Journal of Colloid and Interface Science最新文献

{"title":"Co3S4/MnS p-p heterojunction as a highly efficient electrocatalyst for water splitting and electrochemical oxidation of organic molecules","authors":"Lei Liu,&nbsp;Xinyu Li,&nbsp;Rui Yang,&nbsp;Haixia Ma,&nbsp;Enzhou Liu,&nbsp;Ting Gao,&nbsp;Tao Sun","doi":"10.1016/j.jcis.2025.02.115","DOIUrl":"10.1016/j.jcis.2025.02.115","url":null,"abstract":"<div><div>In this work, Co₃S₄/MnS p-p heterojunction catalyst with hollow structure was successfully synthesized by one-step hydrothermal method. For oxygen evolution reaction (OER), urea oxidation reaction (UOR), lactate oxidation reaction (OER-LA) and glucose oxidation reaction (GOR), 1.59 V, 1.49 V, 1.54 V and 1.40 V vs. RHE are required to drive a current density of 50 mA cm⁻², respectively, and the overpotential of hydrogen evolution reaction (HER) in 1 M KOH is 0.193 V at 50 mA cm⁻². For the two-electrode overall water splitting in 1 M KOH, 1 M KOH containing 0.5 M urea, 1 M KOH containing 0.125 M lactate electrolyte and 1 M KOH containing 0.3 M glucose, water splitting voltages are only required at 1.73 V, 1.60 V, 1.62 V and 1.63 V to drive the current density of 50 mA cm⁻². Moreover, its activity does not attenuate significantly in 1 M KOH containing 0.125 M lactate after continuous operation at 50 mA cm⁻² for 200 h, showing excellent durability. In addition, the technology of glucose oxidation assisted water splitting for hydrogen production has been preliminarily explored, which also has excellent HER performance. Density functional theory (DFT) show that the p-p heterojunction between Co₃S₄ and MnS is conducive to the redistribution of electrons at the interface, thus promoting electron migration. Finally, the water splitting cell coupled with lactic acid oxidation reaction using polylactic acid pipette as source also exhibits high activity and stability. This study provides another idea and strategy for hydrogen production while waste plastic treatment.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 589-598"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A photothermal-photocatalytic layered aerogel for harvesting water and hydrogen from seawater","authors":"Ningning Ma,&nbsp;Liang Dong,&nbsp;Tuo Zhang,&nbsp;Ning’er Xie,&nbsp;Li Tian,&nbsp;Zheng Zhang,&nbsp;Xiangjiu Guan,&nbsp;Liejin Guo","doi":"10.1016/j.jcis.2025.02.102","DOIUrl":"10.1016/j.jcis.2025.02.102","url":null,"abstract":"<div><div>Photocatalytic hydrogen production from seawater holds potential to decrease the use of fresh or pre-treated water. However, direct photocatalytic splitting of seawater currently encounters challenges such as corrosion of catalyst and unsatisfied stability. To address these issues, we have integrated seawater desalination with photocatalytic water vapor splitting for in-situ hydrogen production, while also obtaining freshwater. This approach avoids direct contact between photocatalytic materials and seawater solution, effectively mitigating corrosion and enhancing hydrogen production performance. Based on this design, we constructed a layered structure of photothermal-photocatalytic aerogel material via in-situ synthesis method and designed corresponding device for freshwater-hydrogen coproduction, demonstrating notable hydrogen production rate of 17.94 mmol m⁻² h⁻¹ with solar-to-hydrogen efficiency of 0.12 ± 0.02 % and freshwater production rate of 0.92 kg m⁻² h⁻¹. This work demonstrates significant practical value in photothermal-photocatalysis field, potentially addressing the problem of energy and water scarcity in off-grid region.