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Lewis acid BF3 modulates inner helmholtz plane to promote Zn (002) plane adsorption and inhibit dendrites Lewis酸BF3调节内亥姆霍兹平面,促进Zn(002)平面吸附,抑制枝晶
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-10 DOI: 10.1016/j.colsurfa.2026.139545
Pan Xu, Yezhou Shen, Yurong Liu, Jingjing Yuan, Qing Wang, Guangyu He, Haiqun Chen
Zinc-ion batteries (ZIBs) exhibit great potential as energy storage devices due to their low cost and excellent safety. However, the growth of zinc dendrites and hydrogen evolution reaction on the zinc anode severely hinder their industrialization. Here, we modified polyacrylamide (PAM) gel electrolyte with a highly electronegative boron trifluoride diethyl ether complex (BFEE) containing a source of -BF3 to suppress parasitic side effects on the anode of quasi-solid-state ZIBs. As a Lewis acid, -BF3 interacts strongly with the interface between anode and electrolyte, where it effectively modulates the inner Helmholtz plane (IHP). Specifically, the electrostatic interaction between -BF3 group and Zn2+ ensures uniform Zn2+ distribution in the PAM/BFEE gel electrolyte, effectively inhibiting the concentration of local electric fields at the interface and suppressing the growth of Zn dendrite. In this work, we have explored the optimal addition amount of BFEE in PAM (2 wt%) and obtained the gel electrolyte of PAM/BFEE-2 %, which exhibits excellent mechanical properties with a fracture stress of 121 kPa and a tensile strain up to 2745 %. Moreover, the modulated IHP promoted the preferential adsorption and growth of Zn2+ on the Zn (002) crystal plane that with higher adsorption energy in the assembled Zn|PAM/BFEE-2 %|Zn battery. This full battery achieved over 1000 h of cycling stability at a current density of 1 mA cm−2, confirming that the introduction of highly electronegative BFEE into PAM can effectively suppress dendrite growth and achieve long-term stability of the zinc anode.
锌离子电池由于其低廉的成本和优异的安全性,在储能方面具有巨大的潜力。但锌枝晶的生长和锌阳极上的析氢反应严重阻碍了锌枝晶的工业化。在这里,我们用含有-BF3源的高电负性三氟化硼乙醚配合物(BFEE)修饰聚丙烯酰胺(PAM)凝胶电解质,以抑制准固态ZIBs阳极上的寄生副作用。作为路易斯酸,-BF3与阳极和电解质之间的界面强烈相互作用,有效调节内部亥姆霍兹平面(IHP)。具体来说,-BF3基团与Zn2+之间的静电相互作用保证了Zn2+在PAM/BFEE凝胶电解质中的均匀分布,有效地抑制了界面处局部电场的集中,抑制了Zn枝晶的生长。在这项工作中,我们探索了PAM中BFEE的最佳添加量(2 wt%),并获得了PAM/BFEE-2 %的凝胶电解质,该电解质具有优异的力学性能,断裂应力为121 kPa,拉伸应变高达2745 %。此外,在组装Zn|PAM/ bfe -2 %|锌电池中,调制的IHP促进了Zn2+在具有较高吸附能的Zn(002)晶面上的优先吸附和生长。该电池在电流密度为1 mA cm−2的情况下实现了超过1000 h的循环稳定性,证实了在PAM中引入高电负性BFEE可以有效抑制枝晶生长,实现锌阳极的长期稳定性。
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引用次数: 0
Efficient piezoelectric catalytic degradation of organic pollutants by BTO@PANI via ultrasonic enhancement and energy-saving aeration 超声波增强和节能曝气BTO@PANI高效压电催化降解有机污染物
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-10 DOI: 10.1016/j.colsurfa.2026.139543
Siqi Hong , Baoxi Fan , Zheng Wu , Xiaoyue Cheng , He Gao , Yanmin Jia , Cheng Liu , Luohong Zhang
Piezoelectric catalysis has emerged as a sustainable technology for pollutant degradation, with barium titanate (BTO) serving as a prominent lead-free piezoelectric material. However, its practical application remains constrained by limited degradation efficiency. To address these challenges, polyaniline-incorporated BTO nanocomposites (BTO@PANI) were synthesized via in-situ polymerization to enhance piezoelectric polarization and catalytic performance. The composites were evaluated for degrading dyes and pharmaceuticals under both ultrasonic and aeration-driven conditions, with systematic investigation of influencing factors including pH, catalyst dosage, aeration rate, and bubble size. The optimized BTO@PANI0.2 composite exhibited exceptional catalytic activity, achieving a 57 % enhancement in degradation efficiency and a reaction rate constant (k = 0.0218 min⁻¹) 15.7 times greater than pure BTO under ultrasonic excitation. The aeration-driven process used only 23.3 % of the energy that ultrasonication did, which is very impressive. The composite maintained excellent stability through four consecutive degradation cycles under both excitation modes. The catalytic mechanism was systematically investigated through radical trapping experiments, electron paramagnetic resonance (EPR) analysis, and comprehensive material characterization (XRD, SEM, FTIR, XPS, EIS). This work provides new idea for designing efficient piezoelectric catalysts and demonstrates a promising energy-saving strategy for advanced oxidation processes in water treatment.
