Separation and Purification Technology最新文献

{"title":"Degradation of norfloxacin by highly magnetic CoFe2O4 loaded 0D-CQDS activated PMS: Mechanistic analysis and environmental impacts","authors":"Jian Zhang, Zheng Xing, Xin Wang, Xin Cheng, Xinyan Wang, Hongyang Liu, Lina Li, Xueying Yang, Muchen Lu","doi":"10.1016/j.seppur.2025.131989","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131989","url":null,"abstract":"In this study, carbon quantum dots (CQDs) were loaded onto CoFe<sub>2</sub>O<sub>4</sub> spinel oxides through a hydrothermal method to synthesize magnetic nanocomposites (CFOC<sub>0.07</sub>). The strong Fe-Co interactions in CFOC<sub>0.07</sub> effectively suppressed Co ion leaching, while the introduction of CQDs exposed additional reactive sites. The conjugated π structure in the CQDs molecule can effectively regulate the electron transfer efficiency of CFOC<sub>0.07</sub> and accelerate the electron transfer in the CFOC<sub>0.07</sub>/PMS system. The main active sites Co(III) and Fe(II) on CFOC<sub>0.07</sub> synergize with the <span><span><math><msubsup is=\"true\"><mtext is=\"true\">HSO</mtext><mrow is=\"true\"><mtext is=\"true\">5</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></span><script type=\"math/mml\"><math><msubsup is=\"true\"><mtext is=\"true\">HSO</mtext><mrow is=\"true\"><mtext is=\"true\">5</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></script></span>/<span><span><math><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mtext is=\"true\">5</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></span><script type=\"math/mml\"><math><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mtext is=\"true\">5</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></script></span> and PMS systems to promote the cycling of Co(II)/Co(III), which further enhances the catalytic ability. Experimental results demonstrated that the CFOC<sub>0.07</sub>/PMS system could remove up to 95.6% of Norfloxacin (NOR) under optimal conditions, involving both free radicals (<span><span><math><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mtext is=\"true\">4</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></span><script type=\"math/mml\"><math><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mtext is=\"true\">4</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></script></span>, •OH, and <span><span><math><msubsup is=\"true\"><mtext is=\"true\">O</mtext><mrow is=\"true\"><mtext is=\"true\">2</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></span><script type=\"math/mml\"><math><msubsup is=\"true\"><mtext is=\"true\">O</mtext><mrow is=\"true\"><mtext is=\"true\">2</mtext></mrow><mrow is=\"true\"><mo is=\"true\">∙</mo><mtext is=\"true\">-</mtext></mrow></msubsup></math></script></span>) and non-free radical (<sup>1</sup>O<sub>2</sub>) as reactive substances. Additionally, cycling experiments and a dynamic continuous flow reactor showed that CFOC<sub>0.07</sub> exhibited high magnetic properties, durable stability and good recycling performance. Toxicity analysis demonstrated that CFOC<sub>0.07</sub> significantly","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"40 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191937","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 construction of novel BiOBr/black-TiO2/tourmaline composites for the synergistic degradation of tetracycline in aqueous","authors":"Pengfei Zhou ,&nbsp;Xiaoyu Han ,&nbsp;Laixuan Wu ,&nbsp;Mingyang Qi ,&nbsp;Yanbai Shen ,&nbsp;Jianan Nie ,&nbsp;Xinnan Liu ,&nbsp;Fei Wang ,&nbsp;Liang Bian ,&nbsp;Jinsheng Liang","doi":"10.1016/j.seppur.2025.131976","DOIUrl":"10.1016/j.seppur.2025.131976","url":null,"abstract":"<div><div>Since antibiotic abuse has posed a long-term threat to the ecological environment and human health, it is urgently needed to explore efficient techniques for the rapid removal of remaining antibiotics in wastewater. In this work, combined solvothermal and hydrothermal methods were reported to synthesize novel BiOBr/black-TiO₂/schorl (BTS) ternary composites to achieve the deep elimination of tetracycline (TC) through the adsorption-photodegradation synergistic effect. A series of characterizations were conducted to investigate the structure, composition, and photoelectric properties of BTS. The results show that compared with pristine BiOBr, black-TiO₂ and the counterpart binary composites, BTS