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 573-581"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasma-driven integration of multifunctional active sites in three-dimensional self-supported catalysts for enhanced alkaline and seawater splitting","authors":"Chengwei Sun ,&nbsp;Yuan He ,&nbsp;Ting Xiang ,&nbsp;Njud S. Alharbi ,&nbsp;Changlun Chen","doi":"10.1016/j.jcis.2025.02.105","DOIUrl":"10.1016/j.jcis.2025.02.105","url":null,"abstract":"<div><div>Regulating the structure and composition is an important strategy to obtain high efficiency electrocatalyst. Herein, this paper proposes an innovative plasma-assisted approach to synthesize an efficient electrocatalyst with multiple active components (Co nanoparticles, oxygen vacancies, and CoFe layered double hydroxide nanosheets) covered on CoP nanowire array (denoted as PD-CoFe LDH@CoP, ‘PD’ is defined as plasma-driven approach) for alkaline water/seawater splitting. The hierarchical nanostructure can endow the catalyst with more substantial mass transfer and expose more active sites. In contrast, the multiple active components can accelerate the electrocatalytic kinetics, making the PD-CoFe LDH@CoP electrocatalyst exhibit excellent catalytic activity. As a result, when assembling a two-electrode system, the assembled cell only needs an ultralow voltage of 1.79 V to reach 100 mA/cm² in 1 M KOH seawater, together with remarkable durability. This work not only sheds light on an environmentally friendly, economical, and controlled way of fabricating multi-component heterostructure for hydrogen production but also paves the way for future research and development in this promising field.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 715-723"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Liquid crystalline coatings loaded with colistin for preventing development of biofilms on orthopedic implants","authors":"Seref Akay ,&nbsp;Manija Nazim ,&nbsp;Roudabeh Foroughian ,&nbsp;Christian Kjeldbjerg Kristensen ,&nbsp;Doaa Higazy ,&nbsp;Dorthe Posselt ,&nbsp;Oana Ciofu ,&nbsp;Anan Yaghmur","doi":"10.1016/j.jcis.2025.02.107","DOIUrl":"10.1016/j.jcis.2025.02.107","url":null,"abstract":"<div><div>The current antibacterial strategies focus on antibiotic therapy and extensive hygienic measures during orthopedic surgery. However, potential development of implant-associated infections remains a persistent clinical challenge. There is, therefore, a growing interest in introducing innovative safe antibacterial strategies for preventing and combating biofilm development on implants. Antibacterial coatings, particularly, are attractive for local delivery of antibacterial agents. We aim in this proof-of-concept study at introducing a novel and translatable implant coating approach, focusing on directed assembly of inverse non-lamellar lyotropic liquid crystalline (LLC) nanostructures on implants for prevention of initial bacterial attachment and biofilm formation through local delivery of the widely used cationic antibiotic colistin (COL). On exposure of dry lipid films deposited on model implants to aqueous solutions of COL prepared at different COL concentrations, a set of LLC coatings based on a commercial distilled monoglyceride product (or glycerol monooleate) were produced. In addition to small-angle X-ray scattering (SAXS) characterization investigations, <em>in vitro</em> studies were conducted for evaluating the antibacterial and antibiofilm properties of the LLC coatings against the Gram-negative bacteria <em>Pseudomonas aeruginosa</em>. The SAXS analysis indicated that all samples are inverse bicontinuous cubic <em>Pn3m</em> phases. Significant COL’s antibacterial activity and efficient protection against bacterial adhesion were demonstrated on coating model implants with LLC surface films produced by using aqueous solutions containing COL at concentrations of 50 and 500 µg/mL. On exposure to serum, the detected structural alterations and changes in COL’s antibacterial activity are also discussed. This study also highlights the implications of LLC self-assemblies for designing nanostructural coatings on orthopedic implants, which can prevent implant-associated biofilm infections through local delivery of antibacterial agents.