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

{"title":"Carbon cloth-supported high-entropy transition metal selenides as high-performance oxygen evolution reaction catalysts","authors":"Changyu Hu ,&nbsp;Xiaoyu Liu ,&nbsp;Guoping Han ,&nbsp;Cheng Chen ,&nbsp;Hu Liu ,&nbsp;Wenhao Zhou ,&nbsp;Huidong Xie","doi":"10.1016/j.colsurfa.2025.136819","DOIUrl":"10.1016/j.colsurfa.2025.136819","url":null,"abstract":"<div><div>High-entropy selenides are anticipated to be high-performance oxygen evolution reaction (OER) catalysts owing to their unique structures and tunable polymetallic elements. Traditional synthesis methods for high-entropy selenides require prolonged high-temperature treatment but the catalytic activity of the products is low. Herein, we prepared carbon fiber-supported high-entropy selenized Co-Zn-Cd-Cu-Mn nanosheets (CoZnCdMnCuSe@CC) using a cation exchange method. The synergistic effects of the multi-metal composition and the strong interfacial bonding between the catalyst and the carbon cloth substrate result in excellent catalytic activity and stability. The CoZnCdMnCuSe@CC catalyst achieves an overpotential of 261 mV at a current density of 10 mA cm⁻², a tafel slope as low as 59 mV dec⁻¹ Meanwhile, CoZnCdMnCuSe@CC shows good long-term stability. After 200 h of timed current measurements at 10 mA cm⁻², CoZnCdMnCuSe@CC shows almost no decrease in current density. This work offers a novel approach to the preparation of high-entropy selenides.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136819"},"PeriodicalIF":4.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760807","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":"Fast UV curing sodium sulfate decahydrate based flexible phase change material with excellent mechanical strength for thermal energy storage","authors":"Yujie Liao ,&nbsp;XianQing Zeng ,&nbsp;ShuaiPeng Wang ,&nbsp;Lei Tang ,&nbsp;Changyu Tang ,&nbsp;Yongsheng Li ,&nbsp;Donglin Han","doi":"10.1016/j.colsurfa.2025.136817","DOIUrl":"10.1016/j.colsurfa.2025.136817","url":null,"abstract":"<div><div>Conventional hydrated salt phase change material (PCM) suffer from large supercooling, severe phase separation, easy leakage, and poor mechanical properties, which limit their performance in energy storage applications. In this study, a flexible composite PCM was successfully prepared using the UV fast-curing method, which significantly improves the production efficiency of flexible materials and offers substantial time advantages. During the preparation process, a dual-network hydrogel structure was constructed through the covalent cross-linking of sodium polyacrylate (PAAS) with N, N′-methylenebisacrylamide (MBA) and the hydrogen bonding provided by starch (ST). Sodium sulfate decahydrate (SSD) was encapsulated within this structure, and 3 % Borax was added as a nucleating agent. Subsequently, stretchable and flexible composites with varying hydrogel contents were prepared. The experimental results show that the three-dimensional network structure formed by the PAAS/ST hydrogel provides an effective domain-limited space for SSD. This not only successfully prevents phase separation and leakage but also significantly enhances the flexibility and shape stability of the composites. Additionally, the introduction of the PAAS/ST hydrogel endows the composite material with a certain degree of electrical conductivity while having a relatively minor impact on its thermal conductivity. After 100 heating-cooling cycles, the composites maintained stable phase transition temperatures and enthalpies, as demonstrated by DSC tests, thus showing good cycling performance. This study provides an efficient and feasible solution for the thermal management of flexible electronic devices, with significant scientific significance and broad application prospects.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136817"},"PeriodicalIF":4.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760801","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":"Cold isostatic pressure pretreatment of biochar to promote the adsorption performance of Hg(II) under the synergistic effect of carbon and nitrogen related sites","authors":"Xin Qian ,&nbsp;Zhenyu Wei ,&nbsp;Peng Lv ,&nbsp;Yu Qi ,&nbsp;Jing Wang ,&nbsp;Feng Zhen ,&nbsp;Bin Qu","doi":"10.1016/j.colsurfa.2025.136820","DOIUrl":"10.1016/j.colsurfa.2025.136820","url":null,"abstract":"<div><div>The biochar derived from lignin has nitrogen-rich functional groups and presents a wide range of potential applications in the treatment of wastewater. In order to prepare N-containing modified biochar (CNB), a novel cold isostatic pressing (CIP) pretreatment method is presented in this paper. This method breaks down the microstructure in the straw, allowing for complete pyrolysis of the material during the preparation process.The process by which CNB-300 absorbs or sequesters Hg(II) ions was very similar to the Langmuir model; its saturated adsorption capacity on Hg(II) was 160.65 mg/g at 25 °C. This technique significantly increases the nitrogen content in biochar to 15 %, enhances the specific area of contact of the biochar, and forms a complex pore structure, which allows more N-containing chemical bonds to be exposed and participate in the removal process. This promotes the combined impact of nitrogen-related sites and carbon on the removal of Hg(II).