以钛酸钡(BTO)为代表的无铅压电材料,压电催化已成为一种可持续的污染物降解技术。然而,其实际应用仍然受到降解效率有限的制约。为了解决这些问题,通过原位聚合合成了聚苯胺- BTO纳米复合材料(BTO@PANI),以增强压电极化和催化性能。考察了复合材料在超声和曝气两种驱动条件下对染料和药物的降解效果,并对pH、催化剂用量、曝气率和气泡大小等影响因素进行了系统的研究。优化后的BTO@PANI0.2复合材料表现出优异的催化活性,在超声波激发下,降解效率提高了57 %,反应速率常数(k = 0.0218 min⁻¹)是纯BTO的15.7倍。曝气驱动过程的能量消耗仅为超声波的23.3% %,这是非常令人印象深刻的。在两种激励模式下,通过连续4次降解循环,复合材料保持了优异的稳定性。通过自由基俘获实验、电子顺磁共振(EPR)分析和材料综合表征(XRD、SEM、FTIR、XPS、EIS)对催化机理进行了系统研究。该研究为设计高效压电催化剂提供了新思路,为水处理中高级氧化工艺的节能策略提供了新思路。
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引用次数: 0
Synergetic effects of textured internal morphology and low intrinsic surface energy on surface wettability and tribological behavior under oil-starved lubrication 缺油润滑条件下,织构内部形态和低本征表面能对表面润湿性和摩擦学行为的协同影响
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-10 DOI: 10.1016/j.colsurfa.2026.139547
Qianhui Cheng, Chaoqun Dang
Insufficient oil lubrication accelerates wear. Although surface texturing and low surface energy treatments improve lubrication durability, how texture internal morphology and surface energy interact under starvation remains unclear. This study investigates the combined effects of dimple internal inclination angle and low intrinsic surface energy on lubricant wettability and tribological behavior. Our results demonstrate that the internal inclination angle of the texture plays a crucial role in determining lubricant wettability, with 120° angles exhibiting reduced apparent surface energy and enhanced oleophobicity due to stronger edge effects. When combined with low intrinsic surface energy, these effects sustain lubrication throughout testing and yield a 63 % reduction in the average coefficient of friction compared with flat surfaces. These findings reveal the coupling between textured internal morphology and intrinsic surface energy in regulating lubricant-surface interactions, offering a strategy for designing textured surfaces with controlled wettability and durable anti-friction performance under oil-starved conditions.
油润滑不足加速磨损。虽然表面织构和低表面能处理提高了润滑耐久性,但织构内部形态和表面能如何在饥饿下相互作用仍不清楚。研究了凹窝内倾角和低内在表面能对润滑油润湿性和摩擦学性能的综合影响。我们的研究结果表明,织构的内部倾角在决定润滑剂润湿性方面起着至关重要的作用,当织构倾角为120°时,由于更强的边缘效应,表观表面能降低,疏油性增强。当与低内在表面能相结合时,这些效果在整个测试过程中保持润滑,与平坦表面相比,平均摩擦系数降低了63% %。这些发现揭示了织构内部形态和内在表面能之间的耦合在调节润滑油与表面的相互作用,为在缺油条件下设计具有可控润湿性和持久抗摩擦性能的织构表面提供了策略。
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引用次数: 0
Optimizing foamability and foam stability of aqueous cellulose nanofibril foams through the sequential addition of cationic and anionic surfactants 通过连续添加阳离子和阴离子表面活性剂,优化纤维素纳米纤维泡沫的起泡性和泡沫稳定性
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139536
Viraji Senevirathne , Alyson Manley , Mehdi Tajvidi , Carl P. Tripp
Cellulose nanofibrils (CNFs) have gained attention as a foam stabilizing agent in the preparation of wood fiber-based foams. In these systems, an ionic surfactant, such as sodium dodecyl sulfate (SDS), is commonly used as the foaming agent. This work shows how the sequential addition of the cationic surfactant, cetyltrimethylammonium bromide (CTAB) followed by the anionic SDS can lead to an improvement in the foamability and foam stability of the CNF-based foams. It is shown that the addition of CTAB up to the maximum adsorption amount on CNFs, imparts partial hydrophobicity to CNFs, which in turn allows the CNFs to anchor more effectively at the air-water interface during the foaming process. From zeta potential measurements, it was found that 0.154 mmol CTAB/g of CNFs was the maximum concentration of CTAB required to achieve the partial hydrophobicity of CNFs and to minimize the level of free CTAB in the solution phase that would form mixed micelles with the SDS added in the second step. It was found that the foamability and foam stability obtained with the sequential addition of CTAB then SDS passed through a maximum at a CTAB concentration of 0.154 mmol CTAB/g CNFs and foamability was 10 % higher compared to foams generated by addition of SDS alone. In contrast, a lower formability (223.6 + 10.0)% and foam stability was observed when SDS was added first, followed by 0.154 mmol CTAB/g CNFs. These findings help optimize the surfactants-assisted forming process of lignocellulosic materials.
