Colloids and Surfaces A: Physicochemical and Engineering Aspects最新文献_第4页

Cationization of wool surfaces via chitosan-citric acid crosslinking: A metal-free strategy for charge-mediated dyeing and antimicrobial activity 通过壳聚糖-柠檬酸交联的羊毛表面阳离子化：一种电荷介导的无金属染色和抗菌活性策略

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-01-31 DOI: 10.1016/j.colsurfa.2026.139792

Fatim Ezahra Mesrar , Mohamed Jeddi , Mohammed Danouche , Omar Cherkaoui , Hamza Tachallait , Khalid Bougrin , Rachid Benhida

{"title":"Cationization of wool surfaces via chitosan-citric acid crosslinking: A metal-free strategy for charge-mediated dyeing and antimicrobial activity","authors":"Fatim Ezahra Mesrar , Mohamed Jeddi , Mohammed Danouche , Omar Cherkaoui , Hamza Tachallait , Khalid Bougrin , Rachid Benhida","doi":"10.1016/j.colsurfa.2026.139792","DOIUrl":"10.1016/j.colsurfa.2026.139792","url":null,"abstract":"<div><div>Natural dyeing of protein fibers remains limited by the weak affinity of wool for most plant-based chromophores, which often requires metallic mordants to achieve acceptable color strength and fastness. Although chitosan is widely applied directly onto wool as a biomordant to introduce cationic sites, its performance is constrained by the physical nature of the coating and does not provide the consistency needed for reliable metal-free dyeing. To address these limitations, this study investigates a chitosan-citric acid treatment that enables the formation of a crosslinked cationic network on wool fibers. Esterification reactions involving citric acid, chitosan, and accessible keratin functional groups lead to a chemically stabilized surface modification that maintains a positive charge over a broad pH range. FTIR, SEM-EDS, AFM, and ζ-potential measurements confirm the formation of new ester linkages and the presence of a uniform modified surface, with the isoelectric point shifting to around pH 10.1. This cationic character significantly improves the interaction of wool with the polyphenolic compounds of pomegranate peel extract, enabling metal-free dyeing with higher color strength and improved fastness. Kinetic and equilibrium data indicate a surface-controlled process on a heterogeneous surface, while the observed decrease in optical band-gap energy suggests strengthened charge-transfer interactions after grafting. In parallel, the treated fibers exhibit notable antibacterial activity, achieving complete inhibition of <em>Staphylococcus aureus</em> and a strong reduction of <em>Escherichia coli</em>.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139792"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171343","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}

引用次数: 0

Effect of lignin content in nano-cellulose on the performance of surfactant-stabilized fracturing foam 纳米纤维素中木质素含量对表面活性剂稳定压裂泡沫性能的影响

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-05 DOI: 10.1016/j.colsurfa.2026.139850

Sicheng Zhu , Jianwei Zhong , Zhaojian Feng , Yushi Cui , Chaoyan Xiao , Huan Yang , Xiaorong Yu , Gaoshen Su