exhibited superior adsorption and photodegradation performance towards TC. Among all the samples, BTS-2 demonstrated the optimal TC removal efficiency of 97.7 % with a dosage of 0.6 g/L under visible light irradiation. Based on the electron spin resonance (ESR) experiments, the possible active free radicals are determined during the photodegradation process. A liquid chromatograph mass spectrometer (LC-MS) test was carried out to identify the intermediates of TC degradation and the plausible degradation pathways were proposed. The excellent TC removal performance over the BTS composite can be attributed to the adsorption-photodegradation properties of the sample and the full utilization of the characteristic of each component within the ternary composite.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"362 ","pages":"Article 131976"},"PeriodicalIF":8.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124466","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":"Interplay between piezoelectric and co-catalytic effect of Fe3O4@MoS2 synergistically enhances Fenton-like reaction","authors":"Cuilin Meng ,&nbsp;Yifan Ren ,&nbsp;Jianan Gao ,&nbsp;Nadeeshani Nanayakkara ,&nbsp;Yanbiao Liu","doi":"10.1016/j.seppur.2025.131973","DOIUrl":"10.1016/j.seppur.2025.131973","url":null,"abstract":"<div><div>Fenton-like reaction based on peroxymonosulfate (PMS) activation represents a promising approach for water purification. However, its practical application is often hindered by the inadequate redox cycling of catalytic metal sites. To address this challenge, we propose an effective strategy that integrates piezoelectric and co-catalytic effects into PMS activation. Specifically, we designed a series of MoS₂ and Fe₃O₄ composites (denoted as Fe₃O₄@MoS₂-X, where X represents the Fe/Mo molar ratio). Among these, Fe₃O₄@MoS₂-0.5 demonstrated optimal performance in a piezoelectric-enhanced Fenton-like coupling system (catalyst/PMS/US), with the conventional Fenton-like system (catalyst/PMS) serving as a control. The Fe₃O₄@MoS₂-0.5/PMS/US system exhibited significantly enhanced pollutant degradation kinetics (<em>k</em>_<em>o</em>_<em>b</em>_<em>s</em> = 1.04 min⁻¹), outperforming the Fe₃O₄@MoS₂-0.5/PMS system (<em>k</em>_<em>o</em>_{_<em>b</em>}_<em>s</em> = 0.22 min⁻¹). This improvement is attributed to the synergistic interplay between piezoelectricity and co-catalysis, which facilitated efficient electron supply and transfer, thereby accelerating the redox cycling of Fe³⁺/Fe²⁺ pairs. By leveraging dual reaction pathways—radical and non-radical mechanisms—the coupling system demonstrated exceptional interference immunity and achieved superior degradation efficiencies across a wide range of solution pH and complex water matrices. This study introduces an innovative and effective strategy to enhance the performance of conventional Fenton-like reaction, offering valuable insights for the development of advanced water treatment technologies.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"362 ","pages":"Article 131973"},"PeriodicalIF":8.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124469","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":"Recent improvements in Salt-Assisted and Microwave-Assisted recovery methods for sustainable metal extraction from NCM cathodes in spent Lithium-Ion Batteries: A review","authors":"Bianca Maria Bresolin, Alessandra Zanoletti, Elza Bontempi","doi":"10.1016/j.seppur.2025.131918","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131918","url":null,"abstract":"The increasing adoption of electric vehicles has generated a pressing need for sustainable management of end-of-life lithium-ion batteries (LIBs), particularly those utilizing nickel-rich layered oxide cathodes (NCM). This review critically examines recent advancements in recycling technologies, focusing on innovative methods such as salt-assisted roasting and microwave-assisted thermal treatments, as well as their combined applications. These approaches demonstrate promising potential to enhance the selective recovery of critical metals like lithium, nickel, cobalt, and manganese, while addressing environmental and economic challenges. Additionally, the review highlights sustainability assessments and identifies key gaps in the current literature, emphasizing the need for integrated strategies to minimize energy consumption and environmental impact. By providing a comprehensive analysis of these emerging recovery methods, this work aims to guide future research and industrial adoption, contributing to a circular economy for LIBs.