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

{"title":"Exploring GeC/V2CS2 Ohmic heterostructure as anode for alkali metal-ion batteries: Insights and origins","authors":"Keliang Wang ,&nbsp;Rengui Xiao ,&nbsp;Tinghai Yang ,&nbsp;Song Liu ,&nbsp;Xiang Ke ,&nbsp;Song Li","doi":"10.1016/j.colsurfa.2025.137766","DOIUrl":"10.1016/j.colsurfa.2025.137766","url":null,"abstract":"<div><div>2D heterostructures have garnered significant attention in alkali metal-ion batteries due to their rapid charge transfer characteristics, which can dramatically enhance rate performance. However, the challenge of achieving heterostructure materials with both superior electrochemical properties and favorable interfacial contact properties remains a key technical issue currently faced. Herein, we propose a novel 2D Ohmic heterostructure GeC/V₂CS₂ as an anode material for alkali metal-ion batteries. The results reveal that GeC/V₂CS₂ heterostructure forms an excellent p-type Ohmic contact with low interfacial resistance and outstanding electrical conductivity, facilitating rapid electron transport. Analysis of the adsorption and diffusion behaviors of Li, Na, and Mg ions demonstrates that the heterostructure exhibits low diffusion energy barriers and remarkable theoretical specific capacities, particularly for magnesium-ion batteries (1428.57 mA h/g). Furthermore, the built-in electric field within the heterostructure enhances ion adsorption stability and migration rates while maintaining robust thermal and electrochemical stability. This work provides theoretical insights and design principles for developing high-performance 2D heterostructure anode materials, advancing the development of next-generation metal-ion batteries.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137766"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672599","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":"Effect of inorganic cations on bubble-oil droplet coalescence in aqueous solution","authors":"Wenliang Zhu ,&nbsp;Hongzheng Zhu ,&nbsp;Jinbo Zhu ,&nbsp;Yong Zhang ,&nbsp;Kun Chen ,&nbsp;Qingyong Meng ,&nbsp;Qiuyu Zeng ,&nbsp;Zihan Ji","doi":"10.1016/j.colsurfa.2025.137778","DOIUrl":"10.1016/j.colsurfa.2025.137778","url":null,"abstract":"<div><div>Understanding the interaction between bubbles and surfactant-stabilized oil droplets in electrolyte solutions is essential for controlling film stability and enhancing flotation efficiency. Compared to well-studied bubble coalescence, bubble-droplet interactions involve distinct interfacial dynamics due to the presence of surface-active agents. This study combined molecular dynamics simulations with macroscopic coalescence experiments to investigate the effects of metal ion hydration and reagent adsorption on bubble-droplet coalescence, aiming to elucidate the coupling between interfacial dynamics and internal bubble pressure under ionic conditions. Studies show that multivalent ions disrupt the hydrogen-bonding network of water, promoting 2-octanol adsorption at the gas-liquid interface and altering liquid film surface tension. The resulting surface tension gradients, combined with fluid viscosity, govern interfacial and dynamic pressures within the film, ultimately dictating internal bubble pressure changes during coalescence. The findings provide molecular-level insights into the regulation of surfactant behavior at gas-liquid interfaces by metal ions, offering a theoretical basis for the control of froth flotation performance.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137778"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654546","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":"Study on dynamic wettability grading and wetting mechanism of coal by surfactants with different hydrophilic structures","authors":"Yue Zhao ,&nbsp;Fangwei Han ,&nbsp;Yingying Peng ,&nbsp;Huilin Xu ,&nbsp;Jing Gong ,&nbsp;Kunlang Wu ,&nbsp;Hetang Wang","doi":"10.1016/j.colsurfa.2025.137787","DOIUrl":"10.1016/j.colsurfa.2025.137787","url":null,"abstract":"<div><div>The hydrophilic structure of surfactants significantly influences their dynamic wetting performance. Previous studies mainly used static