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

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2D/3D g-C₃N₄ Nanosheet/CeO₂ Shuttle Heterostructure with Type-II Band Alignment for Visible-Light-Driven Pollutant Degradation 2D/3D g-C₃N₄纳米片/CeO₂穿梭异质结构ⅱ型波段对准可见光驱动污染物降解
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-10-15 DOI: 10.1016/j.colsurfa.2026.142096
Shabana Shaheen, Wenjing An, Lan-Lan Lou, Shijia Jiang, Farzana Sadaf, Iqra Afzal, Jun Xu
{"title":"2D/3D g-C₃N₄ Nanosheet/CeO₂ Shuttle Heterostructure with Type-II Band Alignment for Visible-Light-Driven Pollutant Degradation","authors":"Shabana Shaheen,&nbsp;Wenjing An,&nbsp;Lan-Lan Lou,&nbsp;Shijia Jiang,&nbsp;Farzana Sadaf,&nbsp;Iqra Afzal,&nbsp;Jun Xu","doi":"10.1016/j.colsurfa.2026.142096","DOIUrl":"10.1016/j.colsurfa.2026.142096","url":null,"abstract":"<div><div>Persistent chlorophenolic pollutants require efficient and reusable photocatalysts for sustainable wastewater remediation. We hypothesized that coupling two-dimensional graphitic carbon nitride (g-C₃N₄) nanosheets with three-dimensional shuttle-like cerium dioxide (CeO₂) would create an extended heterointerface that promotes photogenerated charge separation and enhances visible-light photocatalytic activity. To test this hypothesis, morphology-engineered g-C₃N₄/CeO₂ heterojunctions were constructed through hydrothermal and wet-chemical methods. Microscopic observations and elemental mapping confirmed intimate interfacial contact and homogeneous dispersion of g-C₃N₄ nanosheets over the CeO₂ shuttles. X-ray photoelectron spectra revealed a shift of the O 1<!--> <!-->s signal toward lower binding energy, indicating interfacial electron transfer and increased electron density around the oxygen atoms of CeO₂. Photoluminescence, photocurrent, and electrochemical impedance measurements further demonstrated suppressed electron–hole recombination, accelerated interfacial charge transport, and reduced charge-transfer resistance. Consequently, the optimized composite, prepared with 15% g-C₃N₄ relative to CeO₂ by mass, achieved 96.6% degradation of 2,4-dichlorophenol within 3<!--> <!-->h under visible-light irradiation, compared with only 30% degradation using pristine CeO₂. The combined surface, optical, photoelectrochemical, and radical-trapping results supported a proposed Type-II charge-transfer pathway, in which CeO₂ acts as an electron acceptor and superoxide radicals (•O₂⁻) serve as the predominant reactive species. The optimized photocatalyst maintained nearly unchanged activity over four consecutive cycles. The novelty of this work lies in constructing a morphology-controlled two-dimensional/three-dimensional nanosheet–shuttle interface that provides extensive interfacial contact, efficient charge migration, high photocatalytic performance and reproducible cycling behaviour under constant catalyst-loading conditions.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"753 ","pages":"Article 142096"},"PeriodicalIF":5.4,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149212920","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
Fabrication of Thin-coated PDMS/PP Composite Membranes and Investigation of the Coating Formation Mechanism and the Removal Performance towards Dissolved Oxygen 薄包覆PDMS/PP复合膜的制备、包覆机理及对溶解氧去除性能的研究
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-10-15 DOI: 10.1016/j.colsurfa.2026.142107
Xiaonan Fu, Zhihao Gao, Zhiyou Pu, Jingyu Chu, Biao Wu, Xiao Wu, Zhenyu Cui
{"title":"Fabrication of Thin-coated PDMS/PP Composite Membranes and Investigation of the Coating Formation Mechanism and the Removal Performance towards Dissolved Oxygen","authors":"Xiaonan Fu,&nbsp;Zhihao Gao,&nbsp;Zhiyou Pu,&nbsp;Jingyu Chu,&nbsp;Biao Wu,&nbsp;Xiao Wu,&nbsp;Zhenyu Cui","doi":"10.1016/j.colsurfa.2026.142107","DOIUrl":"10.1016/j.colsurfa.2026.142107","url":null,"abstract":"<div><div>Polypropylene (PP) hollow fiber degassing membrane is easy to be wetted by water during long-term operation due to its poor intrinsic hydrophobicity. In this study, PDMS/PP hydrophobic composite membrane was prepared via dip-coating polydimethylsiloxane (PDMS). In this process, the pre-crosslinking time was controlled to adjust the coating solution to the minimum viscosity capable of forming a continuous coating layer. Meanwhile, the spreading of PDMS on the membrane surface