{"title":"Effect of lignin content in nano-cellulose on the performance of surfactant-stabilized fracturing foam","authors":"Sicheng Zhu , Jianwei Zhong , Zhaojian Feng , Yushi Cui , Chaoyan Xiao , Huan Yang , Xiaorong Yu , Gaoshen Su","doi":"10.1016/j.colsurfa.2026.139850","DOIUrl":"10.1016/j.colsurfa.2026.139850","url":null,"abstract":"<div><div>The stability of fracturing foams at reservoir temperatures poses a significant challenge. This study explores the use of lignin-containing cellulose nanofibrils (<span>L</span>-CNF) as an eco-friendly stabilizer to tackle this issue. We compared the foam-stabilizing performance of <span>L</span>-CNF with varying lignin content against lignin-free cellulose nanofibrils (CNF) and a surfactant baseline. Key performance indicators, such as foam stability, rheological properties, and proppant-carrying capacity, were assessed. The findings revealed that <span>L</span>-CNF with optimal lignin content significantly improved foam stability. For example, at 90 °C (363.15 K), the drainage half-life of sodium dodecylbenzene sulfonate (SDBS) foam increased twelvefold with the addition of <span>L</span>-CNF. Additionally, the <span>L</span>-CNF-stabilized foam prevented proppant settling for over 15 h, demonstrating excellent sand-carrying capacity. Mechanistic analysis identified a multi-stage stabilization process: initially, <span>L</span>-CNF enhances foam viscosity during the drainage stage; subsequently, it forms a nano-scale network that impedes drainage in the mid-stage; and finally, it aggregates into a robust nanofiber network in the late stage, ensuring stability throughout the foam's lifecycle. These findings offer fundamental insights into the mechanisms and performance of <span>L</span>-CNF as a high-temperature stabilizer for environmentally friendly fracturing foams.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139850"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185431","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}

引用次数: 0

Determination of mangiferin via a smartphone-assisted fluorescence system with blue-emitting carbon quantum dots 智能手机辅助荧光系统蓝碳量子点测定芒果苷

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-10 DOI: 10.1016/j.colsurfa.2026.139930

Zhifeng Cai, Lingjie Hou, Qun Cai, Yaxuan Feng, Yiran Zhang, Yuqi Zhang

{"title":"Determination of mangiferin via a smartphone-assisted fluorescence system with blue-emitting carbon quantum dots","authors":"Zhifeng Cai, Lingjie Hou, Qun Cai, Yaxuan Feng, Yiran Zhang, Yuqi Zhang","doi":"10.1016/j.colsurfa.2026.139930","DOIUrl":"10.1016/j.colsurfa.2026.139930","url":null,"abstract":"<div><div>Mangiferin is beneficial to human health. However, excessive use can cause side effects. Herein, we fabricated a hydrothermal strategy for the development of blue-emissive fluorescence carbon quantum dots (BCQDs) for the measurement of mangiferin. An excellent fluorescence emission signal around 468.7 nm was observed at the excitation wavelength of 363.4 nm. Some amazing features for BCQDs could be observed, such as exceptional stability, radiation resistance, salt resistance, and water solubility. The BCQDs displayed a specific response for mangiferin, leading to fluorescence weakening in a linear range of 0.5–100 μM. And the detection limit was 0.061 μM. The fluorescence quenching mechanism was assigned to the inner filter effect. Furthermore, two different real samples were sensitively determined to mangiferin using this as-prepared BCQDs-based nanosensor, generating satisfactory results with recoveries of 94.8–104.8 %. Notably, the apparent color variation from blue to green in the presence of mangiferin suggested smartphone-based visual inspection, indicating emphatic potential for on-site sensing. Moreover, the BCQDs-based sensing system had exceptional greenness and blueness.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139930"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185428","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}

引用次数: 0

Recycle use of bio-oil from activation via impregnation of homologous biomass for second-round activation for enhancing mass yields and pore development of activated carbon 利用同源生物质浸渍活化后的生物油进行二次活化，提高活性炭的质量收率和孔隙发育

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-05 DOI: 10.1016/j.colsurfa.2026.139856

Xiao Cheng , Xin Zhong , Chao Li , Shu Zhang , Baoqiang Lv , Jianhong Zhu , Xun Hu