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 630-642"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Au-modified metal organic framework nanozyme with tunable catalytic activity used for diabetic wound healing","authors":"Xiuli Ren ,&nbsp;Yanan Hu ,&nbsp;Zelin Sang ,&nbsp;Yumei Li ,&nbsp;Xifan Mei ,&nbsp;Zhenhua Chen","doi":"10.1016/j.jcis.2025.02.104","DOIUrl":"10.1016/j.jcis.2025.02.104","url":null,"abstract":"<div><div>Nanozymes with tunable catalytic activity have attracted attention in the field of biomedicine. Bacterial infections are the main causes of delayed or chronic wound healing. Therefore, antibacterial nanoplatforms with tunable enzymatic activity are urgently required for diabetic wound healing. Here, we propose a strategy for constructing Au-cluster-modified Prussian blue (PB) nanospheres (PB-Au) as antibacterial nanoplatforms for diabetic wound healing. The obtained PB-Au exhibited tunable peroxidase (POD)-like activity and maintained both photostability and catalytic stability. These advantages enhanced the antibacterial ability of the PB-Au enzyme. The results show that the bacterial biofilm disruption rate of the PB-Au enzyme was approximately 86 %. The bacterial elimination rate exceeded 95 %. Western blot (WB) data indicated that the expression of vascular endothelial growth factor (VEGF) and platelet endothelial cell adhesion molecule-1 (CD31) was upregulated by PB-Au by approximately 1.3- and 1.4-fold, respectively. The WB results also suggested that PB-Au could promote angiogenesis. Animal experiments showed that PB-Au rapidly increased the temperature at the wound site by up to 52.6 ℃, which was beneficial for sterilization. The wound healing rate was approximately 98 %. The results demonstrate that PB-Au nanozymes with tunable peroxidase (POD)-like activities have great potential to accelerate diabetic wound healing.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 643-658"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-free radical regulation mechanism based on pH in the peroxymonosulfate activation process mediated by single-atom Co catalyst for the specific rapid degradation of emerging pollutants","authors":"Lingxiao Zou ,&nbsp;Yihui Hu ,&nbsp;Yuancai Lv ,&nbsp;Yifan Liu ,&nbsp;Xiaoxia Ye ,&nbsp;Chunxiang Lin ,&nbsp;Liang Song ,&nbsp;Chen Tian ,&nbsp;Guifang Yang ,&nbsp;Minghua Liu","doi":"10.1016/j.jcis.2025.02.110","DOIUrl":"10.1016/j.jcis.2025.02.110","url":null,"abstract":"<div><div>Persulfate-based advanced oxidation technologies (PS-AOPs) show great potential in treating emerging pollutants because of their multiple reaction pathways induced by a variety of reactive species. However, the modulation of the reactive species in PS-AOPs and the specificity of reactive species for contaminants have still not received adequate attention. In this work, the feasibility of pH on modulating reactive species in PS-AOPs mediated by single-atom Co catalyst (Co_SA) and the relationship between each species and contaminant were deeply discussed. In the Co_SA/PMS system, Co(IV) was the predominantly active species in acidic conditions, and ¹O₂ was the predominantly active species in neutral and alkaline conditions. Specific degradation relationships with various pollutants were explored based on different major active species regulated under different pH conditions. Density Functional Theory (DFT) and experimental results demonstrated that organic pollutants with high E_HOMO (Energy of the Highest Occupied Molecular Orbital), low VIP (Vertical Ionization Potential) and ΔE (Energy Gap) were susceptible to oxidative degradation. Sulfonamide compounds, phenol compounds and tetracycline compounds tended to be attacked by ¹O₂. And the carbamazepine compounds and quinolone compounds tended to be attacked by Co(IV). This study will provide new perspectives on reactive species regulation and specific degradation of pollutants, and offer innovative ideas for rapid remediation of emerging pollutants in aquatic environments.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 617-629"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hierarchically periodic macroporous bismuth vanadate with engineered oxygen vacancies for enhanced photo-oxidation performance","authors":"Yuan Liu ,&nbsp;Ling Zhou ,&nbsp;Shaoqiang You ,&nbsp;Linsen Peng ,&nbsp;Rongbin Zhang ,&nbsp;Junchao Wei ,&nbsp;Xuewen Wang","doi":"10.1016/j.jcis.2025.02.111","DOIUrl":"10.1016/j.jcis.2025.02.111","url":null,"abstract":"<div><div>Controlling morphology and engineering surface defects are two widely employed strategies for enhancing catalyst activity, impacting the photodegradation