Desalination最新文献

{"title":"Integrating ZIF-90/zeolite-derived oxides and multifunctional polymers for multi-interaction adsorption of Pb2+ in wastewater","authors":"Van-Doan Nguyen ,&nbsp;Thi Giang Nguyen ,&nbsp;Thi Phuong Nguyen ,&nbsp;Anh-Tuan Vu ,&nbsp;The-Anh Luu ,&nbsp;Van-Giang Le","doi":"10.1016/j.desal.2025.119821","DOIUrl":"10.1016/j.desal.2025.119821","url":null,"abstract":"<div><div>Currently, various carbon-, metal oxide-, and biopolymer-based adsorbents have been developed for heavy metal remediation. Nevertheless, most still exhibit low adsorption capacity, poor stability in complex ionic environments, and limited regeneration ability. This limitation underscores the urgent need to design hybrid adsorbents that combine the high chemical selectivity of biopolymers with the structural robustness of inorganic frameworks. In this study, a novel ZZO/A-D composite was fabricated by integrating an oxide–zeolite framework derived from ZIF-90 with a diethylenetriaminepentaacetic (DTPA)-modified alginate polymer, forming a hierarchical capillary network enriched with –COOH, –NH, and –OH functional groups capable of strong complexation with Pb²⁺. Under optimal conditions (pH = 6, Pb²⁺ amount of 200 mg/L, ZZO/A-D mass 0.1 g/L, and temperature 30 °C), ZZO/A-D exhibited an exceptionally high maximum uptake capability (q_max) of 1428.76 mg/g. The uptake process followed the Langmuir (R² = 0.998) and second-order kinetics (R² = 0.999), confirming the dominance of chemisorption via coordination and ion-exchange mechanisms. The presence of coexisting cations inhibited Pb²⁺ removal in the order K⁺ &gt; Na⁺ &gt; Mg²⁺ &gt; Ca²⁺, whereas the anions SO₄²⁻, CO₃²⁻, and NO₃⁻ caused inhibition levels of 90.45, 85.43, and 75.34 %, respectively. Moreover, the material maintained over 80 % removal efficiency after five adsorption–desorption cycles, demonstrating excellent reusability and structural integrity. With its superior adsorption performance, high stability, and strong tolerance to competing ions, ZZO/A-D offers a promising strategy for developing next-generation oxide–biopolymer hybrid adsorbents for the efficient decotamination of heavy metal-contaminated wastewater.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119821"},"PeriodicalIF":9.8,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882999","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":"Sulfonated poly(fluorenylene alkylene)-based cation-exchange ionomers enabling high-performance and stable capacitive deionization","authors":"Tao Jiang ,&nbsp;Yuhan Du ,&nbsp;Chenxi Wang ,&nbsp;Xinghao Gao ,&nbsp;Qianxi Li ,&nbsp;Yingsheng Xu ,&nbsp;Haibing Wei ,&nbsp;Hongjian Zhou","doi":"10.1016/j.desal.2025.119817","DOIUrl":"10.1016/j.desal.2025.119817","url":null,"abstract":"<div><div>Capacitive deionization (CDI) has gained attention as a promising desalination approach due to its simple operation and energy-saving advantages. This study demonstrates the novel preparation of sulfonated poly(fluorenylene alkylene) (SPFA) cation-exchange ionomers via superacid-catalyzed Friedel-Crafts polycondensation, specifically engineered for in-situ coated membrane capacitive deionization (MCDI) cathode systems. The optimized SPFA-70 ionomer exhibited exceptional ionic transport properties, achieving a Na⁺ conductivity of 43.1 mS cm⁻¹ under fully hydrated conditions. This superior performance originates from the well-balanced combination of high ion exchange capacity, substantial fractional free volume (FFV = 26.3 %), and controlled water uptake, which synergistically enhance ion transport pathways. Remarkably, the SPFA-50 based MCDI device demonstrated excellent cycling stability, maintaining a consistent salt adsorption capacity of 19.1 mg g⁻¹ throughout 1000 charge-discharge cycles without any observable capacity degradation. Our findings offer a promising strategy for designing high-performance ion exchange materials through rational molecular engineering. This synthesis strategy facilitates scalable MCDI electrode production using an eco-friendly, low-cost, and streamlined process, potentially addressing critical challenges in CDI technology commercialization.