methods and parameters to assess surfactant wetting on coal, with limited research on dynamic wetting, especially in quantifying and grading wettability based on maximum dimensionless wetting area. Therefore, this study employs a combined approach of impact wetting experiments and molecular dynamics simulations to investigate the effects of hydrophilic group type and chain length on the maximum dimensionless wetting area of droplets on coal surfaces. The dynamic wettability of the solutions was graded, and the microscopic wetting mechanisms of surfactants with different hydrophilic structures were analyzed. The results demonstrate that, at identical concentrations, the maximum dimensionless wetting area follows sodium alcohol ether sulfate (AES) &gt; decaethylene glycol monododecyl ether (C₁₂E₁₀) &gt; dodecyl trimethyl ammonium bromide (DTAB) (by hydrophilic group), and OP-10 &gt; OP-40 &gt; OP-7 (by chain length). According to the dynamic wettability grading criteria, AES was categorized as a strong wetting solution, DTAB was classified as a weak wetting solution, C₁₂E₁₀ exhibited a strong wetting solution when its concentration exceeded 0.03 %, and three octylphenol ethoxylate surfactants (OP-7, OP-10, OP-40) qualified as strong wetting solutions. The molecular dynamics simulation results revealed that the AES and OP-10 systems exhibited optimal relative concentration, interaction energy, and water molecule diffusion coefficients within their respective group, with the strongest wettability. Radial distribution function analysis demonstrated the following wettability trend for hydrophilic structures: sulfate group &gt; hydroxyl group &gt; ethoxy group &gt; quaternary ammonium group.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137787"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144694842","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":"Unraveling the synergistic effects of trapping and active sites on SO₂/H₂O-resistance of transition-metal modified Ce-TiO₂ dual-site catalysts via DFT calculation","authors":"Guomeng Zhang ,&nbsp;Ye Jiang ,&nbsp;Yichao Xu ,&nbsp;Jiayao Song ,&nbsp;Yingyuan Zhuang ,&nbsp;Weihong Wu ,&nbsp;Zhengda Yang","doi":"10.1016/j.colsurfa.2025.137790","DOIUrl":"10.1016/j.colsurfa.2025.137790","url":null,"abstract":"<div><div>Achieving SO₂/H₂O resistance in Ce-based catalysts remains challenging for stationary source NO_<em>x</em> elimination. This study proposes dual-functional CMT catalysts with separated SO₂/H₂O-trapping sites (M-O_2 C-Ti) and active Ce sites. The density functional theory (DFT) was applied to screen the optimal modified CMT catalysts by calculating the adsorption properties, electronic interactions and reaction pathways. The M-O_2 C-Ti structure is employed to trap SO₂/H₂O to avoid sulfation/hydration of the Ce site. Among seventeen transition-metals, Cr, Mn, Fe, Co, Ni-modulated M-O_2 C-Ti structures exhibit excellent SO₂/H₂O-trapping ability. This is attributed to more electron transfer at trapping sites. The NH₃-SCR reaction pathways contain five processes: NH₃ adsorption, NH₃ dissociation, N-N coupling, H transfers, and N-O breaking. NH₃ dissociation and H transfers were the most difficult elementary reactions to perform. Through the calculation of adsorption energy difference and free energy barrier, it is found that the Co doping can not only safeguard active Ce site from sulfation/hydration with Co-O_2 C-Ti structure as SO₂/H₂O-trapping site, but also exhibit excellent SO₂/H₂O-resistance for NH₃-SCR performance of active Ce site even after sulfation/hydration. The research results provide new insights into the mechanism of transition metal doping on the resistance of catalysts to SO₂/H₂O, giving theoretical guidance for the rational design of catalysts.