纤维素纳米原纤维(CNFs)作为一种泡沫稳定剂在木纤维基泡沫的制备中得到了广泛的关注。在这些体系中,离子表面活性剂,如十二烷基硫酸钠(SDS),通常用作发泡剂。这项工作表明,阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)的顺序添加,然后是阴离子SDS,可以导致cnf基泡沫的起泡性和泡沫稳定性的改善。结果表明,当CTAB的加入量达到CNFs的最大吸附量时,CNFs具有部分疏水性,从而使CNFs在发泡过程中更有效地锚定在空气-水界面。zeta电位测量结果表明,达到CNFs部分疏水性所需的最大CTAB浓度为0.154 mmol CTAB/g,并使与第二步添加的SDS形成混合胶束的溶液中游离CTAB水平降至最低。结果表明,在CTAB浓度为0.154 mmol CTAB/g CNFs时,连续添加CTAB后SDS的泡沫性能和泡沫稳定性达到最大值,比单独添加SDS的泡沫性能提高10 %。先加入SDS,再加入0.154 mmol CTAB/g CNFs,可获得较低的成型性(223.6 + 10.0)%和泡沫稳定性。这些发现有助于优化表面活性剂辅助形成木质纤维素材料的过程。
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引用次数: 0
Biogenic ultrasmall Re–Ag nanocatalysts for concurrent wastewater detoxification and hydrogen evolution 生物源超小Re-Ag纳米催化剂用于废水脱毒和析氢
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139535
Mujahid Ameen Khan , Aarsi Gupta , Ekta Rani , Marko Huttula , Harishchandra Singh
The increasing presence of dyes, pesticides, and pharmaceutical residues in wastewater underscores the urgent need for multifunctional and sustainable catalysts. Here, we report the biogenic synthesis of ultrasmall rhenium–silver (Re@Ag) nanocatalysts using potato starch and citric acid as green reductant and stabilizer, respectively. The Re@Ag nanocomposites comprise Ag nanoparticles (5–20 nm) uniformly embedded in a rhenium nanomatrix (<2 nm), forming a stable hybrid with exceptional redox behavior. XPS analysis reveals the presence of catalytically active Re⁴⁺ and Re⁶⁺ states, stabilized via electronic interactions with Ag, which promote efficient interfacial electron transfer. The optimized Re:Ag (2:1) nanocatalyst exhibits superior pseudo-first-order kinetics in reducing a broad range of contaminants, including azo dyes, nitroaromatic compounds, nitro-antimicrobials, and imino-pesticides, with rate constants as high as 1.10 min⁻¹ (methylene blue), 0.94 min⁻¹ (rhodamine B), and 0.79 min⁻¹ (4-nitrophenol). The mechanistic insights from LC–MS confirm complete conversion of –N = N– and –NO₂ groups to their leuco and amine derivatives, respectively. Importantly, the Re@Ag catalysts retained activity across multipollutant mixtures and enabled hydrogen evolution from NaBH₄ during the degradation process. Their performance over eight reuse cycles further underscore their practical potential. Unlike conventional single-function catalysts, the Re@Ag catalysts developed here uniquely enable pollutant degradation and hydrogen evolution in a single reaction system, demonstrating both detoxification and energy generation, an approach not reported previously. This dual functionality, achieved through a simple biogenic synthesis route, offers practical advantages for real-world wastewater remediation with renewable energy production in one unified catalytic strategy. Overall, this study introduces a scalable, biogenic nanocatalyst platform that directly addresses pressing challenges in water pollution control while offering added benefits for green energy applications.