</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136820"},"PeriodicalIF":4.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760809","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":"Full biomass-based polylactic acid (PLA) aerogel with robust flame retardancy and long-term early fire warning","authors":"Siqi Wang ,&nbsp;Guoli Yan ,&nbsp;Yaduo Zheng ,&nbsp;Yunhong Jiao ,&nbsp;Jianzhong Xu ,&nbsp;Haiyun Ma","doi":"10.1016/j.colsurfa.2025.136811","DOIUrl":"10.1016/j.colsurfa.2025.136811","url":null,"abstract":"<div><div>Currently, developing environmentally friendly materials with fire warning capabilities is an attractive topic in the field of flame retardant. This study uses the biomass-derived material polylactic acid (PLA) as a matrix, and hydroxyapatite (HA) and phytic acid (PA) as flame retardants, to prepare a fully biomass aerogel (P-HA-PA) with excellent flame retardancy and thermal insulation properties. The limiting oxygen index (LOI) of the P-HA-PA aerogel is 38.9 %, which meets the vertical burning test (UL-94) V-0 rating and has good insulation and drip resistance. Compared to pure PLA aerogel, the total heat release (THR) of P-HA-PA is reduced by 60 %, and the total smoke production (TSP) is reduced by about 70 %. Additionally, the aerogel exhibits an ultra-long fire response time upon contact with flames. The composite aerogel prepared in this study shows great potential application value in fire protection and early warning</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136811"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747073","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":"Preparation of defective and stable MOF membrane for enhanced uranium extraction from seawater","authors":"Shuaichuan Cui ,&nbsp;Xingxing Wang ,&nbsp;Yifan Huang ,&nbsp;Shihan Liu ,&nbsp;Ziming Li ,&nbsp;Yifan Zhang ,&nbsp;Shusen Chen ,&nbsp;Pengyang Deng","doi":"10.1016/j.colsurfa.2025.136806","DOIUrl":"10.1016/j.colsurfa.2025.136806","url":null,"abstract":"<div><div>Herein, a defect-rich UiO-66-NH₂ hybrid membrane (DUUM) was successfully synthesized via in-situ growth of defective UiO-66-NH₂ onto irradiation-treated ultra-high molecular weight polyethylene fabrics to enhance the uranium extraction from seawater. The concentration of lattice defects within the framework is regulated by simply adjusting the ratio of ligand to metal (L/M), and DUUM with the L/M ratio of 1 exhibits the best uranium adsorption capacity. The adsorption kinetics investigation shows that DUUM has a higher adsorption rate than UiO-66-NH₂ powders, and the adsorption isotherms investigation shows DUUM has a saturated uranium adsorption capacity of 460 mg·g⁻¹ which is about 5 times that of the defective UiO-66-NH₂ powders. DUUM exhibits a flux of 1440 LMH and a uranium removal efficiency of 65.5 % from natural seawater through single-pass filtration. More importantly, DUUM demonstrates excellent stability in real seawater environments (40-day) and under high doses of gamma-ray irradiation (300 kGy). The enhanced adsorption capacity is attributed to the membrane structure of DUUM which enhances exchange efficiency at the interface between uranium and DUUM via filtration, and the lattice defects which increase the specific surface area and expose more adsorption sites. The high stability results from the inherent hydrophobicity and radiation crosslinking features of the UP substrates. This study about DUUM will promote the practical application of efficient MOF membrane in fast uranium extraction from real seawater, as well as nuclear wastewater.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136806"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760803","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":"KH-550 functionalized fly ash for the enhancement in anti-corrosion and flame-retardant performance of water-borne epoxy coatings","authors":"Lan Wu ,&nbsp;Zetang Li ,&nbsp;Wei Li ,&nbsp;Qiaoxin Yang ,&nbsp;Chunlei Li ,&nbsp;Yuqin Tian","doi":"10.1016/j.colsurfa.2025.136787","DOIUrl":"10.1016/j.colsurfa.2025.136787","url":null,"abstract":"<div><div>This study presents the successful preparation of an eco-friendly filler, designated as KH-550 functionalized fly ash (KFA), achieved through the surface functionalization of fly ash (FA) with the silane coupling agent KH-550.The modification significantly enhances the surface properties of fly ash, improving its compatibility and dispersibility in water-borne epoxy (WEP) coatings. The incorporation of KFA into WEP coatings effectively improved the defects of water-borne epoxy (WEP) coatings, enhanced their anti-corrosion performance, and imparted flame-retardant properties. In electrochemical tests, the composite coating demonstrated excellent anti-corrosion performance, with a corrosion rate (CR) decreased by three orders of magnitude compared to pure WEP coatings. Results from cone calorimetry tests showed good thermal performance, with a peak heat release rate (PHRR) 37.9 % lower than that of pure WEP coatings. This study introduces an innovative approach to preparing dual-functional WEP coatings, paving the way for new applications of FA resources.