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

{"title":"A novel freezing-sublimation-based method for enhancing deposition uniformity of colloidal particles in inkjet 3D printing: A proof-of-concept study","authors":"Haipeng Zhang,&nbsp;Xiaoxiao Zhang,&nbsp;Yang Liu","doi":"10.1016/j.colsurfa.2025.136513","DOIUrl":"10.1016/j.colsurfa.2025.136513","url":null,"abstract":"<div><div>Inkjet-based three-dimensional (3D) printing is widely used for fast and efficient non-contact manufacturing, yet it suffers from several drawbacks, such as coarse resolution, lack of adhesion, manufacturing inconsistency, and uncertain final part mechanical properties. These undesirable effects are related to complex flow phenomena in colloidal droplets in inkjet 3D printing, particularly the internal flows and droplet deformations during the deposition and drying processes. These challenges are due to the colloidal suspension droplets being kept in the liquid state during printing. To overcome these disadvantages, this paper presents a novel freezing-sublimation-based inkjet 3D printing concept that freezes the colloidal droplets upon impact followed by sublimation, eliminating the undesirable particle transport and fluid motions during deposition. A series of experiments were conducted to characterize the colloidal droplet behaviors during the impinging/freezing and sublimation processes and evaluate the effects of the freezing process on droplet impinging dynamics as well as the final deposition patterns through sublimation. It was demonstrated that the deposition patterns obtained from this new method are much more uniform than the conventional evaporation-based deposition method. Both qualitative and quantitative methods were applied to analyze the colloidal droplet profiles during the printing process (impinging, freezing, and sublimation), as well as the final deposition patterns. The study shows promising results of using this new method, providing a foundation for the development of the novel freezing-sublimation-based inkjet 3D printing technique.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136513"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511108","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":"Integrating experimental, surface activity, and theoretical computing methodologies to assess potassium polyoxyethylene laury ether phosphate as corrosion inhibitor","authors":"M.A. Deyab ,&nbsp;Q. Mohsen ,&nbsp;Omnia A.A. El-Shamy","doi":"10.1016/j.colsurfa.2025.136519","DOIUrl":"10.1016/j.colsurfa.2025.136519","url":null,"abstract":"<div><div>In the present investigation, the integrating experimental, surface activity, and theoretical computing methodologies are employed to evaluate the corrosion inhibitor properties of an anionic surfactant (potassium polyoxyethylene laury ether phosphate (POE-SURF)) in a 1.0 HCl solution for steel (AISI 1008). The experimental investigations demonstrated that the highest inhibitory effectiveness of approximately 98.8 % was achieved with 0.1 mM of POE-SURF. The physical adsorption of POE-SURF on the AISI 1008 surface was conducted by the inhibitive effect, which occurred based on the Langmuir adsorption isotherm. POE-SURF acted as a mixed kind's inhibitor. The presence of POE-SURF significantly raises the energy barrier for the corrosion process, resulting in notably higher activation energy of 70.58 kJ mol⁻¹ .The small energy gap (ΔE_g) confirms POE-SURF's strong inclination to coordinate with metal surfaces by electron donation. A Mulliken charge of the POE-SURF confirms that the negative charged atom can adsorb on the metal surface by donating electron to the 3^d orbital. The examined surfactant POE-SURF exhibits outstanding surface activities, leading to good adsorption behavior</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136519"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511109","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-corrosion, anti-icing, and mechanically robust superhydrophobic coating based on Kaolin particles","authors":"Wenjie Zhang ,&nbsp;Xiaozhuo Liu ,&nbsp;Chuanbo Zheng ,&nbsp;Binbin Zhang","doi":"10.1016/j.colsurfa.2025.136504","DOIUrl":"10.1016/j.colsurfa.2025.136504","url":null,"abstract":"<div><div>In this study, we developed a superhydrophobic coating on Q235 carbon steel using a layer-by-layer spray-coating technique, employing Kaolin particles, organosilanes, and epoxy resin as raw materials. The surface wettability, morphologies, chemical compositions, self-cleaning, mechanical stability, anti-icing, and anti-corrosion properties were systematically investigated. The research results demonstrate that the prepared superhydrophobic coating exhibits excellent mechanical stability, maintaining its superhydrophobic characteristics even after undergoing 420 abrasion cycles and 180 tape-peeling cycles. In ice formation tests at −10°C and −15°C, it was found that the icing times of water droplet on substrate protected by the superhydrophobic coating were greatly prolonged, indicating a superior delayed icing performance. Additionally, the coating shows durable and stable anti-corrosion performance with surface charge transfer resistance and low-frequency modulus values increased by seven orders of magnitude. The developed superhydrophobic coating can also be successfully applied to various substrate surfaces using the spray-coating method, demonstrating strong substrate compatibility. The realization of these comprehensive properties will facilitate the gradual adoption of superhydrophobic materials for functional protective applications on numerous facility and equipment surfaces.