of antibiotics and the photo-oxidation of water to generate oxygen. The hierarchical periodic macroporous structure reduces the migration distance of photo-excited carriers, lowers the electron–hole recombination rate, and increases the number of active sites by providing a larger surface area, all of which contribute to improved catalytic efficiency. A key aspect of surface defect engineering is the study of oxygen vacancies, which can act as electron donors, promoting carrier separation and thereby enhancing catalytic performance. The combined effects of these two features significantly enhance the catalyst’s photo-oxidation capabilities. By contrast to traditional methods that create oxygen vacancies during the synthesis process, this study introduces additional oxygen vacancies through a secondary treatment applied after the catalyst has been produced.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 659-667"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of in situ surfactant modification of lignin structure and surface properties during glycerol pretreatment in modulating cellulase-lignin binding affinities","authors":"Hui Zhang ,&nbsp;Weimeng Li ,&nbsp;Guojie Song ,&nbsp;Salauddin Al Azad ,&nbsp;Meysam Madadi ,&nbsp;Zhichao Deng ,&nbsp;Abdolreza Samimi ,&nbsp;Chihe Sun ,&nbsp;Fubao Sun","doi":"10.1016/j.jcis.2025.02.112","DOIUrl":"10.1016/j.jcis.2025.02.112","url":null,"abstract":"<div><div>Surfactants are effective agents for enhancing lignocellulosic pretreatment, synergistically modifying lignin with polyols to improve substrate hydrolyzability while achieving comparable delignification. However, the mechanisms underlying the multiple modifications from dual in situ surfactant/polyols grafting that passivate lignin-cellulase interactions and their core affecting factors remain unclear. Following the previously developed polyethylene glycol (PEG) and Triton-assisted pretreatment, the intrinsic correlation among lignin structures, physical barriers, and cellulase interactions was analyzed in this study. The surfactant grafting onto lignin can significantly decrease non-productive cellulase adsorption by 5–59 % compared to the initial glycerol-modified lignin. Structurally, the changes in lignin aliphatic –OH (<em>r</em> &gt; 0.93), H–OH (<em>r</em> &gt; 0.98), and G–OH (<em>r</em> &gt; 0.74) showed strong correlations with cellulase adsorption; the –COOH and C=O were not well-valiadted for assessing the non-productive interaction. Physically, surfactant modification also induced changes in lignin surface structure, with variations in specific surface area, pore size, and pore volume showing positive correlations (<em>r</em> &gt; 0.71). The structurally modified lignin had a relatively strong affinity for <em>exo</em>-glucanase and β-glucosidase in enzyme cocktails, while it reduced the irreversible adsorption of lignin onto cellulases (up to 97 % of total adsorbed protein). The secondary structure of desorbed cellulases underwent obvious changes independent of lignin structural modifications, with lowering β-sheet content and increasing random coil content. Based on molecular forces, surfactant modification lowered the binding free energy of cellulases by 60.3–86.5 %, and the reduction in H-bonding interaction was predominant. This study provides mechanistic insights for constructing lignin-modified pretreatments to enhance the substrate hydrolyzability.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 786-800"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Raspberry-like gold nano-conjugates of block copolymer prodrug based bicontinuous nanoparticles for cancer theranostics","authors":"Juthi Pal ,&nbsp;Afruja Khan ,&nbsp;Pousali Samanta ,&nbsp;Manisha Khamrai ,&nbsp;Amirul Islam Mallick ,&nbsp;Dibakar Dhara","doi":"10.1016/j.jcis.2025.02.108","DOIUrl":"10.1016/j.jcis.2025.02.108","url":null,"abstract":"<div><div>Theranostic nanoparticles like polymer conjugated gold nanoparticles are at the cutting edge of cancer therapy, offering an integrated platform for simultaneous diagnosis and treatment. In this study, we report a nanoconjugate (P2AuNPs) by combining doxorubicin (DOX) tethered polymeric prodrug based bicontinuous nanoparticles (P2NPs), developed recently by us, with gold nanoparticles (AuNPs). The AuNPs were generated by <em>in situ</em> reduction of HAuCl₄, where different polymer functionalities served the role of reducing and stabilizing agents. The bicontinuous morphology of P2NPs provided a unique template for the growth of gold nanoparticles, resulting in an overall raspberry-like morphology. Compared to existing small-sized theranostic AuNPs, which often trigger systematic cytotoxicity, the synthesized P2AuNPs had an ideal size of ∼90 nm for passive targeting of cancer cells through leaky tumor blood vessels. Furthermore, the embedded gold nanoparticles in P2AuNPs nanoconjugate served as a nanometal surface energy transfer (NSET) pair with the covalently attached DOX molecules, resulting in the significant quenching of DOX (turned ‘OFF’ state) fluorescence at physiological pH (7.4) as confirmed through steady-state and time-resolved fluorescence measurements. It was also possible to recover the quenched DOX fluorescence (turned ‘ON’ state) with the release of DOX selectively in cancer cell lines, plausibly due to higher glutathione (GSH) levels and acidic pH. <em>In vitro</em> cellular studies asserted the safe nature of P2NPs against non-cancerous cells (HEK-293T) while exhibiting significantly higher drug-induced cytotoxicity against cancerous cells (MCF-7) compared to free DOX. Moreover, when P2AuNPs were incubated with HEK-293T and MCF-7 cells, a fluorescence turn ‘ON’ for DOX was observed only in MCF-7 cells after the release of DOX, thereby providing an opportunity to improve the sensitivity of imaging and real-time monitoring of drug release. Together, this integrated theranostic system not only has the potential to enhance the precision and effectiveness of cancer therapy but also offers improved monitoring capabilities, representing a significant advancement in tailored nanomedicine.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 817-829"},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing the pore environment in biological metal–organic frameworks through the incorporation of hydrogen bond acceptors for inverse ethane/ethylene separation","authors":"Yating Wang ,&nbsp;Feifei Zhang ,&nbsp;Yanan Yang ,&nbsp;Xiaoqing Wang ,&nbsp;Libo Li ,&nbsp;Jinping Li ,&nbsp;Jiangfeng Yang","doi":"10.1016/j.jcis.2025.02.088","DOIUrl":"10.1016/j.jcis.2025.02.088","url":null,"abstract":"<div><div>The development of efficient adsorbents for the selective separation of ethane (C₂H₆) and ethylene (C₂H₄) is essential for the cost-effective production of high-purity ethylene. Here, we employ a pore engineering strategy to optimize the pore environment of biological metal–organic frameworks (MOFs) by incorporating hydrogen bond receptors to enhance the inverse separation efficiency of C₂H₆ and C₂H₄. Compared to the isomorphic Cu-AD-SA, the methyl-functionalized Cu-AD-MSA and Cu-AD-DMSA not only provide suitable pore confinement but also offer additional binding sites, thus creating an optimal environment for strong interactions with C₂H₆ (AD = adenine, SA = succinic acid, MSA = 2-methylsuccinic acid, and DMSA = 2,2-dimethylsuccinic acid). Adsorption results show that Cu-AD-DMSA exhibits remarkable C₂H₆/C₂H₄ selectivity (up to 2.4) as well as outstanding C₂H₆ adsorption capacity (3.63 mmol g⁻¹), surpassing most reported C₂H₆-selective MOFs. Theoretical calculations combined with in situ infrared spectroscopy reveal that the synergetic effect of suitable pore confinement, amino groups, and functional surfaces decorated with multiple methyl binding sites provides strong and multipoint interactions for C₂H₆. Breakthrough experiments demonstrate that Cu-AD-DMSA exhibits exceptional performance in separating binary C₂H₆/C₂H₄ gas mixtures. The high chemical and thermal stability, scalable synthesis, and economic viability of Cu-AD-DMSA illustrate its potential as a candidate for C₂H₆/C₂H₄ separation application.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"687 ","pages":"Pages 439-448"},"PeriodicalIF":9.4,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}