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137790"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679308","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":"Thermal-setting resin-modified silica nanocomposites for self-regenerating and wide plugging distribution in water-based drilling fluids","authors":"Liu Lu ,&nbsp;Luo Yuquan ,&nbsp;Pu Xiaolin ,&nbsp;Bai Yang ,&nbsp;Wang Hongru ,&nbsp;Luo Pingya ,&nbsp;Fu Zhiyong","doi":"10.1016/j.colsurfa.2025.137780","DOIUrl":"10.1016/j.colsurfa.2025.137780","url":null,"abstract":"<div><div>Effective pore and fracture plugging typically requires the integration of various types and sizes of particles, ranging from nanoscale to microscale, to minimize drilling fluid invasion into the formation. Here, we report novel thermosetting silica nanoparticles decorated with resin (RSNP), which not only retain their nanoscale distribution even at high temperatures but also promote the formation of micrometer-sized particles through interactions with clay in drilling fluids. Characterizations using Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis and Differential Scanning Calorimetry (TGA-DSC), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), and Scanning Electron Microscopy (SEM) were employed to confirm the chemical structure of the synthesized silica nanoparticles and their interaction with clay in the drilling fluid. The plugging effectiveness was systematically assessed using various filter media and natural shale rock samples. TEM and SEM images revealed a narrow, monodisperse particle size distribution of the synthesized silica nanoparticles in the nanoscale, which were found to adsorb on the edges and surfaces of clay lamellae. Original pores and fractures were effectively sealed by silica nanocomposites of comparable size. The strong adsorption of silica nanocomposites on clay particles facilitates clay flocculation in the water phase and expels water molecules from the clay interlayer due to the intercalation and plugging effects of the silica nanocomposites, thereby inhibiting water invasion. Due to the thermosetting nature of the silica nanocomposites, which encapsulate and bridge clay particles at high temperatures, the drilling fluid evolves from a monodisperse to a bimodal particle size distribution, particularly under high-temperature conditions. This transition results in the formation of micrometer-sized particles in water-based drilling fluids, effectively matching the pore and fracture sizes ranging from nanoscale to microscale. These findings offer a novel strategy for designing nanocomposites for multi-stage plugging, optimizing additive usage while minimizing drilling fluid invasion into porous formations.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137780"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679409","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":"First-principles investigation of Pd modified HfTe2 monolayer membranes: Detection of dissolved gas in transformer oil","authors":"Ziwen Huang,&nbsp;Wen Zhou,&nbsp;Jialing Xia,&nbsp;Wenwen Gu,&nbsp;Qu Zhou","doi":"10.1016/j.colsurfa.2025.137782","DOIUrl":"10.1016/j.colsurfa.2025.137782","url":null,"abstract":"<div><div>Detecting the fault characteristic gases in insulating oil of oil-immersed transformers is of significant importance for the stable operation of power systems. In this work, based on first-principles calculations, we constructed pristine HfTe₂ and Pd modified HfTe₂ structures. Twelve adsorption configurations for CO, CO₂, CH₄, C₂H₂, C₂H₄, and H₂ gas molecules on the surfaces of pure HfTe₂ and Pd-HfTe₂ were developed by means of geometry optimization. From a number of angles, including adsorption energy, density of states, electron density, frontier molecular orbital theory, sensitivity, recovery time, and work function, we thoroughly investigated the adsorption characteristics and gas-sensing processes of these adsorption systems. The results demonstrate that Pd-HfTe₂ significantly enhances the adsorption performance for CO, CO₂, and C₂H₄, with adsorption energies reaching −1.425 eV, −0.786 eV, and −0.816 eV, respectively. Furthermore, the recovery times for CO₂ and C₂H₄ at 298 K are 19.22 s and 63.20 s, indicating that these gases can be rapidly desorbed from the Pd-HfTe₂ surface at room temperature. Compared with other two-dimensional materials, Pd-HfTe₂ holds promise as a low-power gas sensor for detecting characteristic gases like CO₂ and C₂H₄ and as a solid adsorbent material for cleaning CO gas. Theoretical advice for the construction of HfTe₂ sensors that can detect dissolved characteristic gases in oil is provided by the simulation results described in this study.