Separation and Purification Technology最新文献

{"title":"Simulation-guided design of tunable porous carbons for efficient light hydrocarbon adsorption and methane purification","authors":"Yang Guo,&nbsp;Peixin Wang,&nbsp;Ming Jiang,&nbsp;Bo Liu,&nbsp;Wenji Pi,&nbsp;Te Zhang,&nbsp;Liqing Li","doi":"10.1016/j.seppur.2026.139918","DOIUrl":"10.1016/j.seppur.2026.139918","url":null,"abstract":"<div><div>Efficient adsorption and separation of light hydrocarbons (CH₄, C₂H₄, C₂H₆ and C₃H₈) are crucial for natural gas processing and storage. Herein, we combine molecular simulations with a one-step synthesis strategy to prepare benzimidazole-derived porous carbons with precisely tunable pore structures for targeted hydrocarbon adsorption and separation. Grand Canonical Monte Carlo (GCMC) simulations first identified molecule-specific optimal adsorption pores for CH₄, C₂H₄, and C₃H₈, providing guidance for material design. Subsequently, N, O co-doped porous carbons were synthesized via KOH activation, during which potassium salt formation effectively inhibited precursor sublimation, ensuring uniform carbonization and efficient pore development. By regulating the KOH/benzimidazole ratio and activation temperature, the pore architecture was tailored from ultramicroporous to mesoporous regimes. Among the synthesized materials, BIC-1-700 exhibits the highest C₂H₄ uptake (6.8 mmol/g), whereas BIC-2-900, optimized at a KOH/benzimidazole ratio of 2:1 and 900 °C, combines a high BET surface area of 3458 m²/g with an outstanding C₃H₈ uptake of 12.7 mmol/g at 298 K and 1 bar. Dynamic breakthrough experiments using CH₄/C₃H₈ mixtures with different feed compositions consistently demonstrate preferential CH₄ breakthrough, yielding high-purity CH₄ (&gt;99.9%) prior to C₃H₈ breakthrough. To further evaluate separation performance under more complex feed conditions, ternary CH₄/C₂H₆/C₃H₈ breakthrough experiments consistently show preferential CH₄ elution ahead of C₂H₆ and C₃H₈, enabling effective methane purification with stable performance over five adsorption-regeneration cycles. Further molecular dynamics and density functional theory calculations reveal that preferential C₃H₈ enrichment in confined pores and rapid CH₄ transport through mesopore channels jointly underpin the excellent separation performance. This work provides both theoretical insights and a practical design strategy for developing tunable porous carbons toward targeted light hydrocarbon adsorption and separation.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"416 ","pages":"Article 139918"},"PeriodicalIF":9.1,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148870652","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":"Electrocoagulation treatment for high-silica water: cost and emissions comparison with chemical coagulation and membrane separation","authors":"Lucija Josipovic,&nbsp;Connor Hanrahan,&nbsp;Prashant Sharan","doi":"10.1016/j.seppur.2026.139893","DOIUrl":"10.1016/j.seppur.2026.139893","url":null,"abstract":"<div><div>Elevated level of dissolved silica in cooling-tower water limits achievable cycles of concentration, promotes silica-rich and magnesium-silicate scale formation, and increases makeup-water demand in arid industrial regions. Makeup waters containing approximately 50 mg/L as <span><math><mi>Si</mi><msub><mi>O</mi><mn>2</mn></msub></math></span> can concentrate to approximately 150 mg/L at three cycles of concentration if silica is not removed. Magnesium electrocoagulation (Mg-EC) offers a promising treatment pathway; however, its technical and economic performance is governed by the coupled effects of electrode dissolution, hydroxide precipitation, silica removal, floc formation, and downstream sludge utilization. This study develops a lumped zero-dimensional mechanistic model for silica removal by Mg-EC and couples it to preliminary techno-economic and life-cycle assessments. The model includes current-dependent Faradaic magnesium and hydroxide generation, passivation, super-Faradaic electrode loss for cost estimation, supersaturation-driven <span><math><mi>Mg</mi><msub><mfenced><mi>OH</mi></mfenced><mn>2</mn></msub></math></span> precipitation, Langmuir-Freundlich silica adsorption, co-precipitation, and sweep flocculation. The model was benchmarked against published Mg-EC cooling-tower-blowdown data and reproduced the reported time-dependent trends in silica removal, energy