{"title":"Recycle use of bio-oil from activation via impregnation of homologous biomass for second-round activation for enhancing mass yields and pore development of activated carbon","authors":"Xiao Cheng , Xin Zhong , Chao Li , Shu Zhang , Baoqiang Lv , Jianhong Zhu , Xun Hu","doi":"10.1016/j.colsurfa.2026.139856","DOIUrl":"10.1016/j.colsurfa.2026.139856","url":null,"abstract":"<div><div>Bio-oil is one of the major products in activation of biomass, which could be a liquid waste if not properly recycled. Herein, we proposed a method for reuse of bio-oil as a feedstock for activation by impregnation of homologous bio-oil to walnut shell or rice husk, which were subjected to polymerization pretreatment before being activated with K<sub>2</sub>C<sub>2</sub>O<sub>4</sub> at 800 °C. The results showed that the addition of bio-oil could induce cross-linking reactions between organics in the bio-oil and nascent activated carbon (AC), enhancing yield of resulting AC (4 times of AC-shell from activation of walnut shell without loading bio-oil). The S<sub>BET</sub> was also much higher for AC-shell/oil (1277.0 versus 711.3 m<sup>2</sup>g<sup>−1</sup> for AC-shell) and more mesopores (5.3 % versus 1.2 %) and macropores were generated. Higher mass yields of AC (60.5 % versus 76.7 %) and higher S<sub>BET</sub> (615.4 versus 994.4 m<sup>2</sup>g<sup>−1</sup>) were also observed in the activation of rice husk impregnated with bio-oil. This occurred because the bio-oil contributed a wealth of extra aliphatic structures, which in turn intensified the cracking reactions in the subsequent activation process. Additionally, cross-interactions between bio-oil and nascent AC formed carbon-rich AC with more disordered graphitic structures, enhanced hydrophilicity, and increased capacity for adsorption of phenol. The bio-oil could also “paint” the AC to form a smooth surface.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139856"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185625","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}

引用次数: 0

Phytic acid–loaded Ce-based metal–organic frameworks enabling synergistic interfacial regulation for active/passive corrosion protection 植酸负载的铈基金属有机框架，可协同界面调节主动/被动腐蚀防护

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-06 DOI: 10.1016/j.colsurfa.2026.139873

Yun-Xi Jiang , Shu-Fei Yin , You-Lin Zhang , Pan Liu , Hao Li , Lian-Kui Wu , Fa-He Cao

{"title":"Phytic acid–loaded Ce-based metal–organic frameworks enabling synergistic interfacial regulation for active/passive corrosion protection","authors":"Yun-Xi Jiang , Shu-Fei Yin , You-Lin Zhang , Pan Liu , Hao Li , Lian-Kui Wu , Fa-He Cao","doi":"10.1016/j.colsurfa.2026.139873","DOIUrl":"10.1016/j.colsurfa.2026.139873","url":null,"abstract":"<div><div>Conventional epoxy coatings rely primarily on passive barrier effects and therefore lack the ability to regulate interfacial corrosion processes after local damage. Here, a physicochemically regulated active/passive epoxy coating is developed by incorporating a phytic acid–loaded cerium-based metal–organic framework (CeMOF-P) as a functional colloidal additive. Owing to the confinement and coordination effects of the CeMOF framework, phytic acid is stably immobilized and uniformly dispersed, resulting in improved coating compactness and interfacial adhesion. Electrochemical impedance spectroscopy shows that the CeMOF-P–modified coating exhibits markedly enhanced corrosion resistance and, more importantly, a characteristic non-monotonic impedance evolution with pronounced impedance recovery upon damage, indicating an interfacial regulation mechanism beyond passive shielding. Mechanistic analyses reveal that corrosion-triggered, coordinated release of Ce<sup>3+</sup>/Ce<sup>4+</sup> species and phytic acid leads to the in situ formation of a compact cerium–phosphate–rich interfacial film, which simultaneously suppresses anodic dissolution and cathodic reactions. These results demonstrate that Ce–P synergy enables continuous interfacial regulation rather than transient passivation, providing mechanistic insight into the role of coordination chemistry and colloidal confinement in governing interfacial electrochemical behavior and stability in protective coating systems.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139873"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185626","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}

引用次数: 0

Integrated polydopamine-mediated PB@BP nanohybrid coating on titanium implants for synergistic antibacterial, antioxidant, and pro-osteogenic functionalities 整合多多巴胺介导PB@BP纳米杂化涂层在钛植入体上的协同抗菌、抗氧化和促骨功能

