Separation and Purification Technology最新文献

{"title":"Electrocatalytic removal of Hexafluoropropylene oxide dimer acid (HFPO-DA) in water: “Buttering on both Sides”","authors":"Boxuan Yang ,&nbsp;Yuxin Zeng ,&nbsp;Tao Guo ,&nbsp;Yuanzhong Lin ,&nbsp;Lifeng Yin ,&nbsp;Qingsong Hua","doi":"10.1016/j.seppur.2025.133001","DOIUrl":"10.1016/j.seppur.2025.133001","url":null,"abstract":"<div><div>Hexafluoropropylene oxide dimer acid (HFPO-DA), an emerging persistent pollutant, has been prevalently utilized as an alternative to perfluorooctanoic acid (PFOA). Analogous to PFOA, HFPO − DA presents remarkable resistance against degradation by conventional technologies. In this study, we prepared Ce doped PbO₂ anode (Ce-PbO₂) and paired it with cathode to form redox system for the degradation of HFPO-DA in water. The results showed that the degradation rate of HFPO-DA over Ce-PbO₂ was as high as 1.67 × 10⁻² min⁻¹, much higher than that of Boron-doped diamond electrode (BDD, 6.84 × 10^–3 min⁻¹). The Ce-PbO₂ anode also has the theoretical lifetime as high as 82.7 years. Free radical quenching experiments indicated that both reactive oxygen species (ROS) and reductive radicals contributed to the degradation of HFPO-DA. These degradation reactions start from a direct electron transfer, followed by electroreduction and a series of free radical reactions including decarboxylation, ether bond cleavage, and the “4A” processes (generation of Alkyl radicals, Alcohols, Acyl fluorides, and Acids in sequence) until it is decomposed into small molecules. Meanwhile, new intermediates (CF₃CF₂CF₂OCF₃CH•) generated by cathodic H• are dominating the reductive reaction during the electrochemical process. This “buttering bread on both sides” redox mechanism deepens the understanding of the degradation process of HFPO-DA and provides an efficient treatment strategy.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 133001"},"PeriodicalIF":8.1,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827262","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":"The adsorption-desorption-regeneration pathway to a circular economy: The role of waste-derived adsorbents on chromium removal","authors":"Despina A. Gkika ,&nbsp;Athanasia K. Tolkou ,&nbsp;Ioannis A. Katsoyiannis ,&nbsp;George Z. Kyzas","doi":"10.1016/j.seppur.2025.132996","DOIUrl":"10.1016/j.seppur.2025.132996","url":null,"abstract":"<div><div>Considering the vital role of water, the need to enhance and maintain its quality is increasingly crucial. Chromium predominantly exists in hexavalent and trivalent forms (Cr(VI) and Cr(III)). The primary environmental concern stems from their synthetic and persistent nature, which contributes to toxicity and adverse effects on the proper functioning of vital organs. Among the various removal techniques explored in the literature, adsorption is considered superior due to its minimal use of chemicals. In recent years, researchers have increasingly turned to waste materials due to their potential to convert biomass-based waste into valuable products. This review compiles an extensive list of low-cost adsorbents derived from various waste materials. The results indicated that among the low-cost agro-industrial residues tested for hexavalent chromium removal, Olive leaves Chemlali pruning waste showed the highest adsorption efficiency (99.98 %), followed by Maize (Zea mays L) and Neolamarckia cadamba wood, with uptake capacities of 277.57 mg/g and 86.95 mg/g, respectively, at pH 5 and 4. Desorption efficiencies were high. It was found that the highest desorption efficiencies obtained by NaOH. NaOH has achieved good desorption efficiencies of 96.22 % and &gt; 99.74 % for some materials. Additionally, the costs of various waste-derived adsorbents were compared, with activated carbon produced from spent coffee grounds emerging as a particularly cost-effective option 14.12$/kg relative to other alternatives. A key research gap emerges from the high cost of waste-based adsorbents. From a circular economy perspective, a crucial finding is that significant economic value can be derived from repurposing waste adsorbents.