consumption, and electrode consumption. Industrial-scale screening for a 3.5 MW cooling-tower case shows that Mg-EC can achieve substantial silica removal, but that conventional single-pass operation is limited by incomplete utilization of generated <span><math><mi>Mg</mi><msub><mfenced><mi>OH</mi></mfenced><mn>2</mn></msub></math></span>. Increasing current density or electrolysis time improves removal only up to a diminishing-return regime, while electrode consumption, sludge generation, and reagent-associated costs continue to increase. A novel sludge-reuse scenario was proposed to maximize <span><math><mi>Mg</mi><msub><mfenced><mi>OH</mi></mfenced><mn>2</mn></msub></math></span> utilization, thereby reducing the cost of water treatment. Under the base-case assumptions, recycled-sludge Mg-EC reduced annual cost by approximately 9.5% relative to conventional single-pass Mg-EC and reduced greenhouse-gas emissions by 60%. Comparative analysis showed that chemical precipitation remained the lowest-cost and lowest-emission treatment option under base-case conditions, but recycled Mg-EC became competitive with membrane treatment while reducing reliance on externally dosed chemical coagulants. These results identify magnesium hydroxide utilization as the central design bottleneck for Mg-EC silica control.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"416 ","pages":"Article 139893"},"PeriodicalIF":9.1,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148870285","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-resistance and high-efficiency modified metal filter meshes for mine wet dust removal: modification strategies, anti-clogging performance and comprehensive evaluation","authors":"Fanbo Jin, Shuda Hu, Shihang Li, Haonan Luo, Kunkun Tu, Hao Jin, Hui Cheng, Xutong Liu, Shaozhen Wang, Huan Xu","doi":"10.1016/j.seppur.2026.139611","DOIUrl":"https://doi.org/10.1016/j.seppur.2026.139611","url":null,"abstract":"","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"112 1","pages":"139611"},"PeriodicalIF":8.6,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148756721","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":"Ceramic-based graphene oxide/ultrafine activated carbon hybrid oil-water separation membrane","authors":"Anwen Chen ,&nbsp;Dong Zhan ,&nbsp;Razium A. Soomro ,&nbsp;Ning Qiao ,&nbsp;Xiaojie Zhang ,&nbsp;Bin Xu","doi":"10.1016/j.seppur.2026.137006","DOIUrl":"10.1016/j.seppur.2026.137006","url":null,"abstract":"<div><div>Graphene oxide (GO)-based membranes have brought great research interest and wide application prospects in the field of oil-in-water emulsion separation by virtue of their unique properties. However, the rational design of the rough structure of the membrane surface and the exploration of the stability of the prepared membranes are still insufficient, which greatly limits the possibility of their survival in practical use. In this study, GO with larger lamellar size, ultrafine activated carbon (UAC) particles, and polyvinyl alcohol (PVA) as adhesive were compounded to form a membrane on the (3-aminopropyl) triethoxysilane (APTES) pretreated ceramic support by vacuum filtration. The composite membrane exhibits superb oil-repellent properties (underwater oil contact angle up to 162.6°) and very low oil adhesion underwater, while providing better mechanical strength and stability than porous polymer-supported membranes. After the GO sheets cover the UAC particles and form the membrane, the GO sheets generate micron-scale bumps with UAC spatial contours and nanoscale secondary folds due to the bending deformation of the GO sheets. The good combination of these structures endows the membrane with an excellent graded rough surface structure. On the surface of the membrane, it is possible to prepare two rough structures using only one material, the GO sheet. The intercalation of UAC particles resulted in a 72.6-fold increase in pure water flux to 94.38 L·m⁻²·h⁻¹ compared to pure GO membranes, while providing excellent separation performance and resistance to contamination (14.6% flux decline ratio and 95.7% flux recovery ratio while maintaining &gt;99% emulsion removal). Moreover, adding PVA provided better mechanical strength and anti-swelling properties for the membrane, and the ceramic support pretreated with APTES had better bonding strength with the GO laminate. This study inspires the surface microscopic design of GO-based oil-in-water emulsion separation membranes and new ideas for preparing GO-based membranes with practical prospects, high throughput, and good antifouling properties.