Colloids and Surfaces A: Physicochemical and Engineering Aspects最新文献

{"title":"Effect of sodium citrate on the expansion of clay minerals during leaching process of ionic rare-earth ores","authors":"Qin He ,&nbsp;Yuanlai Xu ,&nbsp;Ziqi Jin ,&nbsp;Shimin Hu ,&nbsp;Junhao Pan ,&nbsp;Pei Zhao ,&nbsp;Ruan Chi","doi":"10.1016/j.colsurfa.2025.137869","DOIUrl":"10.1016/j.colsurfa.2025.137869","url":null,"abstract":"<div><div>During the leaching process of ionic rare-earth ores, the swelling of clay minerals can cause severe problems including landslides. The swelling behaviors of halloysite, kaolin, montmorillonite, and illite were investigated in this work. The regulatory mechanisms of these inhibitors on the swelling behavior of the four clay minerals were systematically studied by combining 0.20 mol/dm³ magnesium sulfate with sodium citrate solutions of different concentrations. Linear swelling experiments were conducted to measure the swelling rates of each clay mineral in sodium citrate solutions at different concentrations. Analytical techniques such as XRD, FTIR, ζ-potential measurements, and TG analysis were employed to elucidate the action mechanisms. Results indicate that when magnesium sulfate is combined with 0.02 mol/dm³ sodium citrate, the swelling inhibition rate for halloysite reaches 25.20 %; with 0.05 mol/dm³ sodium citrate, the inhibition rate for kaolin is 12.48 %; and with 0.09 mol/dm³ sodium citrate, the swelling inhibition rates for montmorillonite and illite are 18.46 % and 35.53 % respectively. This research provides a theoretical basis and technical reference for the green and efficient inhibition of clay mineral swelling during the mining process of ionic rare-earth ores.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137869"},"PeriodicalIF":4.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding flame retardancy of phytic acid-based deep eutectic solvents by thermogravimetry, cone calorimetry, and vertical flame testing","authors":"Laura Fronchetti Guidugli,&nbsp;Joshua Calhoun,&nbsp;Robert Cheatham,&nbsp;Toufiq Reza","doi":"10.1016/j.colsurfa.2025.137870","DOIUrl":"10.1016/j.colsurfa.2025.137870","url":null,"abstract":"<div><div>Phytic acid has emerged as a safe flame-retardant alternative to traditional halogenated compounds, showing strong flame-retardant potential for natural fibers like wool, silk and cotton. This study explores the application of deep eutectic solvents (DES) based on phytic acid for the flame-retardant treatment of cotton fabrics. DES were synthesized using phytic acid as a hydrogen bond donor (HBD) in combination with choline chloride or ethylene glycol as hydrogen bond acceptors (HBAs). The DES coating were applied via a dip-coating method, and their structure, surface morphology, thermal degradation characteristics and flame retardancy were thoroughly examined. Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy with energy-dispersive X-ray (SEM-EDX) analysis confirmed the successful deposition of DES on the surface, with the presence of several functional groups and the identification of phosphorus, carbon, and nitrogen elements on the treated surfaces. Cone calorimeter test confirmed significant enhancement in flame retardancy for the DES-coated fabrics, with a major drop in the peak heat release rate (pHRR) from 213.4 ± 1.83 kW/m² to as low as 50.3 ± 2.58 kW/m². Thermogravimetric analysis (TGA) showed that DES-coated samples had increased thermal stability, with char residue levels rising from 11.8 % in the blank cotton to 33.5 % in the ChCl 1:1-treated fabrics at 800°C. Vertical flame testing demonstrated that the DES coatings imparted self-extinguishing properties to cotton fabrics, with the ChCl 1:5 coating achieving optimal results, including no after-flame, minimal smoke, and a reduced char length of 3.275 ± 0.19 cm. These findings highlight the novel use of phytic-acid based DES as an effective and sustainable flame-retardant for cotton fabrics marking the first comprehensive study to demonstrate their significant fire-suppressing ability while mitigating the acidity-related degradation of cellulose fibers.