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132996"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823144","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":"Corrigendum to “COF-5/Pebax mixed-matrix membranes with enhanced CO2 removal ability for ECCO2R system” [Sep. Purif. Technol. 358 (2025) 130399]","authors":"Ting He, Shanshan Zhang, Yang Zhu, Jiangwei Chen, Xiaoyun Wang, Qingguo Li, Rizhi Chen, Wenbo Pei, Xin Chen, Haibao Duan, Zhaoliang Cui","doi":"10.1016/j.seppur.2025.132867","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.132867","url":null,"abstract":"The authors regret that a wrong picture for <span><span>Fig. 12</span></span>(d) was used due to our mistake, when assembling pictures. We attach the revised assembling figure as follow.<figure><span><img alt=\"\" aria-describedby=\"cn0005\" height=\"369\" src=\"https://ars.els-cdn.com/content/image/1-s2.0-S1383586625014649-gr1.jpg\"/><ol><li><span><span>Download: <span>Download high-res image (263KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span><span><span><p><span>Fig. 12</span>. (a) The CO₂-removal module in the blood circulation system; (b) digital photos of CO₂-removal modules after normal saline cleaning; (c) thrombus dry weight comparison; (d) digital photos of thrombus on the surface of membrane fabrics (Left: PMP membrane fabrics; Right: COF-5/Peabx-1657 MMM fabrics).</p></span></span></figure>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"13 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823152","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":"Low-temperature upcycling of waste polyethylene terephthalate into fuel additives over diffusion-enhanced hollow Ru/ZSM-5","authors":"Huiyu Liu,&nbsp;Chengyu Li,&nbsp;Rui Shan,&nbsp;Jun Zhang,&nbsp;Haoran Yuan,&nbsp;Yong Chen","doi":"10.1016/j.seppur.2025.132971","DOIUrl":"10.1016/j.seppur.2025.132971","url":null,"abstract":"<div><div>The growing accumulation of waste polyethylene terephthalate (PET) has raised great concern about its effective upcycling. Catalytic fast pyrolysis is a promising method for selectively upcycling of waste PET into aromatics. However, the high temperature and poor mass transfer performance remain considerably challenging. In this research, a diffusion-enhanced hollow ZSM-5 catalyst with Ru modification was designed for low-temperature valorization of waste PET into aromatics. Ru species significantly enhanced the primary depolymerization of long-chain polymers by generating abundant Lewis acid sites, which markedly increased the aromatics content. Additionally, the mesopore-rich structure formed after Ru-modification improved diffusion capacity of products effectively. The existing of active Ru⁰ species was beneficial to the hydro-upgrading of oxygen-containing intermediates, therefore monocyclic aromatic hydrocarbons (MAHs) content and hydrogen atom utilization increased to a great extent. More gratifyingly, the pyrolysis temperature for preparing aromatics from waste PET was obviously lowered, probably due to the synergistic effect of diffusion-enhanced structure and Ru modification. Ru/ZH exhibited higher aromatics yield of 46.4 wt% with selectivity of 95.3 % at 500 °C, resulting in a significant mass yield increase of 93.1 % compared to unmodified hollow ZSM-5 (24.0 wt%). Finally, the plausible pathway for PET-to-aromatics <em>via</em> catalytic fast pyrolysis over Ru/ZH was proposed.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132971"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823143","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-anchoring mechanism of amide-carboxyl groups enables activator-free flotation separation of spodumene from feldspar","authors":"Xunlong Cheng ,&nbsp;Xuran Ding ,&nbsp;Jun Wang ,&nbsp;Shuai Wang ,&nbsp;Hong Zhong ,&nbsp;Junhui Wang ,&nbsp;Changzheng Wang ,&nbsp;Zhanfang Cao ,&nbsp;Xin Ma","doi":"10.1016/j.seppur.2025.132985","DOIUrl":"10.1016/j.seppur.2025.132985","url":null,"abstract":"<div><div>To address the challenge of flotation separation between spodumene and aluminosilicate minerals, this work synthesized a long-chain carboxylic acid surfactant featuring amide groups, N-Oleoylglycine, as a high-performance collector. Experimental results demonstrate that N-Oleoylglycine exhibits