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136504"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511115","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":"Durable superhydrophobic PTFE-rich/Acrylic rGO Loaded Self-lubricating Coating to Advance Wear and Long-time Corrosion: Experimental studies and molecular dynamics simulation of friction and corrosive agents penetration","authors":"Hadi Khalife,&nbsp;Milad Rezaei,&nbsp;Sepideh Amjad-Iranagh","doi":"10.1016/j.colsurfa.2025.136518","DOIUrl":"10.1016/j.colsurfa.2025.136518","url":null,"abstract":"<div><div>An important challenge in chemical industries is the development of polymer-based coatings that can effectively resist wear and penetration of corrosive agents in the long run. In this work, a multifunctional coating with superhydrophobicity, self-cleaning, self-lubricating surface, and anti-corrosion properties was prepared by the composition of polytetrafluoroethylene (PTFE), acrylic (AC) resin, and reduced graphene oxide (rGO) particles. The TGA analysis shows that the PTFE/AC coating structure can be stable up to 200 °C due to the high content of PTFE. The EIS, salt spray, and polarization revealed that adding rGO to a PTFE/AC composite increased the corrosion performance by almost one order of magnitude compared to a coating without rGO. The presence of acrylic in the coating significantly reduced the wear rate. In addition, MD simulation results confirm that using rGO particles leads to an improved coating structure in terms of wear and corrosion resistance. Furthermore, the presence of rGO particles results in a decrease of 14 % (0.099 A².ps⁻¹) and 79 % (0.007 A².ps⁻¹) in the diffusion coefficients of water and chloride, respectively. Finally, PTFE/AC/rGO met the research goal as a multifunctional coating with long-term corrosion stability, low friction coefficient surface, self-cleaning performance and water contact angle (WCA) of 165°.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136518"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534062","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":"Hemin-modified crosslinked glucose oxidase aggregates for efficient degradation of tetracycline and detection of phenol derivatives","authors":"Xiaorong Xiong,&nbsp;Yizhuo Lu,&nbsp;Yan Peng,&nbsp;Meishuang Qiu,&nbsp;Tianyou Chen,&nbsp;Zushun Xu","doi":"10.1016/j.colsurfa.2025.136516","DOIUrl":"10.1016/j.colsurfa.2025.136516","url":null,"abstract":"<div><div>The removal of antibiotics from pharmaceutical wastewater is of paramount importance from an environmental point of view. Although various techniques have been developed, it is still highly demanded to develop environmentally benign approaches that can make better use of chemicals in pharmaceutical wastewater for chemoenzymatic processes. Here we combine glucose oxidase (GOx) and hemin toward chemoenzymatic cascades for the degradation of tetracycline (TC) and the detection of phenol derivatives. Hemin was covalently attached to pre-crosslinked GOx aggregates through the Ugi four-component reaction, which could further crosslink the aggregates. The close proximity between GOx and hemin enables the rapid consumption of H₂O₂ generated from the oxidation of glucose. This consumption prevents the accumulation of H₂O₂ and in turn overcomes activity inhibition. The structure-activity relationship of hemin-modified crosslinked GOx aggregates (HCGOAs) was systematically investigated. They displayed excellent catalytic performance in the degradation of TC and the detection of phenol and bisphenol A. The HCGOAs are promising for pharmaceutical wastewater treatments.