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137870"},"PeriodicalIF":4.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic redox cycling in Cu-montmorillonite anchored CoTiO3: A dual-functional composite for high-efficiency peroxymonosulfate activation toward tetracycline degradation","authors":"Zhinan Xie ,&nbsp;Xudong Liu ,&nbsp;Min Li ,&nbsp;Jiarong Mu ,&nbsp;Ruiguo Zhao ,&nbsp;Yiguo Su","doi":"10.1016/j.colsurfa.2025.137855","DOIUrl":"10.1016/j.colsurfa.2025.137855","url":null,"abstract":"<div><div>Efficient interfacial charge transfer plays a crucial role in for enhancing activation of peroxymonosulfate (PMS) and improving pollutant degradation efficiency. In this study, the interlayer confinement effect of montmorillonite (Mt) with high cation-exchange capacity was utilized to anchor Cu²⁺ for constructing Cu-intercalated montmorillonite (Cu-Mt), which was further integrated with CoTiO₃ (CTO) nanorods to form a CTO@Cu-Mt catalyst. Compared with the single CTO/PMS system, the CTO@Cu-Mt/PMS system exhibited significantly enhanced catalytic performance, with the degradation rate of 98 % within 30 min in tetracycline (TC) degradation. Electrochemical tests showed that Cu species acted as electron transfer mediators and effectively promoted the conversion of Co²⁺ to Co³⁺ through its dynamic valence shift, and this synergistic effect significantly enhanced the interfacial charge transfer efficiency. The post-reaction XPS analysis revealed that the Cu⁺ content exhibited merely a slight decrease of 1.5 % (Δ), confirming the anchoring effect of the interlayer confinement in Cu-Mt on active species, thereby effectively optimizing the Co redox process. Additionally, the Inductively coupled plasma emission spectroscopy (ICP-OES) solution test demonstrated an ultralow Cu leaching concentration of 1.23 mg L⁻¹, further confirming the structural stability of the system. As confirmed by quenching experiments and Electron paramagnetic resonance (EPR) characterization, the efficient degradation of pollutants was primarily attributed to the synergistic interaction of •OH and ¹O₂. The “structure-limited, dual-path synergistic” design strategy proposed in this study establishes a novel theoretical framework for developing highly stable multiphase catalytic oxidation systems.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137855"},"PeriodicalIF":4.9,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic interactions of MMTZ and carboxylic acid polymers: Enhancing the corrosion and oxidation resistance of electrolytic copper foil","authors":"Qi Zhao ,&nbsp;Wei Li ,&nbsp;Pan Guo ,&nbsp;Qing Cheng ,&nbsp;Qiao Ding ,&nbsp;Tong Liu ,&nbsp;Ning Li ,&nbsp;Bo Wu ,&nbsp;Qinmin Pan ,&nbsp;Yanling Xu ,&nbsp;Deyu Li","doi":"10.1016/j.colsurfa.2025.137830","DOIUrl":"10.1016/j.colsurfa.2025.137830","url":null,"abstract":"<div><div>The widespread use of electrolytic copper (EC) foil in lithium-ion batteries and printed circuit boards makes its corrosion and oxidation resistance critical to performance and durability. However, the protective performance of single corrosion inhibitors is limited, highlighting the urgent need for high-performance composite corrosion inhibitors. Herein, we systematically investigate the synergistic effects of 5-mercapto-1-methyl-1H-tetrazole (MMTZ) and carboxylic acid polymers (polyacrylic acid (PAA), hydrolyzed poly maleic anhydride (HPMA), and maleic acid-acrylic acid copolymer (MAAA)) in enhancing the corrosion resistance and antioxidant performance of EC foil. Compared to single corrosion inhibitors, composite inhibitors significantly improve the corrosion resistance and antioxidant performance of EC foil. When used individually, the corrosion inhibition efficiency of MMTZ and MAAA is only 83.99 % and 44.76 %, respectively, while the corrosion inhibition efficiency of the MMTZ-MAAA composite system reaches 96.95 %, and it can still significantly delay the oxidation discoloration of EC foil at 200°C. The XPS and molecular dynamics simulation results further confirm the synergistic effect between the carboxylic acid inhibitors and MMTZ. Specifically, these components interact to form a stable and compact protective barrier on the EC foil surface through spatially complementary interactions. This work offers theoretical insights and new directions for designing high-performance composite corrosion inhibitors for EC foil.