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136787"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760804","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":"Modulation of composite energetic microunit structure and performance: Synergistic effects of microdroplets and binders","authors":"Wenyu Wu,&nbsp;Dongqian Fan,&nbsp;Xiaojuan Fu,&nbsp;Wenjie Liu,&nbsp;Xiaodong Li,&nbsp;Shuangqi Hu","doi":"10.1016/j.colsurfa.2025.136810","DOIUrl":"10.1016/j.colsurfa.2025.136810","url":null,"abstract":"<div><div>Modulating the structure of composite energetic microunits (CEMs) is an effective strategy for improving component homogeneity and safety. In this study, controlled construction of four different HMX/TATB composite microstructures, namely, erythrocyte-like, apple-like, spherical, and cobble-like, using a relatively open coaxial microdroplet template. Based on the theory of synergistic self-assembly between microdroplets and binders, CEMs with tunable structures and particle sizes were successfully prepared. The self-assembly mechanism underlying the formation of CEMs with controllable microstructures was elucidated. The effects of different binder systems on the morphology, structure, and properties of the CEMs were systematically investigated. The results indicate that optimizing the binder system effectively regulates the morphology and structure of the microunits, resulting in high sphericity, narrow particle size distribution, excellent flowability, and high packing density. In addition, binder modulation resulted in varying degrees of improvement in thermal stability and combustion performance. Compared with irregular samples, the self-assembled composite microspheres exhibited more regular morphology, enhanced thermal stability, improved safety, and superior combustion performance. These findings highlight the critical role of binder modulation in controlling microstructure and tuning material properties. Unlike previous reports, this study expands the application of microdroplet technology in composite energetic materials. It proposes a new approach for the synergistic and controllable construction of different microstructure composite particles using microdroplets and binders, providing valuable insights for the structural design and performance optimization of other energetic materials.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136810"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747072","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 hydrophobicity, mechanical and sound absorption properties of polyimide aerogels reinforced by polyacrylonitrile nanofibers","authors":"Hui Wang ,&nbsp;Shimin Wang ,&nbsp;Wenge Wang ,&nbsp;Jinjun Yang ,&nbsp;Feng Guo ,&nbsp;Zhao Ke ,&nbsp;Dandan Li ,&nbsp;Hui Li","doi":"10.1016/j.colsurfa.2025.136805","DOIUrl":"10.1016/j.colsurfa.2025.136805","url":null,"abstract":"<div><div>Despite its lightweight and porous nature, aerogel has been extensively investigated. However, there remains an urgent need to further enhance its mechanical strength. Many reports detail strengthening aerogel matrix with various fibers as supporting skeleton. Here, composite aerogels were prepared with polyimide serving as the matrix and polyacrylonitrile nanofibers as the filler. A more in-depth exploration was carried out into the transformation of the aerogel structure in relation to the nanofiber content. Additionally, an analysis was conducted on the impact of the structure on mechanical properties, heat insulation, sound absorption, and water absorption. It was found that the nanofibers effectively optimize the compressive properties of the composite aerogels, while also satisfying the requirement of resilience. The maximum compressive stress and corresponding elastic modulus of the aerogels were 1.83 MPa and 22.03 MPa, respectively. After soaking for 24 h, the lowest water absorption was only 5.56 %, and the sound absorption coefficient remained almost unchanged under such conditions. The thermal conductivity of all aerogels was stable at 0.0413–0.0428 W/m·K. In summary, this work provides a preparation method and design concept of aerogel that can meet the requirements of high strength and low water absorption based on the sound absorption and heat insulation, The rationally designed aerogel shows significant potential for harsh high-temperature and high-humidity applications.