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137006"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172300","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 effect of filler sieving and polymer rigidification for selective C2H4/C2H6 separation","authors":"Linxuan Han,&nbsp;Yutao Liu,&nbsp;Dongxiao Yang,&nbsp;Jian Tan,&nbsp;Chao Zhi,&nbsp;Yang Chen,&nbsp;Jinping Li,&nbsp;Libo Li","doi":"10.1016/j.seppur.2026.137196","DOIUrl":"10.1016/j.seppur.2026.137196","url":null,"abstract":"<div><div>Membrane separation technology on account of low energy consumption shows great potential for energy-intensive C₂H₄/C₂H₆ separation. Mixed matrix membranes (MMMs), fabricated by embedding sieving functional fillers within polymer, are expected to improve the separation performance of conventional polymer. However, most MMMs fail to deliver the anticipated gains in C₂H₄/C₂H₆ separation selectivity. Sieving fillers typically have ultra-small pores that may impose higher entry barriers on polarizable hydrocarbons than the dynamic free-volume elements of polymers. Thus, focus should extend beyond the filler itself to the structural variations of the polymer matrix upon filler incorporation. In this work, we incorporated an C₂H₄/C₂H₆ sieving metal-organic framework material, Cu(BF₄)₂(4-DPDS)₂, into 6FDA-DAM to fabricate MMMs for C₂H₄/C₂H₆ separation. It is found that the size sieving ability of Cu(BF₄)₂(4-DPDS)₂ contributes partially to the improved C₂H₄/C₂H₆ diffusion selectivity. Additionally, the rigidification of 6FDA-DAM molecular chains induced by the strong interfacial interaction markedly hinders C₂H₆ transport. These two factors act synergistically to effectively enhance the C₂H₄/C₂H₆ diffusion selectivity. For an equimolar gas mixture, the filler-optimized MMMs exhibit a C₂H₄ permeability of 13.35 barrer and a C₂H₄/C₂H₆ selectivity of 7.02, exceeding the separation upper bound reported in 2013 and representing the highest selectivity reported for sieving-filler-based MMMs. This work provides valuable insights for the rational design of high-performance MMMs for ethylene/ethane separation.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137196"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172352","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":"Morphological impact of Ni-based electrodes (solid Ni sheets vs. Ni-assisted W meshes) on Lu(III) electrochemical behavior and efficient extraction mechanism in LiCl-KCl molten salts","authors":"Jiacheng Li ,&nbsp;Ji Wang ,&nbsp;Peidong He ,&nbsp;Junyang Shu ,&nbsp;Jinshuo Yang ,&nbsp;Wenlong Li ,&nbsp;Xiangbiao Yin ,&nbsp;Deqian Zeng ,&nbsp;Qiang Wu ,&nbsp;Yuezhou Wei","doi":"10.1016/j.seppur.2026.137150","DOIUrl":"10.1016/j.seppur.2026.137150","url":null,"abstract":"<div><div>Spent nuclear fuel dry reprocessing demands efficient recovery of valuable rare-earth elements, yet its extraction from complex LiCl-KCl molten salt matrices remains challenging. This study investigates the electrochemical behaviors and underlying mechanism of Lu(III) in LiCl-KCl molten salts, with a focus on its efficient extraction via Ni-based systems. The electrochemical behavior of Lu(III) on W and Ni-assisted W electrodes using various electrochemical methods was studied. On W electrodes, cyclic voltammetry (CV), square wave voltammetry (SWV), and chronopotentiometry (CP) measurements yielded the diffusion coefficient of Lu(III) in the salt, while comparison with the Scharifker-Hill model confirmed that Lu nucleation follows a three-dimensional instantaneous mechanism, and thermodynamic data of Lu(III)/Lu(0) were calculated. For Ni-assisted W electrodes, different techniques identified Lu<img>Ni intermetallic compounds, with subsequent computation of the thermodynamic parameters of Lu<img>Ni alloys. A comparative extraction efficiency of Lu across cathode configurations showed that the Ni-assisted W electrodes exhibited the highest efficiency, attributed to their larger specific surface area. XRD and SEM-EDS analysis were conducted on the alloy products.