significantly improved collecting power for spodumene compared to conventional sodium oleate, along with superior selectivity in distinguishing spodumene from feldspar. Under optimized conditions (5 × 10⁻⁴ mol/L concentration, pH 7.0), N-Oleoylglycine achieved 89.39% flotation recovery for spodumene, contrasted with onlymerely 9.78% feldspar, highlighting its exceptional separation efficacy. Nuclear magnetic resonance (NMR) analyses reveal that the deprotonated amide nitrogen coordinated with Al ions on spodumene surfaces. Density functional theory (DFT) calculations further identify the amide and carboxyl groups as the primary functional groups responsible for its collector properties. DFT calculations also predict that in the adsorption configuration of N-Oleoylglycine with Al ions, the Al ions form complexes with the N atom of the amide group and two carbonyl oxygen atoms, respectively Multiple characterization techniques — including contact angle measurements, Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS) analysis — collectively substantiated that N-Oleoylglycine achieves selective adsorption on spodumene through synergistic interactions between its amide and carboxyl moieties. Notably, the self-assembly capability of amide groups through intermolecular hydrogen bonds enables ordered collector molecular arrangement on mineral surfaces, suggesting potential for advancing mineral separation technologies.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132985"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823146","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":"Investigation on a single-step integrated CO2 absorption-mineralization process of Ca-rich purified dust coupled with binary amine mixed solution at low temperature","authors":"Yibin Wang,&nbsp;Yanjie Liu,&nbsp;Tianming Yin,&nbsp;Jingwu Feng,&nbsp;Chi Lin,&nbsp;Houzhang Tan","doi":"10.1016/j.seppur.2025.132942","DOIUrl":"10.1016/j.seppur.2025.132942","url":null,"abstract":"<div><div>The integrated CO₂ absorption-mineralization (IAM) process has been recognized as one of the most promising carbon capture technologies, but its reaction pathway and process stability for any one alkaline solid waste still worthy to be studied. This work mainly explored the effects of binary amine solvent mixing ratio, reaction time and ash dosage on a single-step IAM process of Ca-rich purified dust (PD), and to evaluate the cyclic performance of this process. The results showed that the amine mixed solution composed of 1.5 mol/L monoethanolamine (MEA) and 1.5 mol/L dimethylethanolamine (DMEA), performed well in terms of liquid-based CO₂ loading (0.933 mol/L), CO₂ sequestration capacity (246.21 g/kg), and CO₂ mineralization efficiency (35.97 %). All the mineralized products existed as calcite CaCO₃ in the single MEA or DMEA solution with 3 mol/L, while the formation of metastable vaterite CaCO₃ was more favoured in the MEA-DMEA binary amine. The vaterite CaCO₃ started to be formed in mineralized products after single-step IAM process lasted for 40 min at the optimal amine ratio. In-situ regeneration and reusing of MEA-DMEA solvents were proved to be feasible. In comparison with fresh solvent, CO₂ sequestration capacity of PD in recycled solvent was reduced by about 26.03 % at the fifth cycle under same mineralization condition.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132942"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823139","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":"Deep removal the irreversible contaminants of N-MnOx@PVDF membrane using in-situ coupling catalyzed ozonation","authors":"Caiyi Jiang ,&nbsp;Peng Tang ,&nbsp;Xiaolin Shi ,&nbsp;Li Yang ,&nbsp;Xingyong Liu ,&nbsp;Bo Xing ,&nbsp;Guo Yang ,&nbsp;Yang Luo ,&nbsp;Dongzheng Wang ,&nbsp;Xiaoyu Zhao","doi":"10.1016/j.seppur.2025.132880","DOIUrl":"10.1016/j.seppur.2025.132880","url":null,"abstract":"<div><div>Due to high efficiency and durability, Polyvinylidene Fluoride (PVDF) membranes are promising for their application in wastewater purification. However, they still inevitably face the challenge of membrane clogging problem, restricting separation and anti-fouling performance. Herein, a novel N-MnO_x@PVDF