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136805"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760896","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":"Triboelectric properties of recycled poly(ethylene terephthalate) nanofibrous web from waste clothes","authors":"Seong Baek Yang ,&nbsp;Jong-Hyun Kim ,&nbsp;Sang Yong Nam ,&nbsp;Dong-Jun Kwon","doi":"10.1016/j.colsurfa.2025.136803","DOIUrl":"10.1016/j.colsurfa.2025.136803","url":null,"abstract":"<div><div>This study systematically investigates how different DCM-to-TFA solvent ratios influence the properties of electrospun PET nanofibrous webs, including solubility, morphology, chemical composition, mechanical behavior, and triboelectric performance. Solubility tests showed that PET dissolves poorly (&lt;70 %) under pure DCM conditions (10:0), whereas ratios with less than 90 % DCM (9:1–0:10) achieved over 80 % dissolution. As the TFA fraction increased, the average fiber diameter dropped from about 1.0 µm (9:1) to below 0.5 µm (1:9, 0:10), and FT-IR spectra (notably in the 1300–1600 cm⁻¹) revealed partial azo dye decomposition. XRD analysis indicated predominantly amorphous structures at low TFA content, transitioning to more crystalline domains when TFA was equal to or exceeded DCM, notably around a 5:5 ratio. This increase in crystallinity strengthens intermolecular interactions and contributes to improved mechanical behavior; indeed, the Young’s modulus reached approximately 1.8 MPa under these conditions. Although triboelectric outputs generally remained in the millivolt range, the highest (∼70 mV) were observed at 5:5 and 3:7, then dropped to about 30 mV with excessive TFA—likely due to over-decomposition of the dye and polymer, which can hinder efficient charge generation pathways. Notably, this approach demonstrates that strong mechanical and triboelectric properties can be realized without fully removing or degrading both the dye and PET, thereby reducing process complexity by omitting separate decolorization or high-temperature treatments. Further work to quantify dye decomposition and assess long-term stability could advance the industrial feasibility of these sustainable, high-value recycled PET materials. Moreover, by leveraging the residual dyes inherently present in recycled PET garments—rather than removing them—we simplify the dye-separation process and discover new avenues for resource-efficient, triboelectric nanofibrous materials.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136803"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760900","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":"One-pot and single-component fabrication of multifunctional cotton fabrics with antibacterial and hydrophobic properties using a block copolymer","authors":"Liwen Shen ,&nbsp;Jun Liu ,&nbsp;Shuangfei Xiang ,&nbsp;Chunyan Wu ,&nbsp;Shujun Zhao ,&nbsp;Feiya Fu ,&nbsp;Fang Xu ,&nbsp;Guokang Shen ,&nbsp;Xiangdong Liu","doi":"10.1016/j.colsurfa.2025.136780","DOIUrl":"10.1016/j.colsurfa.2025.136780","url":null,"abstract":"<div><div>Multifunctional cotton fabrics have attracted considerable attention due to their versatility and adaptability in various areas of everyday life. Nevertheless, the one-pot fabrication of multifunctional textiles using only a single reagent remains extremely challenging. This approach streamlines the conventional multi-functionalization process and forges novel trajectories for the development of high-performance textile materials enabled by a solitary reagent. Herein, we propose a straightforward approach that uses an innovative block copolymer as the finishing reagent to provide simultaneously both antibacterial and hydrophobic properties to cotton fabrics. The block copolymer was synthesized via a RAFT polymerization of methacrylate (MMA) and dimethylaminoethyl methacrylate (DMA) followed by a quaternization using bromohexadecane. Afterward, the block copolymer underwent self-assembly, resulting in the formation of an aqueous emulsion, which was then applied onto cotton fiber surfaces using an immersion heating process. Characterized by an abundance of particles with a 195-nm average size, the surface morphology of the resulting coating on the fibers imparted highly enduring and effective antibacterial, self-cleaning, and antifouling functionalities to the cotton fabrics. Furthermore, to elucidate the excellent antibacterial effect, an innovative contact-responsive mechanism involving the dynamic action of the copolymer was proposed. With its exceptional versatility and efficiency, this one-pot approach shows great promise for a wide range of industrial applications.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136780"},"PeriodicalIF":4.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747615","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}