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137150"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172350","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":"Advancements in solar still performance enhancement through heat pipes, evacuated tubes, and pulsating heat pipes: a comprehensive review","authors":"Jay R. Patel,&nbsp;Y. Naresh","doi":"10.1016/j.seppur.2026.137159","DOIUrl":"10.1016/j.seppur.2026.137159","url":null,"abstract":"<div><div>Addressing water scarcity and improving the quality of life in arid and semi-arid regions necessitates the development of sustainable freshwater production technologies. Among them, solar stills offer a simple and eco-friendly solution by converting saline water into potable water using only solar radiation. However, their productivity remains significantly lower compared to conventional desalination methods, prompting extensive research into performance enhancement strategies. Various augmentation techniques—including nanofluids, phase change materials (PCMs), sensible heat storage, and heat pipes—have been investigated to overcome these limitations. The novelty of this review lies in its comprehensive bibliometric and in-depth technical analysis of heat pipe-assisted solar stills over a 25-year period (2000–2025), integrating both evacuated tube and pulsating heat pipe configurations. Unlike earlier reviews, this study quantitatively correlates research trends with system-level advancements—particularly in energy storage, phase change material integration, and hybrid enhancement techniques—to establish a clear roadmap for the next generation of high-performance solar desalination systems. The analysis highlights year-wise publication growth, geographical and journal-wise contributions, and keyword co-occurrence networks, where emerging themes include energy storage, heat exchanger, water depth, and phase change material. Recent advances in evacuated tube-based collectors and their performance under varying operating parameters are systematically examined, along with detailed discussions on pulsating heat pipe (PHP)-integrated solar stills. Furthermore, the review outlines the comparative benefits, limitations, and challenges of these technologies, offering critical insights to guide the development of next-generation solar desalination systems with improved efficiency, reliability, and economic feasibility.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137159"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172414","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":"Co-ZIF sacrificial templates precisely fabricate MCo-LDH (M = Ni/Cu): Bimetallic synergy regulates PMS activation for synergistic As(III) oxidation-adsorption in complex waters","authors":"Boyu Du,&nbsp;Xianjin Qi,&nbsp;Yongkui Li,&nbsp;Yijin Liu,&nbsp;Jiarui Xiao,&nbsp;Nianyi Zao,&nbsp;Haifeng Chen,&nbsp;Yonglei Bu","doi":"10.1016/j.seppur.2026.137235","DOIUrl":"10.1016/j.seppur.2026.137235","url":null,"abstract":"<div><div>Developing novel catalysts for highly efficient activation of PMS is crucial for the purification of arsenic-containing wastewater. In this study, a Co-ZIF sacrificial template was employed to construct NiCo-LDH and CuCo-LDH catalysts with hollow nanocage and nanoflower structures respectively, via Ni²⁺/Cu²⁺ directional etching. The effects of Ni²⁺/Cu²⁺ doping levels on the catalyst's structure, composition, and performance were systematically investigated, identifying the optimal metal doping ratio as Ni²⁺ (1.50 mmol)/Cu²⁺ (1.25 mmol). More importantly, both NiCo-LDH and CuCo-LDH catalysts demonstrated outstanding PMS activation capabilities, removing 98.80% and 97.37% of total arsenic within 600 s, with total arsenic uptakes reaching 1500.00 mg/g and 1415.00 mg/g (following 24 h adsorption equilibrium), respectively. Mechanistic analyses indicate that NiCo-LDH continuously activates PMS through the Ni²⁺/Ni³⁺ and Co³⁺/Co²⁺ redox cycles, generating radicals (SO₄^•− and ^•OH) that participate in the oxidation process of As(III). In contrast, CuCo-LDH promotes radical generation through Cu²⁺/Cu⁺ cycles, while also suggesting the formation of non-radical species (¹O₂), thereby establishing a potential synergistic “radical+non-radical” oxidation pathway. As(<em>V</em>) generated through oxidation in both systems is removed through coordination exchange (M − O − As), ion exchange (interlayer NO₃⁻ substitution), and electrostatic attraction. Additionally, both systems exhibit excellent adaptability to a wide range of concentrations in actual wastewater. After treating low-concentration arsenic-containing wastewater (simulating groundwater), the residual arsenic concentration was below 10.00 μg/L, significantly lower than drinking water standards. In summary, this study proposes a novel strategy for treating arsenic-contaminated wastewater using a Co-ZIF derived LDH to activate PMS, demonstrating broad application prospects in practical arsenic pollution control.