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137830"},"PeriodicalIF":4.9,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective adsorption of hydrolyzed polymaleic anhydride as an eco-friendly depressant on galena during the flotation of molybdenite: Experimental and DFT study","authors":"Siqi Yang ,&nbsp;Xianping Luo ,&nbsp;Xuekun Tang ,&nbsp;Zisuai Liu ,&nbsp;Rufeng Chen ,&nbsp;Xun Fan ,&nbsp;Jiancheng Miao ,&nbsp;Louyan Shen","doi":"10.1016/j.colsurfa.2025.137853","DOIUrl":"10.1016/j.colsurfa.2025.137853","url":null,"abstract":"<div><div>Achieving efficient and sustainable separation of molybdenite from galena remains a significant challenge in mineral processing. This study evaluated the effectiveness of hydrolyzed polymaleic anhydride (HPMA) as a selective depressant for galena in a kerosene flotation system, focusing particularly on its impact on the separation efficiency between molybdenite and galena. Micro-flotation experiments showed that at pH 8, HPMA effectively suppressed galena flotation while maintaining molybdenite recovery above 95 %. Mixed mineral flotation tests further validated the exceptional performance of HPMA, achieving high-efficiency separation with a Mo recovery rate exceeding 95 % in the froth product while effectively suppressing the Pb recovery rate to 5.38 %. Zeta potential and contact angle analyses revealed stronger HPMA adsorption on galena than on molybdenite, increasing galena's hydrophilicity and preventing collector attachment. FT-IR, XPS and DFT analyses confirmed the exclusive formation of chemical bonds between HPMA's carboxyl groups and galena's Pb sites, leading to stable surface complexes that amplify the wettability differences between the minerals. These mechanisms may represent the key factors responsible for the effective separation of the two minerals, establishing HPMA as a promising eco-friendly reagent with considerable industrial application potential.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137853"},"PeriodicalIF":4.9,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective gas sensitivity characterisation based on transition metal doped WS₂ single molecule membrane and its application in lung cancer breath marker detection","authors":"Pengfei Jia ,&nbsp;Yujie Chen ,&nbsp;Wenhao Jiang ,&nbsp;Qingbin Zeng ,&nbsp;Min Xu ,&nbsp;Yunhan Jia","doi":"10.1016/j.colsurfa.2025.137846","DOIUrl":"10.1016/j.colsurfa.2025.137846","url":null,"abstract":"<div><div>Lung cancer is the leading cause of cancer-related deaths worldwide, and innovation in early diagnostic techniques is urgently needed. In recent years, novel sensing technologies based on the detection of volatile organic compounds (VOCs) in exhaled breath have shown great potential in the field of early lung cancer screening due to their advantages of being non-invasive, convenient, and highly sensitive. In this study, the sensing properties of transition metal (Cu, Ag, Pt)-doped WS₂ monolayers for lung cancer-specific VOCs were systematically investigated through the innovative application of density functional theory. The results demonstrate that all three doped systems exhibit excellent thermal stability, and their VOCs adsorption capacity is significantly enhanced compared with that of pristine WS₂. This ensures stable desorption and sensing performance of the material in high-temperature operating environments. Notably, the Ag-WS₂ system performs particularly well in key performance indicators such as charge transfer, bandgap modulation, and recovery time, showing superior adsorption properties for four typical lung cancer biomarkers. More importantly, the Ag-WS₂ system exhibits a unique CO₂-repelling property, which significantly improves detection accuracy. This effectively addresses the common issue of cross-sensitivity interference in traditional methods and provides a theoretical basis for the accurate qualitative analysis of lung cancer-specific VOC mixtures. These research findings not only pave the way for the development of novel early diagnostic techniques for lung cancer but also provide an important scientific reference for preventive lung cancer screening.