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136516"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488624","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 and study of quartz yarn with good permeability by controlling the content of polar components in wetting agent","authors":"Yanxia Xie ,&nbsp;Junjie Zhu ,&nbsp;Liangyi Lv ,&nbsp;Chunsheng Ai ,&nbsp;Xinjian Zhu ,&nbsp;Tianchen Zheng ,&nbsp;Jie Yang ,&nbsp;Hongjie Wang","doi":"10.1016/j.colsurfa.2025.136510","DOIUrl":"10.1016/j.colsurfa.2025.136510","url":null,"abstract":"<div><div>Quartz yarn was widely used in glass fiber reinforced composites, while the defect derived from the poor permeability of resin solution in quartz yarn restricted its application. Although the permeability was widely studied and several test methods were proposed, the effect of the components of wetting agent on permeability was seldom reported, and an accurate method to characterized the permeability of fiber bundle needed to be explored. In this study, a new type of wetting agent was prepared to produce quartz yarn with high permeability by controlling the chemical components of the wetting agent, and the effects of them on permeability, wetting ability, bunching property, and mechanism were discussed, and a relatively accurate permeability method was proposed. The results showed the chemical components played a key role in affecting the permeability of quartz yarn. The wetting agent with low content of polar components (COP) and low content of solid content (COS) exhibited high permeability for quartz yarn, possessing better properties than commercial yarns. When the COP was high, the precipitated coupling agent lamellae on the surface of the yarn reduced the gap between the yarn fibers, resulting in a larger adhesive attachment rate and bunching property of the yarns. The mechanism of the action from the wetting agent components was analyzed by the FTIR spectrum, indicating that the COS and COP affected the fluidity and permeability of the resin between fibers. The study revealed the mechanism of chemical components of wetting on the permeability of quartz yarn and proposed a method to test the permeability of resin solution in quartz yarn. The results of this study provided experimental data and reference basis for the development of functional wetting agent.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136510"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488197","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":"An artificial intelligence image-based approach for colloid detection in saturated porous media","authors":"Behzad Mirzaei ,&nbsp;Hossein Nezamabadi-pour ,&nbsp;Amir Raoof ,&nbsp;Reza Derakhshani","doi":"10.1016/j.colsurfa.2025.136503","DOIUrl":"10.1016/j.colsurfa.2025.136503","url":null,"abstract":"<div><div>Colloids in saturated porous media, such as soil and aquifers, play a critical role in the transport of nutrients, pollutants, and microorganisms. Their movement can influence the quality of groundwater and the effectiveness of filtration systems. Detecting colloids in these environments is essential for understanding contaminant spread, predicting soil and groundwater behavior, and managing water resources. Accurate detection helps in designing remediation strategies and ensures the safe use of natural resources, particularly in environmental engineering and hydrogeology. In this paper, we apply an artificial intelligence approach with the help of deep learning to detect colloids, which is a prerequisite for subsequent steps in porous media research. Since colloids are tiny particles and do not have enough information to identify, firstly we use an image processing technique called the dilation operation to improve distinguishing features of colloids for the detection process. This operation leads to achieving more accurate results for the detection of tiny colloids. Then, we propose a lightweight deep convolutional neural network to detect colloids automatically without the requirement for manual analysis. In our experiments, Precision, Recall, <em>F</em>-measure, and TCR metrics are employed for assessment. The experimental results show the efficiency and effectiveness of the proposed approach compared to six image processing methods in the detection process of colloids.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136503"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protein imprinted CaAlg/CaSiO3 hybrid hydrogel modified electrochemical sensor for sensitive detection of BSA","authors":"Yuansheng Lin ,&nbsp;Zhilong Guo ,&nbsp;Suling Dong ,&nbsp;Yixin Li ,&nbsp;Bohong Kan ,&nbsp;Kongyin Zhao ,&nbsp;Sidi Li ,&nbsp;Zhengchun Yang","doi":"10.1016/j.colsurfa.2025.136506","DOIUrl":"10.1016/j.colsurfa.2025.136506","url":null,"abstract":"<div><div>Hydrogels showed superiorities in molecularly imprinting sensors for detecting biomolecules owing to their stimulus-responsive nature. However, the excessive swelling of hydrogel during the elution process damages the imprinting cavities, leading to a reduction in sensitivity. In this study, a molecularly imprinted electrochemical sensor was designed for rapid protein recognition. The sensor utilized a composite hydrogel based on hybrid cross-linked calcium alginate/calcium silicate (CaAlg/CaSiO₃) to mitigate the excessive swelling of the CaAlg hydrogel. The preparation involved coating a bare carbon electrode with a sodium silicate-sodium alginate (Na₂SiO₃-NaAlg) mixed solution, cross-linking with CaCl₂ solution, and eluting bovine serum albumin (BSA) with Tris-HCl solution. The incorporation of CaSiO₃ nanoparticles stabilized the organic-inorganic hybrid structure, enhancing the hydrogel's resistance to swelling and maintaining cavity integrity. The molecularly imprinted polymer (MIP) sensor demonstrated high selectivity for BSA, excellent repeatability, long-term stability, and reproducibility, showing the potential for improved sensitivity in biomolecule detection.