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-04 DOI: 10.1016/j.colsurfa.2026.139834

Qilong Wu , Xin Wang , Zongyi Li , Ruofeng Yang , Yuli Fan , Jiaxuan Lyu , Jie Wang , Shaojie Wang , Yan Wei , Ziwei Liang , Weimo Han , Liqin Zhao , Di Huang

{"title":"Integrated polydopamine-mediated PB@BP nanohybrid coating on titanium implants for synergistic antibacterial, antioxidant, and pro-osteogenic functionalities","authors":"Qilong Wu , Xin Wang , Zongyi Li , Ruofeng Yang , Yuli Fan , Jiaxuan Lyu , Jie Wang , Shaojie Wang , Yan Wei , Ziwei Liang , Weimo Han , Liqin Zhao , Di Huang","doi":"10.1016/j.colsurfa.2026.139834","DOIUrl":"10.1016/j.colsurfa.2026.139834","url":null,"abstract":"<div><div>Titanium (Ti) implants face significant clinical challenges due to their biological inertness and susceptibility to peri-implant infections and oxidative stress. In this study, a multifunctional composite coating was engineered by immobilizing Prussian blue@black phosphorus (PB@BP) nanohybrids onto alkali-heat-treated titanium surfaces via a polydopamine (PDA) adhesive layer. The coating exhibited superior structural stability and improved hydrophilicity. Under 808 nm near-infrared (NIR) irradiation, it demonstrated power density-dependent photothermal antibacterial efficacy, reaching temperatures up to 59.6 °C. Specifically, the PDA/PB@BP + NIR group achieved remarkable inhibition rates of 99.76 ± 0.24 % against <em>Escherichia coli</em> and 99.27 ± 0.23 % against <em>Staphylococcus aureus</em>, effectively minimizing the risk of implant-associated infections. Furthermore, the coating promoted HUVECs migration, achieving a scratch healing rate of 70.57 % within 36 h. The PB@BP nanostructures functioned as potent nanozymes, effectively scavenging excessive reactive oxygen species (ROS) to protect cells from oxidative damage. Meanwhile, the sustained degradation of BP nanosheets provided a continuous supply of phosphate ions, which synergistically with the PDA layer, accelerated the differentiation and biomineralization of MC3T3-E1 cells. Collectively, the PDA/PB@BP composite coating orchestrates a bioactive microenvironment that integrates photothermal antibacterial, antioxidant, pro-angiogenic, and pro-osteogenic functionalities. This study provides a versatile strategy and a solid experimental foundation for the design of next-generation titanium-based implants with advanced regenerative and anti-infective capabilities.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139834"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185630","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}

引用次数: 0

Vapor deposition assisted click chemical reaction for controllable design of superhydrophobic core-sheath micro-nanofibers 气相沉积辅助点击化学反应在超疏水芯鞘微纳米纤维可控设计中的应用

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-08 DOI: 10.1016/j.colsurfa.2026.139901

Ruyi Liang, Jingying Xu, Zhao Zhang, Xin Liu, Yinger Ye, Mengyao Zhao, Zhiyu Li, Wanjing Li, Bin Yang, Jing Zhou, Xianglong Li