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119817"},"PeriodicalIF":9.8,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939837","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":"Engineering of catalytic Ce@SiC ceramic membranes with ozonation for efficient antibiotic degradation","authors":"Silin Li ,&nbsp;Wenjie Zheng ,&nbsp;Wenlan Ji ,&nbsp;Yunfei Shi ,&nbsp;Tian Ren ,&nbsp;Shihao Zhang ,&nbsp;Xiao Wei ,&nbsp;Yibin Wei","doi":"10.1016/j.desal.2025.119815","DOIUrl":"10.1016/j.desal.2025.119815","url":null,"abstract":"<div><div>Catalytic ceramic membranes with ozonation have been considered promising for efficient organic pollutants degradation in water. Herein, cerium oxide-doped silicon carbide (Ce@SiC) ceramic membranes were developed via in-situ embedding CeO₂ nanoparticles into the porous SiC membrane that can be coupled with catalytic ozonation for efficient ciprofloxacin (CIP) degradation. Notably, the optimized Ce@SiC membrane with ozonation could achieve 94.3 % CIP degradation efficiency within 60 min, outperforming ozonation (63.4 %) or pristine SiC (66.1 %) alone. Meanwhile, the membrane showed excellent total organic carbon mineralization of 66.4 % for the CIP, which was significantly higher than that of using ozonation (19.8 %) or pristine SiC (30.1 %) alone, demonstrating enhanced oxidation efficiency. The high performance is attributed to the abundant oxygen vacancies on the Ce@SiC membrane surface, which facilitate ozone decomposition into hydroxyl (<img>OH) and superoxide (<img>O₂⁻) radicals, and the synergistic effect of the Ce³⁺/Ce⁴⁺ redox cycle. The membrane not only exhibited robust catalytic stability in cycling experiments, but also excellent resistance to ion interference. Furthermore, the high catalytic performance was mainly attributed to the rich oxygen vacancies on the Ce@SiC membrane surface, which facilitates ozone decomposition into <img>OH and <img>O₂⁻. This work offers a sustainable strategy of coupling catalytic ozonation with ceramic membrane for refractory antibiotics degradation.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119815"},"PeriodicalIF":9.8,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939972","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 role of co-ion transport in selectrodialysis for mono/divalent cation separation","authors":"Xixi Ma ,&nbsp;Qian Chen ,&nbsp;Lanlan Zhang ,&nbsp;Shanshan Liu ,&nbsp;Zixuan Wu ,&nbsp;Rui Li ,&nbsp;Zhiguo Dong ,&nbsp;Weiwei Li ,&nbsp;Jinfeng He ,&nbsp;Chuanrun Li ,&nbsp;Liang Ge ,&nbsp;Haiyang Yan","doi":"10.1016/j.desal.2025.119795","DOIUrl":"10.1016/j.desal.2025.119795","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Efficient separation of mono- and divalent cations can be achieved by a state-of-the-art selectrodialysis (SED) process owing to the excellent selectivity of monovalent cation perm-selective membranes (MCPMs). However, the selectivity between mono/divalent cations in SED process can also be affected by co-ion transport across the anion exchange membrane (AEM) in addition to the intrinsic selectivity of MCPMs. Therefore, we comprehensively investigated the effect of co-ion transport in mono- and divalent cations (e.g., Li&lt;sup&gt;+&lt;/sup&gt;/Mg&lt;sup&gt;2+&lt;/sup&gt; and Na&lt;sup&gt;+&lt;/sup&gt;/Mg&lt;sup&gt;2+&lt;/sup&gt;) separation by SED. Results indicated that when a commercial CXP paired with various AEMs for the separation of LiCl and MgCl&lt;sub&gt;2&lt;/sub&gt;, a loose structure and high co-ion transport number (&lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;MgCl&lt;/mi&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt;) of the A1RL membrane can significantly facilitate the co-ion transport of Mg&lt;sup&gt;2+&lt;/sup&gt;, resulting in a high selectivity (&lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;msup&gt;&lt;mi&gt;Mg&lt;/mi&gt;&lt;mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/mrow&gt;&lt;/msup&gt;&lt;msup&gt;&lt;mi&gt;Li&lt;/mi&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msup&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt;, 7.78); while a highly dense structure and a much low co-ion transport number (&lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;mi&gt;LiCl&lt;/mi&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt;) of the QPAB membrane can significantly contribute to an extremely low co-ion transport of Li&lt;sup&gt;+&lt;/sup&gt;, thereby obtaining a high &lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;msup&gt;&lt;mi&gt;Mg&lt;/mi&gt;&lt;mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/mrow&gt;&lt;/msup&gt;&lt;msup&gt;&lt;mi&gt;Li&lt;/mi&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msup&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt; (8.16). Comparing Li&lt;sup&gt;+&lt;/sup&gt;/Mg&lt;sup&gt;2+&lt;/sup&gt; and Na&lt;sup&gt;+&lt;/sup&gt;/Mg&lt;sup&gt;2+&lt;/sup&gt; separations in Cl&lt;sup&gt;−&lt;/sup&gt; system, the difference in Li&lt;sup&gt;+&lt;/sup&gt; and Na&lt;sup&gt;+&lt;/sup&gt; co-ion transport predominantly attributes to the electrostatic repulsion effect for the A1RL membrane due to its high IEC, while that should be ascribed to the pore size sieving effect for the QPAB membrane due to its highly dense structure. When it comes to the Na&lt;sup&gt;+&lt;/sup&gt;/Mg&lt;sup&gt;2+&lt;/sup&gt; separation paired with various anions that have different valences and ion sizes (i.e., Cl&lt;sup&gt;−&lt;/sup&gt;, SO&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;2−&lt;/sup&gt;, and Glu&lt;sup&gt;−&lt;/sup&gt;), the &lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;Na&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;A&lt;/mi&gt;&lt;mrow&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;mo&gt;/&lt;/mo&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt; dominated the co-ion transport, and a low &lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;Na&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;A&lt;/mi&gt;&lt;mrow&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;mo&gt;/&lt;/mo&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt; in monovalent anion systems resulted in a low co-ion transport of Na&lt;sup&gt;+&lt;/sup&gt; and a high &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mi&gt;J&lt;/mi&gt;&lt;msup&gt;&lt;mi&gt;Na&lt;/mi&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msup&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;, and thus a high selectivity (&lt;span&gt;&lt;math&gt;&lt;msubsup&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;msup&gt;&lt;mi&gt;Mg&lt;/mi&gt;&lt;mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/mrow&gt;&lt;/msup&gt;&lt;msup&gt;&lt;mi&gt;Na&lt;/mi&gt;&lt;mo&gt;+&lt;/mo&gt;&lt;/msup&gt;&lt;/msubsup&gt;&lt;/math&gt;&lt;/span&gt;, 11.9–12.8). In addition, the economic evaluation indicated that","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119795"},"PeriodicalIF":9.8,"publicationDate":"2025-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883074","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":"Inhibition of calcium carbonate deposition through a “sol-gel” coating containing an organic scale inhibitor","authors":"Soumaya Nouigues ,&nbsp;Hélène Cheap-Charpentier ,&nbsp;Catherine Debiemme-Chouvy ,&nbsp;Christel Laberty-Robert ,&nbsp;Hubert Perrot","doi":"10.1016/j.desal.2025.119787","DOIUrl":"10.1016/j.desal.2025.119787","url":null,"abstract":"<div><div>In this study, coatings were elaborated by a sol-gel process from tetraethoxysilane (TEOS) and methacryloxypropyltrimethoxysilane (MEMO) precursors for anti-scaling applications. A scale inhibitor, diethylene triamine penta(methylene phosphonic acid) (DTPMPA), was immobilized in the sol-gel film by impregnation to enhance the inhibiting property of the prepared coating. The anti-scaling properties of the coatings were evaluated using a quartz crystal microbalance (QCM). The coatings were characterized by scanning electron microscopy, angle contact measurements, Fourier transformation infrared spectroscopy and X-ray photoelectron spectroscopy. It has been shown that the TEOS/MEMO coating formed a thin, homogeneous, stable and rigid film. In this work, the results show that the sol-gel film including DTPMPA acts as a smart coating by releasing deposited CaCO₃ nuclei over time, preventing scale stagnation. The inhibition process takes place according to an interfacial reaction, due to the complexation between the DTPMPA molecules and the Ca²⁺ ions when the CaCO₃ nuclei are deposited on the coating. It has been demonstrated by UV–visible spectroscopy that no release of DTPMPA occurs in solution, which avoids modification of the water composition during the inhibition process. The sol-gel coating with the scale inhibitor acted as a smart coating, cleaning the surface when scale deposition started.