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"55 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191934","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":"Porous biomass material-supported cationic covalent organic framework (COF) aerogel: A superior adsorbent for roxarsone removal","authors":"Yun-Jie Zhou, Dong-Xiao Cao, Xue-Nan Feng, Jing-Qi Liu, Hong-Xin Jiang, An-Na Tang, De-Ming Kong","doi":"10.1016/j.seppur.2025.131981","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131981","url":null,"abstract":"Roxarsone (ROX) and its degradation products pose a significant threat to ecosystems and human health. Herein, a porous biomass material-supported cationic covalent organic framework (COF) aerogel (EP@PDA@COF), synthesized by in-situ growth of cationic COF on the surface of vertical channels of polydopamine (PDA)-functionalized eggplant (EP) aerogel, has been successfully applied for the adsorption and removal of ROX from aqueous solutions. The uniform distribution of COF layer on the channel surface prevents the agglomeration of COF powders, ensuring the COF active sites fully exposed. The vertical macroporous channels inherited from EP aerogel promote the mass transfer. These, combining with excellent hydrophilicity, remarkable mechanical stability, ease of handling, good regeneration, and robust thermal and chemical stabilities, confer the EP@PDA@COF aerogel with highly efficient and rapid adsorption of ROX, giving an impressive maximum adsorption capacity of 426.0 mg·g⁻¹ and an equilibrium time as short as 90 s. Experimental tests and theoretical simulations indicate that the key contributor is the synergistic effect of electrostatic attraction, hydrogen bonding, and π-π interactions. This study presents a green and cost-effective adsorbent for the remediation of organoarsenic pollution, and the proposed porous biomass material-supported COF aerogel synthesis strategy offers new insights into material science for environmental management.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"9 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191935","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":"A Janus biomass-derived photothermal material with low enthalpy of evaporation and high salt tolerance for efficient solar evaporation","authors":"Jian Zheng,&nbsp;Fucai Wu,&nbsp;Dan Yu,&nbsp;Wei Wang","doi":"10.1016/j.seppur.2025.131864","DOIUrl":"10.1016/j.seppur.2025.131864","url":null,"abstract":"<div><div>Solar-driven interfacial evaporation (SDIE) as a promising solution to freshwater scarcity has emerged. In recent years, there have been notable advancements in the research domain of SDIE. Nevertheless, the endeavor to develop biomass-derived solar evaporators that possess environmental compatibility, exhibit high evaporation efficiencies, and demonstrate robust salt resistance continues to pose significant challenges. This work innovatively proposes carbon nanotubes (CNTs) loaded on polydopamine modified butia capitata leaf stem, and hydrophobic surface modification to obtain a Janus biomass-derived solar evaporator (CPLS-J). Molecular dynamics simulations (MDS) at the molecular scale verified that cellulose network of CPLS-J and the introduced 1H,1H,2H,2H-Perfluorooctyltriethoxysilane (POTS) system, which lowered the enthalpy of evaporation in water and substantially enhanced the diffusion coefficient of water molecules, jointly promoted efficient evaporation. The results demonstrate CPLS-J has high evaporation efficiency, high salt resistance and stability, with a full-spectrum solar absorptivity of about 93.9 %, an evaporation efficiency was up to 2.27 kg m^–2 h⁻¹, and a photo-thermal conversion efficiency of 93.63 % at 1 solar radiation, which outperformed most of the biomass-derived evaporators. CPLS-J can be used not only for desalination of seawater but also for purification of various other water sources with excellent purification effect. With the implementation of the green energy strategy, sustainable and efficient biomass-derived solar evaporators can provide a new way to solve the freshwater shortage problem.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"362 ","pages":"Article 131864"},"PeriodicalIF":8.