was promoted by regulating the PDMS concentration, coating time and drying temperature, ultimately producing a thin and uniform PDMS coating layer. This study elucidated the formation process and anti-wetting mechanism of the PDMS coating layer. The effects of PDMS concentration, coating time and drying temperature on the morphology of coating layer, hydrophobicity and degassing performance were systematically investigated. The results showed that the water contact angle of the prepared composite membrane increased to 107.5 °. The DO removal rate was 74% and retained approximately 90% of the degassing performance of the pristine PP membrane. However, after 2160<!--> <!-->min of continuous operation, the DO removal rate can still remain stable at 70%, which suggested that both the anti-wetting performance and long-term operational stability were significantly superior to those of the PP substrate membrane. The fluorine-free, environmentally friendly and simple modification method used in this study achieves a synergistic enhancement in both degassing efficiency and operational stability, which provides technical support for the industrial application of high-performance hydrophobic degassing membranes.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"753 ","pages":"Article 142107"},"PeriodicalIF":5.4,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149212858","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
Efficient and selective flotation recovery of chrysocolla via EDA/2-MP synergistic activation: Performance and adsorption mechanism EDA/2-MP协同活化浮选回收黄铜矿:性能及吸附机理
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-08-20 DOI: 10.1016/j.colsurfa.2026.141616
Haoxiang Wang, Peilun Shen, Dianwen Liu, Rong Peng, Hang Zhu, Xianren Dai, Jinpeng Cai
{"title":"Efficient and selective flotation recovery of chrysocolla via EDA/2-MP synergistic activation: Performance and adsorption mechanism","authors":"Haoxiang Wang,&nbsp;Peilun Shen,&nbsp;Dianwen Liu,&nbsp;Rong Peng,&nbsp;Hang Zhu,&nbsp;Xianren Dai,&nbsp;Jinpeng Cai","doi":"10.1016/j.colsurfa.2026.141616","DOIUrl":"10.1016/j.colsurfa.2026.141616","url":null,"abstract":"<div><div>Chrysocolla is one of the most difficult oxide copper minerals to recover by flotation because of its strong hydrophilicity, low reactivity, and poor adaptability to conventional activation methods. In this study, an EDA/2-MP synergistic activation system was developed using KBX as the collector. At pH 10, single-mineral flotation tests were conducted with 38–74 μm chrysocolla at a pulp solid concentration of 10<!--> <!-->g/L and a flotation time of 8<!--> <!-->min, with three independent tests performed for each condition; an artificial chrysocolla–dolomite mixture at a mass ratio of 1:1 was also used to evaluate separation performance. At EDA, 2-MP, and KBX concentrations of 40, 280, and 60<!--> <!-->mg/L, respectively, chrysocolla recovery reached 95.34%. In the mixed-mineral system, concentrate Cu recovery remained above 95%, with a Cu grade of approximately 34%. FIB-TEM revealed a continuous low-crystallinity film approximately 31.2–33.9<!--> <!-->nm thick after EDA/2-MP treatment. Raman, XPS, and ToF-SIMS showed that EDA/2-MP altered the chemical environments of surface Cu, N, and S species and promoted the enrichment of KBX-related components at the activated interface. Accordingly, EDA/2-MP pretreatment followed by KBX addition increased the chrysocolla contact angle from 24.52° to 82.65°, confirming surface hydrophobization. This study provides a new selective interfacial activation strategy for efficient flotation recovery of refractory silicate-type oxide copper minerals.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"750 ","pages":"Article 141616"},"PeriodicalIF":5.4,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148772257","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
PDMAEMA as a pH/temperature- responsive switch enhanced corrosion resistance of self-healing epoxy coatings PDMAEMA作为pH/温度响应开关,增强了自愈环氧涂料的耐腐蚀性
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-08-19 DOI: 10.1016/j.colsurfa.2026.141584
Jiaqi Huang, Jianyu Wang, Wei Xiang, Meiping Wu, Xiaojin Miao