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137846"},"PeriodicalIF":4.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lightweight and robust aerogel assembling with aramid nanofibers and biomass-derived magnetic carbon nanoparticles toward advanced microwave absorption and infrared stealth","authors":"Min-yu Li ,&nbsp;Yuan-lin Yan ,&nbsp;Xing-hai Zhou ,&nbsp;Yuan Gao ,&nbsp;Gang Wang ,&nbsp;Li-hua Lyu ,&nbsp;Yong-fang Qian ,&nbsp;Shang-ru Zhai ,&nbsp;Hong-zhu Liu ,&nbsp;Zhong-gang Wang","doi":"10.1016/j.colsurfa.2025.137797","DOIUrl":"10.1016/j.colsurfa.2025.137797","url":null,"abstract":"<div><div>Carbon aerogel exhibits unique advantages in microwave absorption and infrared stealth applications owing to its ultralow density, high porosity, and continuous three-dimensional conductive networks. Nevertheless, developing carbon aerogel with excellent mechanical robustness to meet the practical application demands remains a significant challenge. Herein, a lightweight and robust aerogel assembling with biomass-derived magnetic nickel/carbon (Ni/C) nanoparticles and aramid nanofibers (ANF) is successfully constructed. The magnetic Ni/C nanoparticles are synthesized via an innovative wet-spraying technique that fully exploits the strong chelation capability of biomass sodium alginate toward metallic nickel ions. After high-temperature carbonization, this process yields magnetic Ni/C nanoparticles with high specific surface area, and offers advantages of simple processing procedures and high yield. Concurrently, the ANF is fabricated by a scalable top-down deprotonation approach, acting as a supportive skeleton to ensure structural integrity and mechanical robustness. The optimized aerogel delivers a unique lamellar network architecture with an ultra-low density of 0.0168 g/cm³ and outstanding elastic recovery exceeding 95 % after 100 cycles at 40 % strain. Consequently, the optimized aerogel delivers remarkable electromagnetic microwave absorption (EMA) performance, achieving a minimum reflection loss (RL_min) of −49.497 dB at 14.87 GHz, and an effective absorption bandwidth (EAB) of 5.41 GHz at a thickness of 2.0 mm. Simultaneously, the optimized aerogel exhibits excellent infrared (IR) stealth capability. After being exposed to IR radiation for 60 min on a heating platform at 80 ℃, the surface temperature of the optimized aerogel only rise from 25.3 ℃ to 26.9 ℃. This study provides a strategic paradigm for designing aerogel material with balanced mechanical properties and multi-functional performance.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137797"},"PeriodicalIF":4.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Injectable poly(ethylene glycol)/chitosan-based in situ hydrogel with wonderful mechanical property for wound dressing","authors":"Fan Li ,&nbsp;Yimeng Liu ,&nbsp;Jun Wang ,&nbsp;Yu Zhou ,&nbsp;Junjie Tan ,&nbsp;Hongxiang Chen ,&nbsp;Hongye Yan ,&nbsp;Xinghua Liao","doi":"10.1016/j.colsurfa.2025.137841","DOIUrl":"10.1016/j.colsurfa.2025.137841","url":null,"abstract":"<div><div>To increase the water solubility of chitosan and enhance the mechanical strength of chitosan-based <em>in-situ</em> hydrogel, poly(ethylene glycol) monomethyl ether-grafted chitosan (PCS) was fabricated by a simple and efficient modification method with hexamethylene diisocyanate (HDI) as bridging agent, and then a series of poly(ethylene glycol)/chitosan-based <em>in situ</em> hydrogels (PCS@gel) were prepared from PCS and aldehyde-terminated poly(ethylene glycol) (DF-PEG) as cross-linking agent. The resultant PCS shows good water solubility in the absence of acid and its solid content is up to 8 wt%. By studying the effects of the mass ratio of PCS to DF-PEG and their solid content on the gel time and properties of PCS@gel, the results demonstrate that increasing the solid content of precursor solution can significantly shorten the gel time and improve its mechanical properties and adhesion strength. When the mass ratio of PCS to DF-PEG is 1:1, PCS@gel has a shorter gel time and higher mechanical strength. While the mass ratio of PCS to DF-PEG is 5:1, PCS@gel has better adhesion properties. Besides, PCS@gel also has good self-healing ability, antibacterial effect, low cytotoxicity and the ability to promote cell migration. Therefore, PCS@gel will have a promising application as a wound dressing.