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124905","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":"Enhanced antifouling durability of zwitterionic polymer brush grafted ceramic membrane for sustainable oil/water separation applications","authors":"Jiazhi Chen ,&nbsp;Juan Ren ,&nbsp;Chen Yang ,&nbsp;Bin Feng ,&nbsp;Xinzhi Dang ,&nbsp;Yong-kuan Gong","doi":"10.1016/j.seppur.2025.131963","DOIUrl":"10.1016/j.seppur.2025.131963","url":null,"abstract":"<div><div>The development of superior antifouling membranes with high-flux and durable oil/water separation performance is an urgent need for the treatment of massive oily wastewater. This work reports a novel strategy and mechanism of enhancing the antifouling durability of poly(sulfobetaine methacrylate) (pSB) brush grafted commercial alumina ceramic membrane (CM/pSB). The grafting density is controlled by the surface content of ester bonded α-bromoisobutyryl bromide (BiBB) and the pSB is grafted by a facile surface-initiated activators regenerated by electron transfer atom transfer radical polymerization (SI-ARGET-ATRP). High-density of the pSB brushes forms a closely covered hydration layer barrier on the membrane surface to suppress the acid/base catalyzed hydrolysis of the ester linkage anchored pSB brushes, as well as effectively prevent the adhesion of oil droplets during long-term oil/water filtration separation. The superior antifouling property of the optimized CM/pSB membrane was demonstrated by a nearly zero decline in filtration flux for separating a 30 % crude oil/water mixture, as well as over 98 % resistance to protein adsorption and bacterial adhesion. Furthermore, the membrane filtration flux reached over 700 L·m⁻²·h⁻¹·bar⁻¹ for separating of surfactant-stabilized oil-in-water emulsions with flux recovery ratio high to 99.8 % and oil rejection ratio over 98 %. More importantly, the brush stability in pH 2 and pH 12 solutions was increased by 15 and 8 times, respectively, which enables high flux separation of various oily wastewater for 8 years. These significant advances pave a way for highly efficient and sustainable treatment of massive oily wastewater.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"362 ","pages":"Article 131963"},"PeriodicalIF":8.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191939","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":"Mechanism research on separate co-adsorption of multiple carbon dioxide over molybdenum disulfide for large-scale indoor air purification","authors":"Gaofeng Deng, Zhichao Wang, Yan Liu, Chi Feng, Yuqun Zhuo, Pengbo Hu","doi":"10.1016/j.seppur.2025.131987","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131987","url":null,"abstract":"With the intention of capturing carbon dioxide (CO₂) on a large scale from indoor air, it is necessary to acquire how different CO₂ molecules interact with each other after individual strong adsorption. In this study, CO₂ molecules are adsorbed over pure &amp; tungsten (W)-/titanium (Ti)-modified molybdenum disulfide (MoS₂) are systematically investigated via density functional theory (DFT) calculations. In calculations, adsorption &amp; transition-state (TS) features of single &amp; double CO₂ molecules over MoS₂, lowering positions of top-layer sulfur (S) atoms for enhancement of CO₂ adsorption strength and thermal performances of adsorption strength &amp; TS energy barriers at high temperature are explored. The results exhibit that most of CO₂ adsorption structures over both pure &amp; W-/Ti-modified MoS₂ belong to chemisorption except those at top-layer S atoms owing to existence of single lone electron. As to weak physisorption, it is found that lowering z-axis positions of top-layer S atoms could effectively enhance adsorption strength of CO₂ because of formation quasi-carbonate structures. For high TS energy barriers, it is proved that doping of W or Ti atoms in MoS₂ could largely cut down required TS energy barriers due to catalytic effects of W or Ti atoms. What is more, all chemisorption structures still keep adsorptive at high temperature because of strong bonding and complexity of surficial electron structures. This study can provide sufficient information for utilizing MoS₂ as indoor CO₂ adsorbents.