{"title":"PDMAEMA as a pH/temperature- responsive switch enhanced corrosion resistance of self-healing epoxy coatings","authors":"Jiaqi Huang,&nbsp;Jianyu Wang,&nbsp;Wei Xiang,&nbsp;Meiping Wu,&nbsp;Xiaojin Miao","doi":"10.1016/j.colsurfa.2026.141584","DOIUrl":"10.1016/j.colsurfa.2026.141584","url":null,"abstract":"<div><div>A dual-responsive self-healing epoxy coating was developed by incorporating a smart microcapsule (rGO@SiO₂-95S-P). PDMAEMA acted as a responsive gatekeeper, enabling faster 95S release under acidic conditions and at temperatures below its LCST range. Meanwhile, the photothermal conversion of rGO increased the coating temperature under 808<!--> <!-->nm NIR irradiation, enhancing epoxy-chain mobility and promoting partial scratch closure. UV-Vis spectroscopy, infrared thermography, optical microscopy, electrochemical measurements, and SEM/EDS were employed to evaluate the responsive release, scratch-recovery behavior, and corrosion protection of the coating. Under NIR irradiation for 600<!--> <!-->s, the composite coating reached 48.6 °C and exhibited an average scratch-width reduction of 0.5321<!--> <!-->mm. After scratching and NIR treatment, the coating maintains a relatively high |Z|<sub>f=0.01Hz</sub> of 5.08×10<sup>5</sup> Ω·cm<sup>2</sup> and an R<sub>ct</sub> of 8.922×10<sup>5</sup> Ω·cm<sup>2</sup>. At pH=3, the composite coating exhibited an I<sub>corr</sub> of 1.286×10<sup>-8<!--> </sup>A·cm<sup>-2</sup> and an R<sub>ct</sub> of 2.053×10<sup>7</sup> Ω·cm². SEM/EDS observations further revealed a comparatively uniform Q235 steel surface with fewer coarse corrosion products under acidic conditions. These results demonstrate that the combination of responsive inhibitor release, NIR-induced partial scratch closure, and physical barrier protection provides the composite coating with effective corrosion protection, particularly under acidic conditions.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"750 ","pages":"Article 141584"},"PeriodicalIF":5.4,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148772331","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
Structural response and competitive pore filling of phenol and caffeine in hydrophobic microporous carbons 疏水微孔碳中苯酚和咖啡因的结构响应和竞争性孔隙填充
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-08-19 DOI: 10.1016/j.colsurfa.2026.141479
Zineb El Oufir, Nathalie Mathieu, Sandrine Delpeux-Ouldriane, Hamidréza Ramézani
{"title":"Structural response and competitive pore filling of phenol and caffeine in hydrophobic microporous carbons","authors":"Zineb El Oufir,&nbsp;Nathalie Mathieu,&nbsp;Sandrine Delpeux-Ouldriane,&nbsp;Hamidréza Ramézani","doi":"10.1016/j.colsurfa.2026.141479","DOIUrl":"10.1016/j.colsurfa.2026.141479","url":null,"abstract":"<div><div>Understanding what governs molecular selectivity in confined hydrophobic nanopores remains a central challenge in interfacial science. The adsorption behavior of phenol and caffeine on hydrophobic, disordered microporous carbon cloth was investigated to clarify how molecular-water affinity, rather than molecular size or molecular-carbon affinity, governs competitive adsorption mechanisms in confined carbon porosity. A combination of adsorption isotherms (UV spectroscopy), thermodesorption, X-ray diffraction, N<sub>2</sub>/CO<sub>2</sub> physisorption, and SAXS-WAXS was employed. Both molecules enter the micropores, but caffeine shows restricted entry into ultramicropores. Phenol exhibits a higher adsorption capacity, attributable to additional favorable carbon-phenol interactions, and adsorbs in both solvated and unsolvated forms, revealing heterogeneous surface interaction pathways; caffeine, by contrast, shows evidence of self-association via <span><math><mrow><mi>π</mi><mo>−</mo><mi>π</mi></mrow></math></span> stacking within less confined supermicropores. Despite its faster adsorption kinetics, phenol uptake is strongly suppressed by caffeine under competitive conditions. Thermodynamic analysis confirms spontaneous physisorption for both species, with a more favorable Gibbs free energy of adsorption for caffeine, consistent with its weaker affinity for water relative to the carbon surface; conversely, phenol’s stronger water affinity facilitates its displacement from the pore network in favor of caffeine. Structural characterization shows that adsorption does not involve penetration into the interlayer spacing (<span><math><mrow><mo>≈</mo><mn>0.41</mn></mrow></math></span> nm), confirming confinement to micro- and supermicroporosity, while a loading-dependent reduction in apparent interlayer distance is observed after adsorption for both adsorbates. SAXS-WAXS results are consistent with a possible adsorption-induced contraction of the pore walls.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"750 ","pages":"Article 141479"},"PeriodicalIF":5.4,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148772110","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