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137782"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654502","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":"PAN/ CB spheres modified PAN/PVP dual amphiphilic porous nanofiber membranes for high-performance oil-water separation","authors":"Huiyi Wu,&nbsp;Yanxin Wang,&nbsp;Xiaotong Zhang,&nbsp;Wei Xing,&nbsp;Leixuan Li,&nbsp;Hanwen Wang,&nbsp;Linjun Huang,&nbsp;Jianguo Tang","doi":"10.1016/j.colsurfa.2025.137768","DOIUrl":"10.1016/j.colsurfa.2025.137768","url":null,"abstract":"<div><div>Efficient treatment of oily wastewater remains a significant challenge, particularly for rapid emulsion separation under gravity-driven conditions. Among existing strategies, membrane separation has attracted considerable attention due to its high operational efficiency and simplicity. This study integrates electrospinning and electrostatic spraying to fabricate a high-performance, antifouling fibrous membrane with hierarchical roughness and amphiphilicity. The resulting porous amphiphilic PAN/PVP-PAN/CB membrane demonstrates exceptional separation performance for both oil-water mixtures and emulsions under gravity, achieving remarkable water fluxes of ∼62,946.4 L·m⁻²·h⁻¹ (mixtures) and 1780.4 L·m⁻²·h⁻¹ (emulsions), with separation efficiencies exceeding 99 % for all systems. The membrane also exhibits robust cycling stability. This work presents a novel PAN/PVP- PAN/CB nanofibrous membrane with outstanding oil-water separation capability and practical processability, offering a sustainable material solution for environmental remediation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137768"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662340","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":"Anti-adhesive and antimicrobial coatings on ultrafiltration membranes via dopamine-assisted co-deposition of zwitterionic-cationic copolymers","authors":"Tiancheng Li ,&nbsp;Peng Dong ,&nbsp;Qiying Zhang ,&nbsp;Huiyang Xiao ,&nbsp;Haonan Zheng ,&nbsp;Lin Li ,&nbsp;Ziqi Cao ,&nbsp;Mengchen Zhang ,&nbsp;Chunping Ma ,&nbsp;Gaoyi Xie ,&nbsp;Yen Wei","doi":"10.1016/j.colsurfa.2025.137774","DOIUrl":"10.1016/j.colsurfa.2025.137774","url":null,"abstract":"<div><div>To overcome persistent challenges in membrane biofouling mitigation, we engineered a dual-functional zwitterionic-cationic copolymer architecture and proposed a dopamine-assisted co-deposition strategy for surface modification of polyvinylidene fluoride (PVDF) ultrafiltration membranes, optimizing the surface density of zwitterionic/cationic functional groups. The zwitterionic-cationic copolymers were strategically synthesized <em>via</em> activators regenerated by electron transfer for atom transfer radical polymerization, enabling the synergistic integration of strong hydration capacity and potent bactericidal activity. Key influence factors such as functional unit composition, deposition density, and copolymer chain length on the formation of hydration layers and the hydrophilicity of modified membranes were systematically studied. The PDA/p(DCD)-1-PVDF membrane exhibited substantially enhanced performance versus unmodified counterparts: elevated filtration efficiency (187.4 L·m⁻²·h⁻¹ water flux <em>vs</em>. 175.1 L·m⁻²·h⁻¹ with matching bovine serum albumin rejection), superior antifouling performance (84.78 % corrected total flux recovery ratio <em>vs.</em> 43.12 %), and complete bactericidal efficacy (100% eradication of Escherichia coli and Staphylococcus aureus <em>vs.</em> negligible activity). The dual-defense mechanism relies on zwitterionic groups forming hydration layers to prevent protein adsorption, while cationic groups disrupt bacterial biofilms <em>via</em> electrostatic interactions. This work highlights the potential of zwitterionic-cationic copolymer architectures for enhancing the anti-adhesive and antimicrobial properties of ultrafiltration membranes in a variety of applications.