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137841"},"PeriodicalIF":4.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical Surface-Enhanced Raman Spectroscopy of acetaminophen: Adsorption dynamics and charge transfer mechanism","authors":"Matěj Kmetík ,&nbsp;Ivan Kopal ,&nbsp;Karolína Salvadori ,&nbsp;Gabriela Broncová ,&nbsp;Marcela Dendisová","doi":"10.1016/j.colsurfa.2025.137801","DOIUrl":"10.1016/j.colsurfa.2025.137801","url":null,"abstract":"<div><div>Electrochemical Surface-Enhanced Raman Spectroscopy (EC-SERS) enables detailed study of molecular adsorption and charge transfer at metal surfaces. This work investigates acetaminophen (AAP) adsorption on a roughened copper electrode using EC-SERS combined with cyclic voltammetry (CV). CV confirms AAP’s electrochemical stability within −1000 to 0 mV, allowing analysis of adsorption without redox interference. AAP rapidly adsorbs within eight CV cycles (∼13 min), forming stable surface complexes primarily through amine group interactions. Desorption is slower, indicated by gradual changes in electrochemical current and Raman signal during reverse scans. The highest SERS enhancement occurs at −600 mV, where optimal charge transfer and molecular orientation maximize signal intensity. Density functional theory calculations support experimental findings, confirming the formation of metal-molecule “complexes” consistent with observed vibrational modes. The study highlights the influence of applied potential on adsorption/desorption dynamics and demonstrates copper’s promise as an affordable EC-SERS substrate. Despite lower enhancement compared to noble metals, copper’s biocompatibility and surface versatility make it suitable for biomedical and environmental sensing applications. These insights contribute to the advancement of electrochemical sensors based on EC-SERS for pharmaceutical and bioanalytical uses.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137801"},"PeriodicalIF":4.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the enzyme-like acidic microenvironment in FER zeolite for N-alkylation of aniline with benzyl alcohol","authors":"Xinghao Shi,&nbsp;Lei Chen,&nbsp;Biao Meng,&nbsp;Xiaoling Liu,&nbsp;Jiao Wei,&nbsp;Meng Xu,&nbsp;Xinyu Zhu,&nbsp;Yang Yang,&nbsp;Yu Zhou,&nbsp;Jun Wang","doi":"10.1016/j.colsurfa.2025.137847","DOIUrl":"10.1016/j.colsurfa.2025.137847","url":null,"abstract":"<div><div>The ordered microchannels of zeolites provide a feasible opportunity to modulate the adsorption and diffusion of guest molecules depending on the matching of the molecular structure and porous characteristics, encouraging the exploration of enzyme-like specificity of zeolites in heterogeneous catalysis. In this work, we investigated the activity of FER, MFI, MOR, and BEA zeolites in the amination of aniline with benzyl alcohol. The influence of acid properties, morphology, and topology-related adsorption behavior was specially studied to uncover how the micro-environment determined the activities from the molecular level through Rietveld refinement. FER zeolites were found extremely active in the amination to give the 99 % conversion of aniline and 98.7 % yield of secondary amines. The T1 site in the cross-section of the 10-membered-ring (MR) channel and FER cavity was found as the active site. Aniline and benzyl alcohol adsorption on the T1 site was respectively preferred in the FER cavity and 10-MR channel, increasing the collision probability and thus enhancing the activity. This unique molecular recognition behavior in the confined space of zeolite is responsive to the remarkable and stable amination activity.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137847"},"PeriodicalIF":4.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}