A horseradish peroxidase-mediated electrochemical biosensor with functional nanointerfaces for sensitive luteolin detection in herbal samples 具有功能纳米界面的辣根过氧化物酶介导的电化学生物传感器用于草药样品中木犀草素的敏感检测
2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-06-29 DOI: 10.1016/j.colsurfa.2026.141217
Chao-ying Xu, Guang-Hua Tong, Zhang Yi-di, T Liu, Hui-Xin Zheng, Wei Nie, Fei-Yu Zhang, Sanad Abdalbagemohammedabdalsadeg, Jun Hong, Bao-Lin Xiao
{"title":"A horseradish peroxidase-mediated electrochemical biosensor with functional nanointerfaces for sensitive luteolin detection in herbal samples","authors":"Chao-ying Xu, Guang-Hua Tong, Zhang Yi-di, T Liu, Hui-Xin Zheng, Wei Nie, Fei-Yu Zhang, Sanad Abdalbagemohammedabdalsadeg, Jun Hong, Bao-Lin Xiao","doi":"10.1016/j.colsurfa.2026.141217","DOIUrl":"https://doi.org/10.1016/j.colsurfa.2026.141217","url":null,"abstract":"","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"749 1","pages":"141217-141217"},"PeriodicalIF":0.0,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148394113","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
Investigation of surfactant effects on foam properties in quartz flotation with dodecylamine 表面活性剂对十二胺浮选石英泡沫性能影响的研究
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-01-29 DOI: 10.1016/j.colsurfa.2026.139749
Yuxin Ao , Cong Han , Yanbai Shen , Ruixue Ma , Sikai Zhao , Qiang Zhao , Baoyu Cui
{"title":"Investigation of surfactant effects on foam properties in quartz flotation with dodecylamine","authors":"Yuxin Ao ,&nbsp;Cong Han ,&nbsp;Yanbai Shen ,&nbsp;Ruixue Ma ,&nbsp;Sikai Zhao ,&nbsp;Qiang Zhao ,&nbsp;Baoyu Cui","doi":"10.1016/j.colsurfa.2026.139749","DOIUrl":"10.1016/j.colsurfa.2026.139749","url":null,"abstract":"<div><div>This study investigates the synergistic effects of three surfactants: n-octanol (OCT), sodium dodecyl sulfate (SDS), and cetyltrimethylammonium bromide (CTAB) combined with dodecylamine (DDA) on foam properties and quartz flotation. Results show that at optimized concentrations, the impact on foam generation and liquid-phase stability followed the order: CTAB &gt; OCT &gt; SDS, while volumetric stability ranked as CTAB &gt; SDS &gt; OCT. Foam performance and persistence were inversely correlated with particle size, with smaller particles benefiting more from the combined reagents. All surfactants modified gas-liquid interfacial properties, altering foam dynamics. While surfactant incorporation significantly reduced the required DDA dosage, the flotation capacity of quartz remained largely unchanged. This study provides valuable insights into the role of surfactant-DDA combinations in enhancing foam stability and flotation efficiency, offering practical implications for industrial flotation processes.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139749"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171077","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
Effects and mechanisms of zero-valent iron-loaded corn straw biochars on Cd(II) adsorption onto loessial soil 零价载铁玉米秸秆生物炭对黄土吸附Cd(II)的影响及机理
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-01-30 DOI: 10.1016/j.colsurfa.2026.139729
Xujun Nan , Baowei Zhao , Fengfeng Ma , Yuling Chen , Hai Wang , Dengdi Xu
{"title":"Effects and mechanisms of zero-valent iron-loaded corn straw biochars on Cd(II) adsorption onto loessial soil","authors":"Xujun Nan ,&nbsp;Baowei Zhao ,&nbsp;Fengfeng Ma ,&nbsp;Yuling Chen ,&nbsp;Hai Wang ,&nbsp;Dengdi Xu","doi":"10.1016/j.colsurfa.2026.139729","DOIUrl":"10.1016/j.colsurfa.2026.139729","url":null,"abstract":"<div><div>Cadmium (Cd) contamination in loess is a growing environmental concern due to its toxicity and mobility. Stabilization-based remediation technology is a promising approach, and Fe<sup>0</sup>-modified biochar exhibits strong immobilization performance. In this study, nano zero-valent iron (nZVI) was synthesized via the liquid-phase reduction method and