Journal of Colloid and Interface Science最新文献_第10页

Assembly of filament-like supraparticles in confined vortex rings 受限涡旋环中丝状超粒子的集合

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-22 DOI: 10.1016/j.jcis.2025.139039

Tero Kämäräinen , Sara Li Deuso , Stephan Müssig , Leoni Luthardt , Yuta Hatanaka , Yuichi Tozuka , Kazunori Kadota , Karl Mandel

{"title":"Assembly of filament-like supraparticles in confined vortex rings","authors":"Tero Kämäräinen , Sara Li Deuso , Stephan Müssig , Leoni Luthardt , Yuta Hatanaka , Yuichi Tozuka , Kazunori Kadota , Karl Mandel","doi":"10.1016/j.jcis.2025.139039","DOIUrl":"10.1016/j.jcis.2025.139039","url":null,"abstract":"<div><div>Assembling nanoscale building blocks into larger supraparticle constructs has emerged as a promising avenue to create highly functional particle systems for numerous applications. In the vortex ring freezing method, toroidal supraparticles can be fabricated through the consolidation of colloidal particles in a vortical flow field generated by an impinging droplet in a reservoir of coagulant. Interactions between a vortex ring with its surroundings have been studied systematically in the past decades but a similar perspective is lacking in the application of vortex rings to material assembly. Herein, we show that imposing a quasi-two-dimensional vortex confinement, by limiting the vertical dimension of the reservoir, gives rise to a rapid, radially expanding vortex ring that enables the preparation of millimeter-sized supraparticle filaments templated by the vortex tube geometry. We employ superparamagnetic iron oxide nanoparticles (SPIONs) dispersed in chloroform as model building blocks that are introduced into a shallow reservoir with inclined boundaries containing an ethanol–water binary mixture functioning as the coagulant. We show that controlling the droplet SPION concentration, reservoir water content, and the degree of confinement (reservoir volume), can be used to tune the filament assembly process and the ensuing filament morphology. Our results highlight the importance of employing interactions between vortex rings with their surroundings and expand the potential of vortex-based colloidal assembly methods to harness the complex non-equilibrium dynamics of multiphase systems toward the creation of macroscale filamentous nanostructured supraparticle assemblies.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139039"},"PeriodicalIF":9.7,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Synthesis of multicomponent oxygen evolution reaction coatings via block copolymer templating with vapor- and solution-phase precursors 气相和固相前驱体嵌段共聚物模板法合成多组分析氧反应涂料

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-22 DOI: 10.1016/j.jcis.2025.139078

Khalil Omotosho , Chinemerem Ozoude , Vasanta Gurung , Progna Banerjee , Alexander Filatov , Elena Shevchenko , Diana Berman

{"title":"Synthesis of multicomponent oxygen evolution reaction coatings via block copolymer templating with vapor- and solution-phase precursors","authors":"Khalil Omotosho , Chinemerem Ozoude , Vasanta Gurung , Progna Banerjee , Alexander Filatov , Elena Shevchenko , Diana Berman","doi":"10.1016/j.jcis.2025.139078","DOIUrl":"10.1016/j.jcis.2025.139078","url":null,"abstract":"<div><div>Porous mixed transition metal oxide heterostructures are promising electrocatalysts due to their high surface area. However, achieving conformal multicomponent oxide coatings with controlled nanoscale architectures remains challenging. Here, we report a synthesis strategy that integrates solution-based swelling infiltration (SBI) with gas-phase sequential infiltration synthesis (SIS) in a block copolymer template to fabricate porous, high-surface-area, conformal mixed-oxide electrocatalytic coatings. In this approach, a PS75-P4VP25 block copolymer (BCP) film is first infiltrated with transition metal acetylacetonate precursors via SBI, followed by exposure to gas phase precursors of ZnO via SIS process. Thermal annealing of the infiltrated BCP films converts them into all-inorganic Fe–ZnO, Fe–Co–ZnO, and Fe–Ni–ZnO coatings. Electrochemical testing on 70 nm thick conformal coatings demonstrates promising oxygen evolution reaction (OER) activity in alkaline media, with mass-specific current densities up to 1.0 × 10<sup>5</sup> mA/g at an overpotential of 330 mV (vs. RHE) at ultralow loading (∼0.005 g/cm<sup>2</sup>). Among the compositions, Fe–Co–ZnO and amorphous Fe–Ni–ZnO show the best OER performance, delivering current densities of 2.00 and 3.04 mA/cm<sup>2</sup>, respectively, compared to 1.52 mA/cm<sup>2</sup> for Fe–ZnO. This work establishes SBI–SIS as a versatile route for fabricating nm-thin, high-performance multicomponent oxide heterostructures on cost-efficient supports, enabling efficient catalyst utilization in electrochemical energy conversion applications.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139078"},"PeriodicalIF":9.7,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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-adaptive antifouling coatings from amphiphilic methacrylate-based copolymers: synthesis, characterization, and performance evaluation 两亲性甲基丙烯酸酯基共聚物的表面自适应防污涂料：合成、表征和性能评价