随着废水中染料、农药和药物残留的不断增加,迫切需要多功能和可持续的催化剂。本文报道了用马铃薯淀粉和柠檬酸分别作为绿色还原剂和稳定剂,生物合成超小铼银纳米催化剂(Re@Ag)。Re@Ag纳米复合材料由银纳米颗粒(5-20 nm)均匀嵌入铼纳米基质(<2 nm)中,形成具有优异氧化还原行为的稳定杂化物。XPS分析揭示了具有催化活性的Re⁴+和Re 26 +状态的存在,这些状态通过与Ag的电子相互作用稳定,从而促进了高效的界面电子转移。优化后的Re:Ag(2:1)纳米催化剂在还原多种污染物方面表现出优异的准一级动力学,包括偶氮染料、硝基芳香化合物、硝基抗菌剂和亚胺农药,其速率常数高达1.10 min⁻¹ (亚甲基蓝)、0.94 min⁻¹ (罗丹明B)和0.79 min⁻¹ (4-硝基苯酚)。LC-MS的机制见解证实- N = N -和- no 2基团分别完全转化为它们的白细胞和胺衍生物。重要的是,Re@Ag催化剂在多种污染物混合物中保持活性,并在降解过程中使NaBH₄析出氢。它们在8个重复使用周期中的表现进一步强调了它们的实际潜力。与传统的单一功能催化剂不同,Re@Ag催化剂在单一反应系统中独特地实现了污染物降解和氢的演化,同时展示了解毒和能量生成,这是以前未报道的方法。这种双重功能,通过一个简单的生物合成路线实现,在一个统一的催化策略下,可再生能源生产为现实世界的废水修复提供了实际优势。总的来说,这项研究引入了一个可扩展的生物纳米催化剂平台,直接解决了水污染控制中的紧迫挑战,同时为绿色能源应用提供了额外的好处。
{"title":"Biogenic ultrasmall Re–Ag nanocatalysts for concurrent wastewater detoxification and hydrogen evolution","authors":"Mujahid Ameen Khan ,&nbsp;Aarsi Gupta ,&nbsp;Ekta Rani ,&nbsp;Marko Huttula ,&nbsp;Harishchandra Singh","doi":"10.1016/j.colsurfa.2026.139535","DOIUrl":"10.1016/j.colsurfa.2026.139535","url":null,"abstract":"<div><div>The increasing presence of dyes, pesticides, and pharmaceutical residues in wastewater underscores the urgent need for multifunctional and sustainable catalysts. Here, we report the biogenic synthesis of ultrasmall rhenium–silver (Re@Ag) nanocatalysts using potato starch and citric acid as green reductant and stabilizer, respectively. The Re@Ag nanocomposites comprise Ag nanoparticles (5–20 nm) uniformly embedded in a rhenium nanomatrix (&lt;2 nm), forming a stable hybrid with exceptional redox behavior. XPS analysis reveals the presence of catalytically active Re⁴⁺ and Re⁶⁺ states, stabilized via electronic interactions with Ag, which promote efficient interfacial electron transfer. The optimized Re:Ag (2:1) nanocatalyst exhibits superior pseudo-first-order kinetics in reducing a broad range of contaminants, including azo dyes, nitroaromatic compounds, nitro-antimicrobials, and imino-pesticides, with rate constants as high as 1.10 min⁻¹ (methylene blue), 0.94 min⁻¹ (rhodamine B), and 0.79 min⁻¹ (4-nitrophenol). The mechanistic insights from LC–MS confirm complete conversion of –N = N– and –NO₂ groups to their leuco and amine derivatives, respectively. Importantly, the Re@Ag catalysts retained activity across multipollutant mixtures and enabled hydrogen evolution from NaBH₄ during the degradation process. Their performance over eight reuse cycles further underscore their practical potential. Unlike conventional single-function catalysts, the Re@Ag catalysts developed here uniquely enable pollutant degradation and hydrogen evolution in a single reaction system, demonstrating both detoxification and energy generation, an approach not reported previously. This dual functionality, achieved through a simple biogenic synthesis route, offers practical advantages for real-world wastewater remediation with renewable energy production in one unified catalytic strategy. Overall, this study introduces a scalable, biogenic nanocatalyst platform that directly addresses pressing challenges in water pollution control while offering added benefits for green energy applications.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139535"},"PeriodicalIF":5.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975852","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
NH2-MIL-125 (Ti)-derived TiO2/NC anchored on GO layers for electrochemical detection of carcinogenic antioxidant NH2-MIL-125 (Ti)衍生TiO2/NC锚定在氧化石墨烯层上用于致癌抗氧化剂的电化学检测
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139522
Shengbiao Zheng , Shiyu Cui , Lingxiu Shu , Boxuan Wu , Zirui Zhang , Errui Wang , Xiangju Ye , Jing Tang , Xuchun Wang , Jiahao Guo