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137235"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172493","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":"Sustainable fabrication of cellulose beads supported CoFe2O4 and ag-CoFe2O4 catalysts for enhanced tetracycline degradation via PMS activation","authors":"Brahim El Allaoui ,&nbsp;Hanane Benzeid ,&nbsp;Ali Ouhssain ,&nbsp;Issam Meftah Kadmiri ,&nbsp;Nadia Zari ,&nbsp;Abou el kacem Qaiss ,&nbsp;Tao Wu ,&nbsp;Cheng Heng Pang ,&nbsp;Rachid Bouhfid","doi":"10.1016/j.seppur.2026.137119","DOIUrl":"10.1016/j.seppur.2026.137119","url":null,"abstract":"<div><div>This study presents a heterogeneous advanced oxidation process (AOP) for antibiotic removal using fibrous cellulose beads (CB) as sustainable catalyst supports. The CB were fabricated from biomass through a green, mechanical approach that avoids cellulose dissolution, preserving their native fibrous structure. Two catalysts, CoFe₂O₄@CB and Ag-CoFe₂O₄@CB, were synthesized via co-precipitation and in situ silver doping. Structural analyses confirmed the spinel CoFe₂O₄ phase, successful Ag incorporation, uniform nanoparticle dispersion, and strong interfacial coupling involving mixed-valence Co/Fe species, Ag-related surface species, and multiple oxygen environments. Under identical optimal conditions identified by Response Surface Methodology (RSM) using a Box–Behnken Design (BBD) (0.40 g L⁻¹ catalyst, 0.50 g L⁻¹ peroxymonosulfate (PMS), 20 mg L⁻¹ tetracycline (TC), 50 min), Ag-CoFe₂O₄@CB achieved 96.18% TC degradation with a higher apparent pseudo-first-order rate constant (k = 0.0690 min⁻¹) than CoFe₂O₄@CB (93.35%, k = 0.0568 min⁻¹), corresponding to ∼43% lower residual TC after 50 min. The enhancement is attributed to Ag-mediated promotion of ROS generation and interfacial electron-transfer processes, while also imparting rapid antibacterial activity against <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>. The fibrous CB architecture further improved catalyst stability, reusability, and mass transfer. The dissolution-free fibrous CB platform enables a scalable, bio-based, and multifunctional catalyst architecture for PMS-driven antibiotic abatement and microbial control in water treatment.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137119"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172419","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":"Bio-metal-organic framework with Nano-window traps for ultra-selective thorium separation","authors":"Maroof Ahmad Khan ,&nbsp;Shaohui Huang ,&nbsp;Xinfeng Du,&nbsp;Yongjie Yang,&nbsp;Yan Li,&nbsp;Yihui Yuan,&nbsp;Ning Wang","doi":"10.1016/j.seppur.2026.137179","DOIUrl":"10.1016/j.seppur.2026.137179","url":null,"abstract":"<div><div>Selective separation of Th(IV) from chemically similar actinides and rare-earth ions remains a critical barrier to advancing thorium-based nuclear technologies. Here we report a bio-derived dual-ligand MOF platform in which uridine triphosphate and auxiliary N-donor linkers cooperatively assemble O/N-rich nano-window traps that enable precise Th(IV) discrimination. The engineered pore architecture enhances site accessibility, while confined coordination environments promote strong inner-sphere Th-O/N binding and adsorption-induced electronic reorganization. The nano-window confinement and electronic coupling govern precise Th(IV) discrimination. These synergistic structural and mechanistic features yield exceptional selectivity against 17 competing ions as well as high capacity of 553 mg g⁻¹ at pH 3.0. Our findings establish a rational strategy for designing biologically inspired MOFs capable of robust, high-fidelity Th(IV) capture, offering a viable route toward sustainable nuclear-fuel processing and radionuclide remediation.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"392 ","pages":"Article 137179"},"PeriodicalIF":9.0,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172558","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}