loaded onto corn straw biochar prepared at 300°C and 600°C (MSB300 and MSB600) to form composite adsorbents (nZVI@MSB300 and nZVI@MSB600). The adsorption behavior of Cd(II) on loess soil (Ls) and 1:9 (w/w) biochar–soil mixtures (nZVI@MSB300-Ls and nZVI@MSB600-Ls) was investigated by batch experiments. The effects of contact time, initial Cd(II) concentration, and solution pH on the adsorption behavior were tested. Kinetics, isotherms, and material characterization were investigated to elucidate the sorption performance and mechanisms. The maximum adsorption capacities of Ls, nZVI@MSB300-Ls, and nZVI@MSB600-Ls for Cd(Ⅱ) were 6.3, 9.8, and 13.0 mg/g, respectively, with nZVI@MSB600-Ls exhibiting the highest performance. The adsorption kinetics conformed to the pseudo-second-order model (<em>R</em>²≥0.91), and the adsorption isotherms fitted the Langmuir model (<em>R</em>²≥0.95), indicating a chemisorption-dominated mechanism. Post-adsorption characterization using Scanning electron microscope-Energy dispersive spectrometer (SEM–EDS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), and X-ray photoelectron spectroscopy (XPS) revealed that nZVI@MSB300 and nZVI@MSB600 mainly immobilized Cd(II) through complexation, cation exchange, cation–π interactions, and precipitation, whereas loess primarily relied on complexation and precipitation. These results demonstrate that nZVI@MSB amendment effectively enhances Cd(II) adsorption onto loess, offering a promising immobilization strategy for mitigating cadmium contamination in soils.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139729"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171078","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
Sequential silica- and phosphate-assisted zirconia coating for phase stabilization of micrometer-sized platy γ-alumina 连续二氧化硅和磷酸盐辅助氧化锆涂层用于微米级γ-氧化铝板的相稳定
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-01-27 DOI: 10.1016/j.colsurfa.2026.139721
Shingo Machida , Daisaku Yokoe , Toshimichi Shibue , Hajime Okawa , Takayuki Nagano
{"title":"Sequential silica- and phosphate-assisted zirconia coating for phase stabilization of micrometer-sized platy γ-alumina","authors":"Shingo Machida ,&nbsp;Daisaku Yokoe ,&nbsp;Toshimichi Shibue ,&nbsp;Hajime Okawa ,&nbsp;Takayuki Nagano","doi":"10.1016/j.colsurfa.2026.139721","DOIUrl":"10.1016/j.colsurfa.2026.139721","url":null,"abstract":"<div><div>Sequential modification was applied to stabilize of γ-alumina toward phase transformation into α-alumina even at the relatively high temperature of 1300°C. A zirconia layer was first deposited, followed by phosphorus introduction through trimethylphosphate treatment, and finally a silica coating <em>via</em> a sol–gel reaction. Phase and structural evolution were characterized by X-ray diffraction, solid-state nuclear magnetic resonance, and electron microscopy. While zirconia-coated specimens transformed into α-alumina at 1300°C, the combined incorporation of phosphorus and silica—through sequential coatings of zirconia containing phosphorus and silica—effectively suppressed zirconia crystallization on γ-alumina. This stabilization also delayed the γ-to-α phase transformation even after calcination at 1300°C. In this process, phosphorus contributes to the stabilization through the formation of zirconium and aluminum phosphates, resulting from its diffusion from the zirconia layers into the underlying γ-alumina, whereas silica promotes the formation of Si–O–Zr linkages while preserving its coating layer. These effects cooperatively suppress zirconia crystallization. Therefore, these results demonstrated that sequential multi-element modification provides a promising route to enhance the phase stability of various as-prepared γ-aluminas.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139721"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076490","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
Dual modulation vertical transistor fabricated by CVD grown CsPbBr3 as channel layer and MWCNT as source electrode 以CVD生长CsPbBr3为沟道层,MWCNT为源电极制备双调制垂直晶体管
IF 5.4 2区 化学
Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2026-05-20 Epub Date: 2026-01-30 DOI: 10.1016/j.colsurfa.2026.139771
Bingxue Liu , Chandrasekar Perumalveeramalai , Chuanbo Li , Peipei Ma , Bin Zou
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