For the rapid detection of food antioxidants tert-butylhydroquinone (TBHQ) in foods, the main challenge is finding suitable nanomaterials to solve the conventional single-signal detection strategy results in limited accuracy. Here, a novel porous nitrogen-doped carbon with TiO2 nanocomposite dispersed on the surface of graphene oxide (defined as GO@TiO2/NC) was synthesized using calcination of Ti-based metal organic frameworks (NH2-MIL-125 (Ti)), then hydrothermal synthesis of graphene oxide (GO) and TiO2/NC. Analysis confirmed the successful fabrication of GO@TiO2/NC material through various methods such as transmission electron microscopy, X-ray diffraction, nitrogen adsorption-desorption isotherms, X-ray photoelectron spectrometry. The distinctive structure of GO@TiO2/NC can effectively improve the catalytic performance during detection process of TBHQ, increase electrochemical active area, provide abundant active sites, and boost the conductivity. Under optimal conditions, the GO@TiO2/NC sensor showed a wide dynamic detection range (0.06–10.0, 10.0–100 μM) and a limit of detection (LOD) of 13 nM (S/N = 3). Meanwhile, the as-designed GO@TiO2/NC sensor also showcased superior selectivity, repeatability, reproducibility and stability, as well as the rapid electron transfer and minimal interference with other common antioxidants. TBHQ recovery experiments were applied in "Weilong Spicy Strips" and "cake", achieving satisfactory recoveries.
食品中抗氧化剂叔丁基对苯二酚(TBHQ)的快速检测面临的主要挑战是寻找合适的纳米材料来解决传统的单信号检测策略导致的准确性有限的问题。本文采用钛基金属有机骨架(NH2-MIL-125 (Ti))煅烧,然后水热合成氧化石墨烯(GO)和TiO2/NC,制备了一种新型多孔氮掺杂碳纳米复合材料,并将其分散在氧化石墨烯(定义为GO@TiO2/NC)表面。通过透射电镜、x射线衍射、氮吸附-解吸等温线、x射线光电子能谱等多种方法分析证实了GO@TiO2/NC材料的成功制备。GO@TiO2/NC独特的结构可以有效提高TBHQ检测过程中的催化性能,增加电化学活性面积,提供丰富的活性位点,提高电导率。在最优条件下,GO@TiO2/NC传感器动态检测范围宽(0.06 ~ 10.0,10.0 ~ 100 μM),检出限(LOD)为13 nM (S/N = 3)。同时,设计的GO@TiO2/NC传感器还显示出优越的选择性、可重复性、再现性和稳定性,以及快速的电子转移和对其他常见抗氧化剂的最小干扰。对“味龙麻辣条”和“饼”进行了thbhq回收实验,获得了满意的回收率。
{"title":"NH2-MIL-125 (Ti)-derived TiO2/NC anchored on GO layers for electrochemical detection of carcinogenic antioxidant","authors":"Shengbiao Zheng ,&nbsp;Shiyu Cui ,&nbsp;Lingxiu Shu ,&nbsp;Boxuan Wu ,&nbsp;Zirui Zhang ,&nbsp;Errui Wang ,&nbsp;Xiangju Ye ,&nbsp;Jing Tang ,&nbsp;Xuchun Wang ,&nbsp;Jiahao Guo","doi":"10.1016/j.colsurfa.2026.139522","DOIUrl":"10.1016/j.colsurfa.2026.139522","url":null,"abstract":"<div><div>For the rapid detection of food antioxidants tert-butylhydroquinone (TBHQ) in foods, the main challenge is finding suitable nanomaterials to solve the conventional single-signal detection strategy results in limited accuracy. Here, a novel porous nitrogen-doped carbon with TiO<sub>2</sub> nanocomposite dispersed on the surface of graphene oxide (defined as GO@TiO<sub>2</sub>/NC) was synthesized using calcination of Ti-based metal organic frameworks (NH<sub>2</sub>-MIL-125 (Ti)), then hydrothermal synthesis of graphene oxide (GO) and TiO<sub>2</sub>/NC. Analysis confirmed the successful fabrication of GO@TiO<sub>2</sub>/NC material through various methods such as transmission electron microscopy, X-ray diffraction, nitrogen adsorption-desorption isotherms, X-ray photoelectron spectrometry. The distinctive structure of GO@TiO<sub>2</sub>/NC can effectively improve the catalytic performance during detection process of TBHQ, increase electrochemical active area, provide abundant active sites, and boost the conductivity. Under optimal conditions, the GO@TiO<sub>2</sub>/NC sensor showed a wide dynamic detection range (0.06–10.0, 10.0–100 μM) and a limit of detection (LOD) of 13 nM (S/N = 3). Meanwhile, the as-designed GO@TiO<sub>2</sub>/NC sensor also showcased superior selectivity, repeatability, reproducibility and stability, as well as the rapid electron transfer and minimal interference with other common antioxidants. TBHQ recovery experiments were applied in \"Weilong Spicy Strips\" and \"cake\", achieving satisfactory recoveries.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"735 ","pages":"Article 139522"},"PeriodicalIF":5.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923692","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
Facile construction of sustainable anisotropic porous polylactic acid coating for high-performance passive radiative cooling 高性能被动辐射冷却用可持续各向异性多孔聚乳酸涂层的简易构建
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139532
Li-Xiang Gao , Zhi-Li Zheng , Wen-Liang Yu , Fang-Ming Tang , Li-Li Wang , Xian-Wei Cheng , Jin-Ping Guan
