the prepared AQN-60 composite membrane demonstrated stable fractionation performance with an eventual dye rejection of 98.70 % and salt rejection of 3.98 % after 24-h filtration of a reactive blue 2/NaCl mixed solution. Furthermore, the integration of ε-polylysine onto the AQN-60 composite membrane markedly enhanced the antimicrobial ability of the tight ultrafiltration membrane, which showed good inhibition efficiency (98.75 %) against <em>E. coli</em> bacteria.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118842"},"PeriodicalIF":8.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic effects of sulfate and fluoride ions on vaterite production: Influence of major seawater ions","authors":"Sehun Kim ,&nbsp;Yuvaraj Subramanian ,&nbsp;Myoung-Jin Kim","doi":"10.1016/j.desal.2025.118852","DOIUrl":"10.1016/j.desal.2025.118852","url":null,"abstract":"<div><div>Vaterite, the least stable polymorph of CaCO₃, is valued in various industries for its large surface area, solubility, and biocompatibility. However, its synthesis often requires costly methods involving additives, high temperatures, or ultrasonic techniques. Recently, we synthesized small vaterite particles using seawater as an indirect carbonation solvent, though the key seawater components influencing vaterite formation remain unclear. In this study, we explore the effects of key seawater components, specifically SO₄²⁻ and F⁻, on vaterite formation and particle size during an indirect carbonation process. The simultaneous addition of SO₄²⁻ and F⁻ demonstrates a synergistic effect, doubling the vaterite content and halving the particle size compared with when these ions are used individually. As a result, the vaterite content exceeds 98 %, with particle sizes below 2.5 μm, which is comparable with those produced using seawater. This synergy is attributed to their ability to influence the lattice structure of CaCO₃, preventing the recrystallization of vaterite into calcite. Furthermore, F⁻ effectively reduces particle size and enhances vaterite porosity, significantly increasing surface area and pore volume. This method, which uses minimal ion concentrations, offers a cost-effective and scalable alternative to traditional vaterite production techniques. This research highlights the potential for producing fine vaterite with enhanced properties, especially for industrial applications, such as drug delivery systems.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118852"},"PeriodicalIF":8.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat transfer, and Energy, Exergy, Economic, Exergoeconomic, Exergoenvironment, Enviroeconomic (6E) analysis of a modified pyramidal solar still with pulsating heat pipe, PCM and fins: An experimental investigation","authors":"Nagendra Pandey,&nbsp;Y. Naresh","doi":"10.1016/j.desal.2025.118850","DOIUrl":"10.1016/j.desal.2025.118850","url":null,"abstract":"<div><div>The rising global demand for freshwater, driven by population growth and water scarcity, necessitates efficient desalination solutions. This study presents a comprehensive heat transfer analysis and a 6E assessment (Energy, Exergy, Economic, Exergoeconomic, Exergoenvironmental, and Enviroeconomic) of novel solar still (SS) design integrating a Pulsating Heat Pipe (PHP), Phase Change Material (PCM), and fins. Three configurations of pyramidal solar stills (PSS) were assessed through experimental investigations: Case 1 is a Conventional Pyramidal Solar Still (CPSS), Case 2 integrates Phase Change Material (PCM) and fins (MPSS1), and Case 3 incorporates Pulsating Heat Pipe (PHP), PCM, and fins (MPSS2). The yield in Case 3 was 5.42 L/m²/day, which was 35.40 % and 94.96 % higher than the yields of Case 2 and Case 1, respectively. Case 3 also demonstrated an average energy efficiency of 44.10 %, surpassing Case 2 and Case 1 by 23.58 % and 31.51 %, respectively. Additionally, the exergy efficiency of Case 3 was 28.72 % higher than Case 2 and 19.30 % greater than Case 1. The average total heat transfer coefficient for Cases 1, 2, and 3 were 24.54 W/m²-K, 25.23 W/m²-K, and 30.29 W/m²-K, respectively. Economic analysis indicated Cost per Liter (CPL) values of $0.014 for Case 3, which exhibited cost reductions of 14.28 % and 41.33 % compared to Case 2 and Case 1, respectively. Energy production factors for Cases 1, 2, and 3 were 0.89, 0.69, and 0.73 yr⁻¹, respectively. Case 3 achieved the highest savings ($217.5), surpassing Case 2 by 35.07 % and Case 1 by 83.54 %. Its advanced design with PHP, PCM, and fins resulted in the highest energy-economic parameter (22.178 kWh/$). The treated water met potable standards with a pH of 6.98, salinity removal, and reduced TDS (72 mg/L). This study emphasizes that incorporating fins, PCM, and PHP into CPSS enhances water yield, energy efficiency, and economic feasibility while promoting sustainability.