{"title":"Vapor deposition assisted click chemical reaction for controllable design of superhydrophobic core-sheath micro-nanofibers","authors":"Ruyi Liang, Jingying Xu, Zhao Zhang, Xin Liu, Yinger Ye, Mengyao Zhao, Zhiyu Li, Wanjing Li, Bin Yang, Jing Zhou, Xianglong Li","doi":"10.1016/j.colsurfa.2026.139901","DOIUrl":"10.1016/j.colsurfa.2026.139901","url":null,"abstract":"<div><div>Effectively separating oil-water emulsions remains a critical worldwide challenge requiring innovative solutions. In previous studies, we used click chemistry to have a high separation efficiency of oil-water emulsions. However, the degree of reaction between thiols and membranes is difficult to control. Either an excessive or insufficient amount of thiol will have a significant impact on the morphology and properties of the final fibers. Based on this, we developed a novel controllable strategy for the stable superhydrophobic modification of core-sheath micro-nanofibers. We converted the original single-step approach into a sequential two-step process, which involved pre-sulfhydration followed by click chemistry reaction. In detail, we introduced the sulfhydryl group on the surface of fibrous membranes by vapor deposition, and then grafted tetramethyltetravinylcyclotetrasiloxane (V4) on the surface of fibrous membranes by thiol-ene click chemistry reaction. Results showed that the surface of PAN/PVDF@HBPUS-CLICK was rough and had a spherical structure. After we rubbed 50 times, the contact angle was above 153.6° ± 1.1°, the scrolling angle was 8.5° ± 0.7°, showing good wear resistance. In addition, after 50 cycles, the separation efficiency of PAN/PVDF@HBPUS-CLICK fibrous membranes was still above 95 %. The results showed the membranes maintained high separation efficiency across low- to high-viscosity water-in-oil emulsions, highlighting the strong application prospects of PAN/PVDF@HBPUS-CLICK for oil-water separation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139901"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185283","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}

引用次数: 0

Degree of polymerization controls bound/free water balance and water-holding in multifunctional amphiphilic polymer esters 聚合度控制着多功能两亲性聚合物酯的结合/自由水平衡和持水量

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-06 DOI: 10.1016/j.colsurfa.2026.139858

Yuko Maema Anda , Naoko Hanada Yamazaki , Kai Yoshioka , Fan Meng , Toshinori Saida , Keiichi Oyama , Noriyoshi Arai

{"title":"Degree of polymerization controls bound/free water balance and water-holding in multifunctional amphiphilic polymer esters","authors":"Yuko Maema Anda , Naoko Hanada Yamazaki , Kai Yoshioka , Fan Meng , Toshinori Saida , Keiichi Oyama , Noriyoshi Arai","doi":"10.1016/j.colsurfa.2026.139858","DOIUrl":"10.1016/j.colsurfa.2026.139858","url":null,"abstract":"<div><div>Moisture retention is a key determinant of sensory performance and stability in emulsified formulations, yet the molecular basis of water-holding in amphiphilic polymer esters used in cosmetics remains insufficiently elucidated. In this study, two compounds with different degrees of polymerization were synthesized from Polyglyceryl-2 Dipolyhydroxystearate (<span>L</span>-PD and S-PD), a water-in-oil emulsifier widely used in cosmetics. Hydrate formation revealed that <span>L</span>-PD exhibited a water-holding capability of 434 %, compared to 152 % for S-PD, with distinct hydrate structures. Based on the hypothesis that this difference in water-holding capability was due to differences in the degree of polymerization, the water-holding mechanism was investigated using both <em>in vitro</em> and <em>in silico</em> approaches. Experimental results showed that water in <span>L</span>-PD hydrates existed as both bound and free water, whereas S-PD hydrates contained predominantly free water. Simulations showed that differences in the degree of polymerization resulted in variations in the types of polymer configurations that could be adopted during water-holding. A higher degree of polymerization was found to favor polymer configurations with stronger affinity for water, promoting bound-water formation and enhancing the water-holding capability. This combined experimental and computational approach provides novel insights into the water-holding mechanism and is expected to aid the design of high-performance moisturizing materials for cosmetic applications.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139858"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185290","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}

引用次数: 0

Surface modification methods for enhancing corrosion resistance and antibacterial properties of titanium alloy – Potential for underwater antifouling applications 提高钛合金耐腐蚀和抗菌性能的表面改性方法。水下防污应用的潜力

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-07 DOI: 10.1016/j.colsurfa.2026.139888