Passive daytime radiative cooling (PDRC) textiles provide an energy-free approach to thermal management but are often limited by complex fabrication methods and reliance on nanoparticle-based components. Here, this study reported a bio-based, environmentally benign PDRC coating composed of polylactic acid (PLA) applied to polyester fabric via a simple, scalable coating process. Polyethylene glycol served as the pore-forming agent to induce a porous microstructure through non-solvent-induced phase separation. This process yielded an anisotropic, self-adherent porous PLA coating directly on the textile surface. Without incorporating nanoparticles, the 120 μm-thick coating achieved an average solar reflectance of 94.9 %, driven primarily by Mie scattering from nanoscale pores, and an average mid-infrared emissivity of 95.8 % within the atmospheric window, arising from vibrational absorption of C-O-C and CO bonds and a flower-like surface morphology. Under direct sunlight, the coated fabric exhibited average and peak temperature reductions of 10.2 °C and 14.0 °C, respectively, relative to uncoated fabric. Effective cooling performance was also demonstrated when applied to car windows and human skin. This work establishes a sustainable, high-performance, and scalable strategy for PDRC textiles with strong environmental compatibility.
被动式日间辐射冷却(PDRC)纺织品提供了一种无能量的热管理方法,但通常受到复杂的制造方法和对纳米颗粒成分的依赖的限制。在这里,本研究报告了一种由聚乳酸(PLA)组成的生物基环保PDRC涂层,通过一种简单、可扩展的涂层工艺应用于聚酯织物。聚乙二醇作为成孔剂,通过非溶剂诱导相分离形成多孔结构。该工艺直接在纺织品表面制备了一种各向异性、自粘附的多孔聚乳酸涂层。在不加入纳米颗粒的情况下,120 μm厚的涂层在大气窗口内的平均中红外发射率为95.8% %,这主要是由纳米级孔的Mie散射驱动的,这是由于C-O-C和CO键的振动吸收和表面形态呈花状。在阳光直射下,涂层织物的平均温度和峰值温度分别比未涂层织物降低10.2°C和14.0°C。当应用于车窗和人体皮肤时,也证明了有效的冷却性能。这项工作为具有强环境兼容性的PDRC纺织品建立了可持续、高性能和可扩展的战略。
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引用次数: 0
Effects of different aging processes on the surface properties of tire wear particles and the molecular characteristics of dissolved organic matter leaching 不同老化过程对轮胎磨损颗粒表面性能及溶解有机物浸出分子特性的影响
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139519
Zhiwei Chen , Bin Wang , Kunyu Wen , Qiang Zhang , Usman Farooq , Taotao Lu , Jiang Gu , Zhichong Qi , Weifeng Chen
Tire wear particles (TWPs), a ubiquitous class of microplastics, have recently been recognized as a contaminant of emerging concern. Aging profoundly alters the physicochemical characteristics of TWPs; consequently, may impact the molecular properties of dissolved organic matter leached from these particles (TWP-DOMs). In this study, TWPs were aged using different approaches (photo-oxidation (UV radiation), chemical-oxidation (Fenton and H2O2), acidic or basic treatment (HCl or NaOH), and photo-chemical oxidation (UV combined with H2O2 (UV/H2O2)). A multi-analytical approach integrating FTIR, TEM, Fluorescence spectrum, Raman, and two-dimensional correlation spectroscopy (2D-COS) was employed to elucidate aging-induced alterations in the properties of TWPs and/or TWP-DOMs. The results demonstrated that HCl- or NaOH-treated TWPs exhibited more pronounced surface cracking and/or structural defects than photo-oxidation and chemical oxidation. Meanwhile, the oxidation treatments (Fenton, H2O2, UV, and UV/H2O2) promoted the formation of more oxygen-containing groups on TWP surfaces than HCl- or NaOH-treatment, with the sequential group change of -OH→C-O→C-OH during the aging process. Herein, the UV-oxidation introduced more than 2 times the O content into TWP surfaces in comparison with other oxidation processes. Spectral characteristics of TWP-DOMs obtained from FTIR and Fluorescence spectrum analysis showed that the aging enhanced the aromaticity and humification of TWP-DOMs. Generally, the photo-aging appeared to decrease the molecular size of DOMs released from TWPs, while the acidic or basic treatment resulted in the contrary tendency. Furthermore, although the release sequence and abundances of organic components from TWPs varied with the aging approaches, the aging treatment transformed tryptophan-like protein components (the predominant component in the untreated TWP-DOM) into humic-like substances (the main components in the aged TWP-DOMs). Our findings expand the understanding of the critical role of aging in evaluating the environmental fate of TWPs and TWP-derived DOMs.