membrane with high catalytic ozonation ability was synthesized using the blending non-solvent-induced reverse transfer method, evidenced by X-ray diffraction, Fourier transform infrared spectrometer, and X-ray photoelectron spectroscopy. Compared with pristine PVDF, N-MnO_x@PVDF has better hydrophilicity and reasonable pore structure, resulting in higher permeability and anti-fouling properties. After in-situ catalytic ozonation cleaning, the Flux Recovery Ratio (<em>FRR</em>) increases from 72.1% to 99.8%, and the irreversible pollution rate (<em>R</em>_ir) decreases from 31.9% to 0.13%. Meanwhile, the high stability and reusability can be demonstrated from high Total Organic Carbon (TOC) removal efficiency of humic acid (HA, 93%), high <em>FRR</em> (94%), and low <em>R</em>_ir (4.3%) after consecutive cycles filtration experiments. In addition, further mechanistic insights are verified by 3D-excitation Emission Matrices (EEM) and Electron Paramagnetic Resonance (EPR) characterization, demonstrating that the removal of irreversible contaminants can be mainly ascribed to indirect oxidation of ¹O₂, and their possible generation pathway is also proposed. This study provides valuable insights into the development of advanced antifouling membranes.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132880"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823147","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":"Facile fabrication of ceramic tight ultrafiltration membrane with high permeability for rapid separation of dye molecules","authors":"Yulong Yang, Huan Yu, Zhiwen Hu, Ruiqiang Yang, Shengyin Tang, Tianhao Tang, Xixi Chen, Qikun Wang, Yongqing Wang, Qibing Chang","doi":"10.1016/j.seppur.2025.132945","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.132945","url":null,"abstract":"Ceramic tight ultrafiltration membrane overcomes the bottleneck of large-scale application in the field of fine separation if the sol–gel route achieves the prepared membrane with a simpler process, narrow pore-size distribution, high water permeance, and structure stability. In this work, a novel ceramic tight ultrafiltration membrane was proposed using the sol–gel method with a high concentration of alumina sol. The prepared ceramic tight ultrafiltration membrane only requires a one-step dip-coating process, saving the fabrication cost while maintaining a high performance. Moreover, the properties and concentration of alumina sol, dip-coating times, membrane microstructure, separation performance, and application stability in acids and alkaline solutions were systematically investigated. The optimized membrane was fabricated by the process of 1.5 mol/L alumina sol, once dip-coating for 8 s, and sintering at 600 °C, resulting in a membrane thickness of 350 nm, high permeability of 150 L/m²·h·bar, an average pore size of 6 nm with narrow pore-size distribution, and high removal rate for dye molecules (98.7 % for Coomassie Brilliant Blue). The long-term filtration of 720 min and different pH solution corrosion demonstrate that the ceramic tight ultrafiltration membrane obtained a superior separation performance and application stability. This study presents a facile method for the fabrication of a high-performance ceramic tight ultrafiltration membrane by a one-step dip-coating process using a high-concentration sol, presenting a practical application potential in dye wastewater treatment and other fine separation fields.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"16 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823141","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":"Biological activity assessment and water deflouridation application of glutaraldehyde crosslinked chitosan-TiO2 composite: A conjugated experimental and theoretical insights","authors":"Rachid EL Kaim Billah ,&nbsp;Mohammadi Ahrouch ,&nbsp;Lahoucine Bahsis ,&nbsp;Noura Aflak ,&nbsp;Zineb Azoubi ,&nbsp;Hicham Majdoubi ,&nbsp;Mounia Achak ,&nbsp;Youness Abdellaoui ,&nbsp;Moonis Ali Khan","doi":"10.1016/j.seppur.2025.132984","DOIUrl":"10.1016/j.seppur.2025.132984","url":null,"abstract":"<div><div>Due to detrimental health effects, fluoride (F^-) contamination in drinking water