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137774"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662341","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":"Exploring the stability and binding interactions of insulin in chitosan/alginate nanohydrogels","authors":"Shahin Shaterzadeh Yazdi,&nbsp;Shirin Shahabadi,&nbsp;Hamed Emami,&nbsp;Javad Mohammadnejad,&nbsp;Faramarz Mehrnejad","doi":"10.1016/j.colsurfa.2025.137785","DOIUrl":"10.1016/j.colsurfa.2025.137785","url":null,"abstract":"<div><div>Oral administration of insulin presents a desirable alternative to subcutaneous injection; however, achieving effective carrier-mediated protection of the peptide remains a significant challenge. In this study, we employed molecular dynamics (MD) simulations to investigate the encapsulation of insulin within three oral delivery systems at neutral pH: chitosan/alginate (CHI/ALG), deoxycholic acid-modified chitosan/alginate (CDA/ALG), and O-carboxymethyl chitosan/alginate (CMC/ALG). Building on previous experimental data, this work aimed to elucidate the atomic-level mechanisms governing insulin encapsulation. Previous MD studies have primarily focused on analyzing chitosan derivatives or isolated polysaccharides for insulin encapsulation; however, no prior research has directly compared multiple chitosan variants within a unified chitosan/alginate nanohydrogel system. Our results demonstrated that both CDA/ALG and CHI/ALG successfully encapsulated insulin, enhancing its structural stability. In contrast, the CMC/ALG system exhibited poor encapsulation performance, with insulin showing significantly less contact with the carrier and increased exposure to the surrounding environment, ultimately reducing its stability. In the effective systems, CDA and CHI formed stable nanoparticles around insulin, driven primarily by electrostatic, hydrophobic, and CH-π interactions. CDA, in particular, indicated greater residue-specific energy contributions, attributed to the self-assembly properties imparted by deoxycholic acid. Overall, CDA/ALG and CHI/ALG emerged as more promising candidates for oral insulin delivery. These findings provide valuable insights for the rational design of an environmentally friendly oral nanocarrier, with the potential to enhance insulin stability and bioavailability in the gastrointestinal tract.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137785"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654504","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":"Enhanced visible-light-driven photocatalysis of ibuprofen by NH2 modified MIL-53(Fe) graphene aerogel: Performance, mechanism, pathway and toxicity assessment","authors":"Jinming Yang ,&nbsp;Shaohua Guo ,&nbsp;Huiqing Dong ,&nbsp;Yanke Liu ,&nbsp;Jinliang Wang ,&nbsp;Guixiang Quan ,&nbsp;Xiaodong Zhang ,&nbsp;Jianqiu Lei ,&nbsp;Ning Liu","doi":"10.1016/j.colsurfa.2025.137769","DOIUrl":"10.1016/j.colsurfa.2025.137769","url":null,"abstract":"<div><div>This study reported a three-dimensional NH₂-modified MIL-53(Fe)/graphene aerogel composite (GMAN) to enhance the photocatalytic degradation of ibuprofen (IBP) in the presence of persulfate (PS). GMAN-1 achieved nearly complete IBP degradation within 20 min under visible light with PS. The enhanced catalytic activity originated from the narrower band gap, higher transformation of photogenerated electron-hole pairs and higher BET surface areas of GMAN-1 compared with MIL-53(Fe)-NH₂ and graphene aerogel. Radical quenching experiments coupled with electron paramagnetic resonance spectroscopy demonstrated that ·OH and SO₄^·- were the primary reactive species during the IBP degradation. The optimized GMAN structure effectively suppressed iron ion leaching (&lt;0.31 %) and had good repeatability and stability for IBP degradation. Finally, IBP degradation pathways were proposed, toxicity assessment revealed the reduced ecological risks of IBP degradation intermediates. This work provided a rational design for robust MOF composites in sustainable water purification.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"726 ","pages":"Article 137769"},"PeriodicalIF":4.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702500","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}