轮胎磨损颗粒(TWPs)是一种普遍存在的微塑料,最近被认为是一种新兴的污染物。老化深刻地改变了twp的理化特性;因此,可能会影响从这些颗粒中浸出的溶解有机物(twp - dom)的分子特性。在本研究中,采用不同的方法(光氧化(UV辐射)、化学氧化(Fenton和H2O2)、酸性或碱性处理(HCl或NaOH)、光化学氧化(UV与H2O2结合(UV/H2O2))对TWPs进行老化。采用FTIR, TEM,荧光光谱,拉曼光谱和二维相关光谱(2D-COS)的多分析方法来阐明衰老诱导的twp和/或twp - dom性质的变化。结果表明,与光氧化和化学氧化相比,HCl或naoh处理的twp具有更明显的表面开裂和/或结构缺陷。同时,氧化处理(Fenton、H2O2、UV和UV/H2O2)比HCl-或naoh处理促进TWP表面形成更多的含氧基团,在老化过程中基团顺序为- oh→C-O→C-OH。在此,与其他氧化工艺相比,紫外线氧化将O含量引入TWP表面的2倍以上。FTIR和荧光光谱分析表明,老化增强了twp - dom的芳香性和腐殖化。一般情况下,光老化处理会减小TWPs释放的DOMs的分子大小,而酸性或碱性处理则相反。此外,尽管twp中有机成分的释放顺序和丰度随衰老方式而变化,但衰老处理将色氨酸样蛋白质成分(未处理TWP-DOM中的主要成分)转化为腐殖质样物质(老化TWP-DOM中的主要成分)。我们的研究结果扩大了对衰老在评估twp和twp衍生的DOMs的环境命运中的关键作用的理解。
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引用次数: 0
Construct a phosphonate-amidoxime bifunctional modified phenolic resin for uranium adsorption in seawater 构建一种磷酸盐-偕胺肟双官能团改性酚醛树脂,用于海水中铀的吸附
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139529
Cuicui Shao , Lin Lin , Yuxin Sun , Shuyang Cao , Zhijian Li , Shouzhi Pu , Chunhui Deng
As an efficient renewable resource, the extraction of uranium can alleviate global energy and environmental problems. Here, a new type of phosphoric acid and oxime dual-functional resin has been developed for efficient adsorption of uranium. The resin (3-CN-PF) was synthesized using 3-Cyanophenol (3-CP) and formaldehyde, and the phosphorus group and oxime group were grafted onto 3-CN-PF through post-synthesis modification to prepare the bifunctional resin (PF-PA-AO). This resin has abundant phosphorus groups and oxime groups, making it have good affinity for uranium, showing excellent uranium removal performance (Qm = 386.1 mg g−1) and high selectivity (removal rate = 97.53 %). The oxime group and phosphorus group have relatively high specificity and affinity with uranium, enabling the adsorbent to reach adsorption kinetic equilibrium within 30 min. Moreover, the thermosetting chemically cross-linked resin generated under the condition of ammonia water as a catalyst has high stability and can still achieve a removal rate of 85.9 % after 5 sorption-desorption cycles. Moreover, the adsorption performance of the dual-functionalized material (PF-PA-AO) for uranium was 22 % higher than that of the traditional material (PA-PF) which only contains phosphate groups. In conclusion, this work opens up new possibilities for the construction of bifunctionalized resin adsorbents.