has become a global concern. Herein, the adsorption of F^- ions on synthesized glutaraldehyde cross-linked chitosan (Cs) and titanium dioxide (TiO₂) (Cs-Gluta-TiO₂) composite was investigated through batch-scale experiments. The experimental parameters such as pH, contact time, initial F^- concentration, and adsorbent dosage were studied and optimized. Furthermore, Langmuir and Redlich–Peterson isotherm models perfectly describe the adsorption equilibrium, with maximum monolayer adsorption capacities of 75 mg/g and 45 mg/g on Cs-Gluta-TiO₂ and Cs-Gluta, respectively. Results revealed that under optimized conditions Cs-Gluta-TiO₂ exhibits superior adsorption performance than Cs-Gluta. Kinetic study results indicate that PSO model was most suitable in describing F⁻ adsorption on both the adsorbents, suggesting that the retention process was primarily governed by chemisorption. Thermodynamically, F⁻ adsorption was feasible, spontaneous, and endothermic. The adsorption mechanism, elucidated through XPS analysis and DFT calculations, confirmed that electrostatic interactions, surface complexation, and hydrogen bonding were the major driving forces during F^- adsorption. Additionally, the material showed excellent reusability and stability, making it a promising candidate for practical water treatment applications. The antibacterial activity and molecular docking studies demonstrated its potential in preventing drug resistance bacteria with score energy (E_score) ranging between – 9.56 and – 6.96 kcal/mol. Thus, this research contributes to the development of sustainable and effective strategies for F^- removal, addressing the growing concern over F^- contamination in water resources. Theoretical analysis supported the experimental findings, validating the composite’s potential as a reliable solution for water purification.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132984"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823153","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":"Ultra-high salt-resistant eggplant carbon evaporator: Evaporation performance and salt-resistance mechanism","authors":"Lele Li ,&nbsp;Qinqin Yang ,&nbsp;Xianhong Zheng ,&nbsp;Lei Zhou ,&nbsp;Siew Chun Low ,&nbsp;Jianghui Zhao ,&nbsp;Zhi Liu","doi":"10.1016/j.seppur.2025.132974","DOIUrl":"10.1016/j.seppur.2025.132974","url":null,"abstract":"<div><div>The coupling of salt resistance and high evaporation performance for sustainable clean water production has long posed a challenge in high-salinity water evaporation. Herein, biomass eggplant carbon (EC) aerogel was developed combining the advantages of ultra-high salt resistance and high evaporation rates. The EC aerogel achieved an evaporation rate of 1.60 kg·m⁻²·h⁻¹ when evaporating 25 wt% saline water over a duration of 600 min under one sun irradiation, demonstrating both high evaporation performance and outstanding salt resistance. The experimental and numerical simulation results confirmed the ultra-high salt resistance attributed to: (1) the rapid water transport rates (21 mm·s⁻¹ within 1 s and 7.5 mm·s⁻¹ within 5 s) induced by the strong capillary action, which maintained the salt concentration at a lower level on the aerogel surface, (2) the fast water backflow capacity carried away the concentrated salt solution close to the EC surface to bulk water in a timely manner, and (3) the highly porous, interconnected millimeter-sized holes in the aerogel shortened the ion transport path, thereby enhancing the water supply/backflow properties. The rapid water replenishment and fast water backflow capacities synergistically kept the saline water on the EC surface below the salt precipitation concentration, endowing the EC aerogel with superior salt-resistant properties. This study contributes to a deeper understanding of high salt-resistant properties and inspires materials engineering with rapid water supply/backflow, as well as their practical applications in clean water generation from hypersaline water.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"368 ","pages":"Article 132974"},"PeriodicalIF":8.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824957","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}