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119787"},"PeriodicalIF":9.8,"publicationDate":"2025-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883076","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":"Electric-field-induced ultrafast and selective ZIF-8 filling in graphene membrane pores for precision dye desalination","authors":"Jialu Li ,&nbsp;Zhonghao Xu ,&nbsp;Yangdong He ,&nbsp;Sheng Shi ,&nbsp;Sihan Ye ,&nbsp;Liyun Zhang ,&nbsp;Lan Ma ,&nbsp;Jian Zhen Ou ,&nbsp;Hao Yu","doi":"10.1016/j.desal.2025.119808","DOIUrl":"10.1016/j.desal.2025.119808","url":null,"abstract":"<div><div>Integrating metal-organic-frameworks (MOFs) into graphene oxide (GO) membranes offers a pathway toward stable and highly selective nanofiltration, yet conventional blending or precursor-diffusion-driven in situ growth compromise structural integrity and is prohibitively slow (∼36 h). Here, we report an electric-field-driven strategy that induces electrophoretic migration of Zn²⁺ and 2-methylimidazole precursors, enabling ultrafast (&lt;60 s) synthesis of ZIF-8 within the internal pores of ethylenediamine (EDA)-crosslinked GO-based membranes intercalated by arched graphene (WG). Growth is directed preferentially into high-permeability channels, sequentially plugging dominant and subdominant pores at a rate 2160 times faster than diffusion. This selective pore filling suppresses ZIF-8 overgrowth and minimizes structural disruption, while enhancing rejection performance. The resulting membrane exhibits exceptional dye rejection of 87.11 % (MB), 99.45 % (EBT), 97.39 % (CV), 99.21 % (CR), and 99.37 % (TB), surpassing pristine GO (36.90–91.07 %) and slightly outperforming diffusion-grown counterparts. Meanwhile, the intrinsic 0.7 nm pores of ZIF-8 permit nearly complete salt permeation (rejection &lt;2.73 %), yielding practical dye/salt selectivity &gt;8. Amine-functionalized ZIF-8 further promotes crosslinking, imparting remarkable stability: wet/dry interlayer spacing variation &lt;1 Å and strong resistance to acid/base exposure, hydraulic flushing, and ultrasonication. This electric-field-guided, sub-nanopore engineering strategy thus establishes a generalizable platform for precision separation membranes using diverse substrates and porous framework.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"622 ","pages":"Article 119808"},"PeriodicalIF":9.8,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881467","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":"Green solvent-driven engineering of cellulose acetate membranes: Sequential optimization of DMSO co-solvent ratio and ZrO2 nanoparticle reinforcement for enhanced desalination performance","authors":"Sahar Saad Ali ,&nbsp;Ghada Al Bazedi ,&nbsp;Mohamed Hosni ,&nbsp;Hani Sewilam","doi":"10.1016/j.desal.2025.119810","DOIUrl":"10.1016/j.desal.2025.119810","url":null,"abstract":"<div><div>The performance of reverse osmosis (RO) membranes depends critically on their microstructural characteristics, which are substantially influenced by fabrication parameters and solvent compositions. This study introduces a green solvent–driven fabrication route coupling acetone/DMSO co-solvent optimization with post-thermal conditioning and minimal ZrO₂ nanoparticle addition to achieve a reproducible, low-energy membrane engineering strategy that outperforms conventional CA membranes. The investigation examines the synthesis of cellulose acetate (CA) membranes with varying concentrations of dimethyl sulfoxide (DMSO) as a co-solvent to elucidate the relationship between DMSO content and membrane morphology, thermal stability, and desalination performance. The structure-performance relationship was comprehensively analyzed through FTIR, scanning electron microscopy (SEM), TGA and water flux/salt rejection assessments using saline feed solutions. Membrane fabrication employed a phase inversion technique with 20 % polymer concentration and DMSO concentrations ranging from 6 % to 40 %. The selected membranes underwent thermal treatment at temperatures between 70 °C and 85 °C. Rheological analysis, surface morphology characterization, and salt rejection performance were evaluated before and after thermal modification. Water permeation flux was assessed using saline solutions with concentrations ranging from 3000 to 20,000 ppm under operating pressures of 5–20 bar.