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"28 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143192317","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":"Supersaturated carbon-dioxide-enhanced backwash of ceramic microfiltration membranes","authors":"Weiming Qi, David A. Ladner","doi":"10.1016/j.seppur.2025.131915","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131915","url":null,"abstract":"Supersaturated CO₂-enhanced backwash (SCEB) was tested as an alternative to clean-water backwash to enhance the effectiveness of foulant removal for ceramic microfiltration membranes. Air bubbles are commonly used to tangentially scour the feed side surface of micro- and ultrafiltration membranes to add scouring and loosen cake layers; this is called air-assisted backwash. Unlike air-assisted backwash, SCEB forces dissolved CO₂ and CO₂ bubbles through membrane pores. In this study, transmembrane pressure (TMP) and flux profile during SCEB were directly analyzed to reveal the exact nucleation location. The results from constant-flux filtration show that SCEB recovered more filtration TMP compared to DI water backwash, which saves 6.5%, 2.7%, and 6.9% of the energy during lake water, activated sludge, and rendering wastewater filtration, respectively. Visualization of the membrane permeate is done for the first time, confirming that CO₂ bubbles were not formed before entering the membrane matrix. The pressure and flux profiles of SCEB itself were directly monitored. The pressure profile from constant-flux backwash was analyzed to further understand the cleaning mechanism. The results from constant-flux SCEB showed more negative pressure than DI water backwash, which means that CO₂ bubbles went through the membrane pores and created more resistance during SCEB. The visualization confirms that CO₂ bubbles nucleated inside the membrane pores rather than on the filtrate side to clear the foulant blocked deep inside the membrane matrix. The behavior of CO₂ bubbles can be divided into three stages during SCEB: i) Permeate flush out, ii) Bubble concentration growth, and iii) Bubble concentration equilibrium. The last stage has the highest concentration of CO₂ bubbles, which work as pore-scrubbing entities and play an important role in better cleaning effectiveness because of the higher nucleation rate, extra shear stress, and greater lifting force.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"123 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084074","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":"A tailored polymer with enhanced electrosorption capability for efficient ammonium removal","authors":"Yueheng Tao ,&nbsp;Jing Jin ,&nbsp;Xinyue Zhang ,&nbsp;Zhangjiashuo Qian ,&nbsp;Jintian Jiang ,&nbsp;Minjie Shi","doi":"10.1016/j.seppur.2025.131942","DOIUrl":"10.1016/j.seppur.2025.131942","url":null,"abstract":"<div><div>Capacitive deionization (CDI) is rapidly gaining recognition as a highly auspicious technology for water purification and effluent treatment. At the core of CDI technology reside electrode materials, which perform a pivotal function in the removal of contaminants through electrosorption process. While organic compounds present a vista of sustainable synthesis and versatile molecular architectures, their proclivity for dissolution in aqueous solutions and the paucity of redox-active sites pose significant hurdles to their implementation in CDI electrodes. Herein, this work presents the successful engineering of a novel polymer, designated as PATQ, through a facile one-step polymerization process utilizing aminoanthraquinone (ATQ) as the monomer. The strategic incorporation of abundant and readily available C=O redox-active sites, coupled with the meticulous construct of a conjugated framework to ensure high structural stability, endows the PATQ polymer with remarkable capabilities as an electrode material for NH₄⁺ electrosorption. This exceptional performance is corroborated by electrochemical measurements and in-situ Raman spectroscopy. Furthermore, a high-efficiency hybrid CDI device has been created, showcasing a notable NH₄⁺ removal capacity of 101.5 mg/g and a rapid removal rate of 6.18 mg/g min⁻¹, along with energy recovery features. Therefore, this work paves the way for efficient, sustainable and cost-effective water purification technologies.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"362 ","pages":"Article 131942"},"PeriodicalIF":8.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084113","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}