铀作为一种高效的可再生资源,其开采可以缓解全球能源和环境问题。本文研制了一种新型的磷酸肟双功能树脂,用于铀的高效吸附。以3-氰酚(3-CP)和甲醛为原料合成树脂(3-CN-PF),并通过合成后改性将磷基和肟基接枝到3-CN-PF上,制备双功能树脂(PF-PA-AO)。该树脂具有丰富的磷基和肟基,对铀具有良好的亲和性,具有优良的除铀性能(Qm = 386.1 mg g−1)和高选择性(去除率= 97.53 %)。肟基和磷基对铀具有较高的特异性和亲和力,使吸附剂在30 min内达到吸附动力学平衡。此外,在氨水为催化剂条件下生成的热固性化学交联树脂具有较高的稳定性,经过5次吸附-解吸循环后,其去除率仍可达到85.9 %。双功能化材料(PF-PA-AO)对铀的吸附性能比仅含磷酸基团的传统材料(PA-PF)提高了22 %。总之,这项工作为双官能化树脂吸附剂的构建开辟了新的可能性。
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引用次数: 0
Mechanistic insights into microbial modification of acidic aggregates for improved asphalt-aggregate adhesion 微生物对酸性骨料进行改性以改善沥青-骨料附着力的机理研究
IF 5.4 2区 化学 Q2 CHEMISTRY, PHYSICAL Pub Date : 2026-01-09 DOI: 10.1016/j.colsurfa.2026.139515
Jiawen Gu, Yaming Fu, Xiaolu Lin, Wen Li, Lei Fang, Huaqiang Sun, Liqin Cai, Yangjian Cheng
Poor adhesion between acidic granite aggregates and asphalt causes moisture-induced pavement damage, while conventional chemical modifiers suffer performance degradation and pollution. This study innovates a bio-mineralization approach to facilitate in situ formation of an organic-inorganic composite CaCO₃ layer on granite via Bacillus pasteurii. Experimental results show that calcium carbonate formed through biomineralization (Bio-CaCO3) can form new chemical bonds (-OH) with granite, while the rate of asphalt stripping from granite aggregates can be reduced by up to 60.9 %. In contrast, chemical calcium carbonate (Chem-CaCO3) actually promotes asphalt detachment. During the biomineralization process, the presence of organic polysaccharides and proteins significantly enhances the oleophilicity of the aggregate surface. The contact angle of Bio-CaCO3 increased to 59.6°, while that of Chem-CaCO3 increased by only 4.5°. Moreover, the water stability index improved by 104 %. Frequency scanning analysis reveals that the Ca element in Bio-CaCO3 transfers to some active groups in asphalt, forming bond energies similar to covalent bonds (the binding energy of calcium decreases by 0.5 eV), thereby significantly enhancing adhesion to asphalt and improving high-temperature stability. Using biomineralized inorganic-organic composite calcium carbonate to treat granite can not only effectively reduce energy consumption during road construction but also decrease environmental pollution. Therefore, it holds great promise as a green, environmentally friendly, and sustainable solution to address the issue of insufficient asphalt adhesion in road pavements.
酸性花岗岩骨料与沥青之间的粘结性差会导致潮湿引起的路面损坏,而传统的化学改性剂会导致性能下降和污染。这项研究创新了一种生物矿化方法,以促进通过巴氏杆菌在花岗岩上原位形成有机-无机复合CaCO₃层。实验结果表明,生物矿化形成的碳酸钙(Bio-CaCO3)可与花岗岩形成新的化学键(-OH),可使花岗岩骨料沥青剥落率降低60.9 %。相反,化学碳酸钙(Chem-CaCO3)实际上促进了沥青的分离。在生物矿化过程中,有机多糖和蛋白质的存在显著增强了聚集体表面的亲油性。Bio-CaCO3的接触角增加到59.6°,而Chem-CaCO3的接触角仅增加4.5°。水稳定性指数提高了104 %。频率扫描分析表明,Bio-CaCO3中的Ca元素转移到沥青中的一些活性基团上,形成类似共价键的键能(钙的结合能降低0.5 eV),从而显著增强了与沥青的附着力,提高了高温稳定性。采用生物矿化无机-有机复合碳酸钙处理花岗岩,既能有效降低道路施工能耗,又能减少环境污染。因此,作为一种绿色、环保和可持续的解决方案,它有望解决道路路面沥青附着不足的问题。
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引用次数: 0
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Colloids and Surfaces A: Physicochemical and Engineering Aspects
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