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-21 DOI: 10.1016/j.jcis.2025.139081

Miriam Peña-Figueroa , Laura Saa , Aitziber L. Cortajarena , Alberto Alvarez-Fernandez , Ester Verde-Sesto , Armando Maestro

{"title":"Surface-adaptive antifouling coatings from amphiphilic methacrylate-based copolymers: synthesis, characterization, and performance evaluation","authors":"Miriam Peña-Figueroa , Laura Saa , Aitziber L. Cortajarena , Alberto Alvarez-Fernandez , Ester Verde-Sesto , Armando Maestro","doi":"10.1016/j.jcis.2025.139081","DOIUrl":"10.1016/j.jcis.2025.139081","url":null,"abstract":"<div><div>Biofouling remains a persistent issue in biomedical applications such as tissue engineering, wound healing, and the use of medical devices. Developing antifouling coatings that can perform reliably on both hydrophilic and hydrophobic surfaces is a significant challenge. In this work, amphiphilic random copolymers composed of poly(ethylene gly<em>co</em>l) methyl ether methacrylate and 2-acetoacetoxy ethyl methacrylate [P(OEGMA-<em>co</em>-AEMA)] were synthesized through controlled radical polymerization. These copolymers were deposited onto substrates using the Langmuir–Blodgett technique, enabling precise control over film formation at the air–water interface. Structural analysis using atomic force microscopy, ellipsometry, and adhesion force mapping showed that the copolymers self-assembled into nanostructured domains due to phase segregation between hydrophilic and hydrophobic segments. The orientation of these domains was influenced by the underlying substrate: OEGMA segments aligned toward hydrophilic surfaces, while AEMA segments oriented toward hydrophobic ones. This substrate-responsive organization led to uniform film coverage and distinct surface morphologies tailored to the surface chemistry. Bacterial adhesion assays demonstrated that the coatings significantly reduced fouling, achieving up to 80 % reduction in bacterial attachment on both types of substrates. The ability of these nanostructured films to adapt their configuration based on surface properties, while maintaining effective antifouling behavior, underscores their potential as broadly applicable surface coatings. These results support the development of versatile, high-performance antifouling materials suited to a wide range of biomedical environments.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139081"},"PeriodicalIF":9.7,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Hierarchical tremella flower of P-doped cobalt molybdenum oxide/layered double hydroxide nanocomposite as bifunctional electrocatalysts for overall water splitting 分层银耳花p掺杂钴钼氧化物/层状双氢氧化物纳米复合材料作为双功能电催化剂的全面水分解

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-21 DOI: 10.1016/j.jcis.2025.139075

Dan Han , Mingyan Zhang , Haochen Zhang , Yongyi Zhang , Jinping Wang , Rui Yang , Chunling Zuo , Xiaoshuang Chen