Pengan Fu , Haonan Yu , Haojie Bai , Yifei Wang

{"title":"Surface modification methods for enhancing corrosion resistance and antibacterial properties of titanium alloy – Potential for underwater antifouling applications","authors":"Pengan Fu , Haonan Yu , Haojie Bai , Yifei Wang","doi":"10.1016/j.colsurfa.2026.139888","DOIUrl":"10.1016/j.colsurfa.2026.139888","url":null,"abstract":"<div><div>To meet the urgent demand for material surface performance in harsh marine environments, this study proposes an innovative, environmentally friendly, and low-cost integrated surface modification strategy. This strategy relies solely on nanosecond laser processing, without requiring any additional coatings. By sequentially performing micro-texturing and defocused irradiation on the titanium alloy surface, a composite surface consisting of micro-textures and a nano-oxide film was successfully fabricated. Comprehensive characterization revealed significant changes in the physicochemical properties of the modified surface. Performance test results demonstrated that the composite surface, formed by micro-pit textures and the nano-oxide film, exhibits outstanding comprehensive performance: its charge transfer resistance increased by approximately 2.5 times compared to the polished substrate, significantly enhancing corrosion resistance; the antibacterial rate against Staphylococcus aureus exceeded 90 %; and after a prolonged 180-day real seawater immersion test, the surface showed excellent inhibition effects on the adhesion of various fouling organisms, such as bryozoans and nematodes. The coating-free, scalable laser surface engineering method developed in this study offers a multifunctional solution for key marine components (such as fasteners and sensor housings), combining long-term corrosion resistance with high-efficiency antifouling.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139888"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185291","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}

引用次数: 0

Enhanced photodegradation performance and mechanism of MIL-101(Fe)@AgI@TPA/TPB photocatalyst with double Z-scheme heterojunction for oxytetracycline hydrochloride 双z型异质结MIL-101(Fe)@AgI@TPA/TPB光催化剂对盐酸土霉素的光降解性能及机理研究

IF 5.4 2区化学

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-02-07 DOI: 10.1016/j.colsurfa.2026.139848

Bolong Liang , Hongbin He , Xi Zhu , Shu-Xuan Liang

{"title":"Enhanced photodegradation performance and mechanism of MIL-101(Fe)@AgI@TPA/TPB photocatalyst with double Z-scheme heterojunction for oxytetracycline hydrochloride","authors":"Bolong Liang , Hongbin He , Xi Zhu , Shu-Xuan Liang","doi":"10.1016/j.colsurfa.2026.139848","DOIUrl":"10.1016/j.colsurfa.2026.139848","url":null,"abstract":"<div><div>The residue of oxytetracycline hydrochloride (OTC) has emerged as a significant concern impacting both human health and the ecological environment. Photocatalysis has a good application prospect in the treatment of antibiotic pollution due to its advantages of lost cost, high efficiency and environmental friendliness, and the development of photocatalyst has become crucial for achieving effective photocatalytic degradation. The preparation of Z-scheme heterojunction is regarded as an effective strategy to enhance photocatalytic activity. Herein, double Z-scheme MIL-101(Fe)@AgI@TPA/TPB heterojunction materials were innovatively designed and successfully prepared. MIL-101(Fe)@AgI@TPA/TPB could achieve 95.09 % OTC removal efficiency under visible light irradiation in 70 min. The investigation of photoelectric properties and mechanisms revealed that MIL-101(Fe)@AgI@TPA/TPB had a broader range and enhanced ability for light absorption, along with a narrower band gap. It was determined that ·O<sub>2</sub><sup>-</sup> and ·OH were the primary active species involved in the photocatalysis process. The mechanism of double Z-scheme heterojunction capable of facilitating efficient photocatalytic degradation was proposed, and the intermediate products and decomposition pathways of OTC in the photocatalytic degradation process were analyzed. This study provides innovative insights into practical application through the prepared double Z-scheme heterojunction photocatalyst aimed at remediating OTC contamination in water environments.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139848"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185357","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}

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