</div><div>Morphological analysis revealed that membranes containing 28 % DMSO exhibited optimized pore size distribution, resulting in the formation of finger-like structures that enhanced water transport while maintaining selectivity. Conversely, membranes with 20 % and 40 % DMSO displayed sponge-like morphologies, characterized by improved salt rejection capabilities and enhanced structural integrity. The optimal thermal treatment temperature for CA membranes containing 20 % DMSO was determined to be 80 °C. Under these conditions, the membranes achieved maximum salt rejection efficiencies of 93–99 %, with optimal performance observed after 25–30 s of thermal treatment, demonstrating the temperature-dependent nature of membrane densification and the correlation between treatment duration and feed salinity.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119810"},"PeriodicalIF":9.8,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939914","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":"Performance-enhanced biomimetic reverse osmosis membranes prepared based on imidazole-ureido self-assembled interlayers with different alkyl chain lengths: Mechanistic insights","authors":"Hanjing Xue ,&nbsp;Houkang Pu ,&nbsp;Xiaojuan Wang ,&nbsp;Xiaolai Zhang ,&nbsp;Weizheng Zhang ,&nbsp;Youxun Li ,&nbsp;Fan Bu ,&nbsp;Xuan Kan ,&nbsp;Congjie Gao ,&nbsp;Xueli Gao","doi":"10.1016/j.desal.2025.119809","DOIUrl":"10.1016/j.desal.2025.119809","url":null,"abstract":"<div><div>Inspired by biological aquaporins, the fabrication of modified thin film nanocomposite (TFN) reverse osmosis (RO) membranes through the self–assembly of imidazole-ureido (IU) molecules to construct imidazole-quartet water channels provides an innovative strategy to improve the upper bound of membrane's trade-off performance. In this study, an IU self-assembled interlayer was formed in situ on the substrate by pre-deposition method, which not only constructed artificial water channels, but also optimized the physicochemical characteristics of polyamide (PA) layers by influencing the interfacial polymerization process. Additionally, theoretical calculations were performed to quantify the specific contribution of IU interlayers with different alkyl chain lengths to the performance of TFN membranes. Results revealed that the IU6 interlayer with longer alkyl chains improved the properties of PA layers much more than the IU4 interlayer. The membrane prepared based on IU6 interlayers exhibited the best performance (3.19 L·m⁻²·h⁻¹·bar⁻¹, 99.28 %), with the water permeance approximately more than two times that of the TFC-control membrane, due to its PA layer with thinner thickness, higher surface roughness and wettability, as well as larger internal pore radius size. Overall, this study provides both experimental and theoretical insights into the future development of biomimetic water channel membranes.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"622 ","pages":"Article 119809"},"PeriodicalIF":9.8,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881468","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":"Engineering Cu-enhanced Mn-based Prussian blue analogue with boosted dual-redox activity for efficient and fast capacitive deionization","authors":"Zhiqiang Wu ,&nbsp;He Ren ,&nbsp;Hao Zhou ,&nbsp;Jianeng Ji ,&nbsp;Haiyun Ding ,&nbsp;Chunyan Li ,&nbsp;Minjie Shi ,&nbsp;Ying Hong ,&nbsp;Jun Yang","doi":"10.1016/j.desal.2025.119803","DOIUrl":"10.1016/j.desal.2025.119803","url":null,"abstract":"<div><div>Prussian Blue analogs (PBAs) have emerged as one of the promising materials for capacitive deionization (CDI) due to their excellent specific capacity and outstanding ion adsorption capability. However, Mn-based hexacyanoferrate Prussian Blue (MnHCF) suffers from insufficient utilization of active sites and poor ion kinetics during the electrochemical process, resulting in weak ion adsorption capacity and easy destruction of its stable structure. In this work, CuMnHCF was synthesized by incorporating Cu into the MnHCF framework via an in situ solvothermal approach. The appropriate introduction of Cu effectively occupied the interstitial sites of the MnHCF structure, optimized its electronic configuration, and successfully activated both the metal–N bonds and the Fe–CN dual redox-active sites within the framework (evidenced by in situ Raman measurements). These merits collectively led to a significant enhancement in the electrosorption capacity of CuMnHCF toward Na ions. The CuMnHCF electrode exhibits excellent cycling stability in aqueous NaCl electrolyte. After 5000 cycles, the specific capacitance decay is minimal, with a capacity retention rate of approximately 61.5% (5 A g⁻¹). As applied in electrochemical desalination experiment at a voltage of 1.2 V for 50 cycles, the retention rate of CuMnHCF electrode reached as high as 82.2%. Additionally, it not only exhibits a high salt removal capacity of 58.4 mg g⁻¹ (salt removal rate: 1.95 mg g⁻¹ min⁻¹), but also a peak salt removal rate of 15.7 mg g⁻¹ min⁻¹. As an application extension, the CuMnHCF electrode also shows excellent desalination performance for K<span><math><msup><mrow></mrow><mrow><mo>+</mo></mrow></msup></math></span>, Ca^2＋, and Mg<span><math><msup><mrow></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span>.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"623 ","pages":"Article 119803"},"PeriodicalIF":9.8,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145847710","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":"Microstructure-engineered NiFe-LDH composite membranes integrating high flux with visible-light-driven self-regeneration for sustainable treatment of complex oily water","authors":"Hongyuan Zhu ,&nbsp;Yifan Liu ,&nbsp;Shasha Yuan ,&nbsp;Liguo Shen ,&nbsp;Hongjun Lin ,&nbsp;Sui Zhang ,&nbsp;Die Ling Zhao","doi":"10.1016/j.desal.2025.119807","DOIUrl":"10.1016/j.desal.2025.119807","url":null,"abstract":"<div><div>This study presents innovative nickel‑iron-layered double hydroxides composite membranes fabricated via in-situ growth strategy with synergistic integration of high-flux oil-water separation and photocatalytic self-cleaning. By systematically regulating NiFe-LDH seed content (0–0.2 g) and growth duration (2–8 h), hierarchical nanosheet architectures with optimized surface hydrophilicity and roughness were engineered. The optimized membrane demonstrated an exceptional pure water flux of 6220.1 ± 41.9 L·m⁻²·h⁻¹·bar⁻¹ and a permeation flux of 3564.7±339.3 L·m⁻²·h⁻¹·bar⁻¹ for n-hexane/water emulsions with a rejection of 99.78 %. Remarkably, the membrane exhibited robust adaptability to complex oily wastewater, including real-world lab and kitchen wastewater containing oils, surfactants, and suspended solids. Under visible-light irradiation driven peroxymonosulfate (PMS) activation, the membrane achieved 93–100% flux recovery rates (FRR) over six cycles via radical-mediated degradation (<span><math><mo>·</mo><mi>OH</mi></math></span>, <span><math><msub><mi>SO</mi><mn>4</mn></msub><msup><mo>·</mo><mo>−</mo></msup></math></span>, and <span><math><msup><mrow></mrow><mn>1</mn></msup><msub><mi>O</mi><mn>2</mn></msub></math></span>), outperforming pristine membranes (81 % FRR). This dual-functional design addresses persistent challenges in oil fouling of membrane and real-wastewater complexity and thus offering a sustainable solution for industrial and domestic oily wastewater remediation. This work highlights the potential of microstructure-engineered photocatalytic membranes for scalable and sustainable wastewater remediation.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"622 ","pages":"Article 119807"},"PeriodicalIF":9.8,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881552","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}