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136506"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488194","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":"Highly efficient CeO2/GO co-doped MoS2 catalyst for electrocatalytic hydrogen evolution performance","authors":"Yanhe Han ,&nbsp;Hao Yao ,&nbsp;Han Xu ,&nbsp;Qingpeng Zhao ,&nbsp;Nannan Wang ,&nbsp;Shizong Wang ,&nbsp;Xuejiao Ma","doi":"10.1016/j.colsurfa.2025.136525","DOIUrl":"10.1016/j.colsurfa.2025.136525","url":null,"abstract":"<div><div>Molybdenum disulfide (MoS₂) has garnered significant attention as a highly efficient catalyst for hydrogen production due to its high activity, cost-effectiveness, and abundant availability. MoS₂ has the disadvantages of poor electrical conductivity and slow electron transfer rate. Here in, a strategy of regulation of facet of MoS₂ was developed to enhance the activity of MoS₂ for hydrogen production. The results show that the incorporation of cerium dioxide (CeO₂) and graphene oxide (GO) in MoS₂ promoted the growth of MoS₂ (002) and CeO₂ (111) crystal surface, which increased the number of active sites and the surface area of the MoS₂ electrode. In addition, the coupled facets of (002) of MoS₂ and (111) of CeO₂ reduced the intermediate energy barrier of the hydrolyzed ionization process for hydroxyl receptors, resulting in exceptional hydrogen evolution reaction (HER) performance and extended electrode lifespan. The TiO₂/MoS₂-CeO₂/GO electrode achieved the current density of 10 mA/cm² at an overpotential of 120 mV, a specific capacitance of 432.5 mF/cm² and an AC impedance of 3.25Ω. The maximum hydrogen production and hydrogen production efficiency reached 24.54 mmol/(h·cm²) and 69.84 %, respectively, which are 1.53 times and 2.09 times higher than those of TiO₂/MoS₂ electrode, respectively. The Volmer-Heyrovsky mechanism for electrocatalytic hydrogen evolution was analyzed, and the stability and reusability of TiO₂/MoS₂-CeO₂/GO electrode were confirmed through 3000 cycles of CV test and 20 h water electrolysis testing. Additionally, the effects of electrode material, input voltage, electrolyte concentration and electrolyte temperature on hydrogen production were investigated. The work provides reference for designing high-performance electrocatalytic hydrogen evolution electrode materials.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136525"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511219","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":"Excellent mechanical and thermal conductivity performance of polyvinyl alcohol film doped SiO2@Ti3C2Tx MXene via electrostatic nano-particle assembly","authors":"Yaling Zhang ,&nbsp;Guojun Cheng ,&nbsp;Zhongfeng Tang ,&nbsp;Qi Jin ,&nbsp;Guoxin Ding ,&nbsp;Xianglong Wan","doi":"10.1016/j.colsurfa.2025.136507","DOIUrl":"10.1016/j.colsurfa.2025.136507","url":null,"abstract":"<div><div>Improving the thermal conductivity of the PVA film depends on the construction of efficient thermal conductivity network. However, the agglomeration and high thermal resistance of the nanoparticles limit the high thermal conductivity construction of the PVA-based films. The nano-SiO₂ particles were modified using KH550 results in an even distribution, and then deposited onto the Ti₃C₂T_x MXene surfaces by electrostatic self-assembly. The dispersion and interaction of the modified SiO₂/Ti₃C₂T_x MXene (mST) within the PVA matrix were investigated, and mST/PVA (mSTP) films were prepared in this job. The treatment of the mST fillers ensures uniform distribution and reduces interface resistance. The mechanical properties of the mSTP films were significantly improved, with the tensile strength and elongation at break increasing by 183 % and 115 %, respectively. The in-plane and out-plane thermal conductivity of the mSTP-7.5 film reached 2.11 W·m⁻¹·K⁻¹ and 0.58 W·m⁻¹·K⁻¹, respectively. The synergy between Ti₃C₂T_x MXene and nano-SiO₂ forms a controllable cross-linking structure, greatly enhancing thermal and mechanical properties. It not only offer a practical technical approach but also provide new theoretical insights for the design and optimization of the thermally conductive composites.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"713 ","pages":"Article 136507"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509344","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}