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"609 ","pages":"Article 118850"},"PeriodicalIF":8.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermally driven ultrapure water production for water electrolysis – A techno-economic analysis of membrane distillation","authors":"R. Schwantes ,&nbsp;Y. Morales ,&nbsp;E. Pomp,&nbsp;J. Singer ,&nbsp;K. Chavan ,&nbsp;F. Saravia","doi":"10.1016/j.desal.2025.118848","DOIUrl":"10.1016/j.desal.2025.118848","url":null,"abstract":"<div><div>The transition to hydrogen production with renewable energies necessitates ultrapure water (UPW) as a raw material for water electrolysis, which imposes stringent quality and economic demands on water treatment technologies. This study evaluates the techno-economic feasibility of membrane distillation (MD) as an alternative to reverse osmosis (RO) for UPW production. Utilizing waste heat from a 5 MW proton exchange membrane (PEM) electrolyzer, which would otherwise require active cooling to sustain operation of the electrolyzer, the proposed MD system employs permeate gap membrane distillation to treat feedwaters with brackish and seawater salinities (i.e., 5 g NaCl /kg and 34.3 g NaCl/kg, respectively). The study incorporates numerical simulations to analyse system design parameters and energy consumption of MD and RO systems designed to produce 1 t/h of distillate, as well as experimental data on distillate water quality. Results demonstrate that MD systems achieve high-quality distillate (&lt;3 μS/cm) under the tested salinities and at competitive costs. Estimated unit costs per ton of produced distillate for MD range from €2.33 to €2.85 for either brackish or seawater feed at electricity prices of €0.10–€0.40/kWh, while RO costs range from €2.80 to €5.51 under comparable conditions. The presented annual costs also reflect the cost advantage, especially for seawater desalination with MD costs, approx. 40 % lower than RO. MD shows advantages in energy efficiency with thermal energy provided as low-grade heat. This work shows that MD can be a cost- efficient and versatile solution for UPW production powered by PEM electrolyzer waste heat.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118848"},"PeriodicalIF":8.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boron separation performance by adsorption on bimetallic MIL-100 series materials","authors":"Huiqun Ju ,&nbsp;Xue Jiang ,&nbsp;Chengyu Huangfu ,&nbsp;Jiafei Lyu ,&nbsp;Xianghai Guo","doi":"10.1016/j.desal.2025.118846","DOIUrl":"10.1016/j.desal.2025.118846","url":null,"abstract":"<div><div>Metal-organic framework (MOF) materials exhibit excellent boron adsorption and isotope separation abilities, but their mechanisms are still unclear and require additional research. In this study, MIL-100(Fe), which has excellent comprehensive performance in boron adsorption and isotope separation among MOF materials, was selected to systematically investigate its boron adsorption and isotope separation performance. Based on this material, five MIL-100 (Fe³⁺, X²⁺) bimetallic materials were prepared by doping different divalent metal ions, and the changes in the adsorption and separation capacities before and after doping were compared. The influence of different metal doping on adsorption was investigated. It was found that doping metal ions effectively increased the coordination of unsaturated metal sites in the materials, which improved the adsorption process and caused positive and effective isotopic separation. The isotopic separation factor of doping the alkali earth metal ion Ca²⁺ was increased significantly from 1.033 to 1.092.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"608 ","pages":"Article 118846"},"PeriodicalIF":8.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}