{"title":"Hierarchical tremella flower of P-doped cobalt molybdenum oxide/layered double hydroxide nanocomposite as bifunctional electrocatalysts for overall water splitting","authors":"Dan Han , Mingyan Zhang , Haochen Zhang , Yongyi Zhang , Jinping Wang , Rui Yang , Chunling Zuo , Xiaoshuang Chen","doi":"10.1016/j.jcis.2025.139075","DOIUrl":"10.1016/j.jcis.2025.139075","url":null,"abstract":"<div><div>Electrolysis of water is an environmental protection technology to generate hydrogen and alleviate energy depletion problem. In this paper, the hierarchical tremella flower composite was fabricated by nickel‑iron layered double hydroxide (NiFeLDH) and nonmetallic phosphorus-doped cobalt molybdenum oxide (P-CMO). A good deal of uniform nanosheets with the thickness of ∼48 nm constitute three-dimensional (3D) flower architecture. Compared with NiFeLDH and P-CMO, the P-CMO/NiFeLDH exhibits excellently electrocatalytic activity in oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), achieving the overpotentials (ƞ<sub>10</sub>) of 254.9 mV and 96.3 mV as well as the Tafel slopes of 35.5 mV dec<sup>−1</sup> and 79.2 mV dec<sup>−1</sup>, respectively. Furthermore, it requires a cell voltage of 1.43 V to reach a current density of 10 mA cm<sup>−2</sup> in an electrolyzer consisting of P-CMO/NiFeLDH as both anode and cathode. The characterizations and density functional theory (DFT) calculations demonstrate that the interfacial synergism of P-CMO/NiFeLDH can induce the electron redistribution by charge transfer from NiFeLDH to P-CMO, augment the generation of high valence nickel, decrease the reaction energy barrier and enhance the reaction kinetics. This work declares that the layered double hydroxide integrated with heteroatom-substitutional transition metal oxide furnishes an affordable route for devising efficient electrocatalysts in water-splitting application.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139075"},"PeriodicalIF":9.7,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Surfactant enhanced spreading on polymeric substrates of various surface energy. 表面活性剂增强了在不同表面能聚合物基底上的扩散。

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-21 DOI: 10.1016/j.jcis.2025.139074

Nina M Kovalchuk, Masanobu Sagisaka, Hinata Komiyama, Mark J H Simmons

{"title":"Surfactant enhanced spreading on polymeric substrates of various surface energy.","authors":"Nina M Kovalchuk, Masanobu Sagisaka, Hinata Komiyama, Mark J H Simmons","doi":"10.1016/j.jcis.2025.139074","DOIUrl":"https://doi.org/10.1016/j.jcis.2025.139074","url":null,"abstract":"<p><strong>Hypothesis: </strong>In the case of complete wetting, the mechanism by which surfactant solutions can spread over solid substrates much faster than pure liquids is still not understood, despite numerous studies. Spreading should be strongly influenced by the adsorption of surfactant on the substrate depending on the specific substrate chemistry and heterogeneity, but this has been barely addressed in the literature. Moreover, it is not clear which substrate characteristics are of importance. We hypothesise that substrate energy components are of importance, whereas the contact angle of water (CAW) is not always suitable for prediction of the spreading kinetics of surfactant solutions.</p><p><strong>Experiments: </strong>The spreading of aqueous surfactant solutions was studied on 7 different polymeric substrates characterised by surface roughness 1.6-480 nm, surface energy 38.5-61.6 mJ/m<sup>2</sup> and CAW 43-81°.</p><p><strong>Findings: </strong>CAW does not provide a complete substrate characterisation for spreading of surfactant solutions: the same solution demonstrated different spreading kinetics on different substrates with the same CAW. Spreading kinetics was characterised by the dependence of spread area, A, with time, t, being A∝t<sup>α</sup>. For complete wetting, all surfactant solutions on all substrates began the spreading process with a spreading exponent α ≤ 0.5, but two of them later went into superspreading mode with α ≥ 1. On substrates with the highest and lowest surface energy, superspreading solutions begin spreading with α ∼ 0.2, similar to pure liquids. On some substrates only spreading with α ∼ 0.2 was observed.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 Pt 1","pages":"139074"},"PeriodicalIF":9.7,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Biomimetic platinum–based nanoplatform for photoacoustic imaging–guided multimodal glioblastoma therapy 光声成像引导多模态胶质母细胞瘤治疗的仿生铂基纳米平台

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-21 DOI: 10.1016/j.jcis.2025.139082

Gongning Chen , Yuejia Ding , Xiaojuan Hu , Lan Yang , Dandan Zhao , Yehui Kang , Xiaozhou Mou , Chunjie Hou , Yu Cai

{"title":"Biomimetic platinum–based nanoplatform for photoacoustic imaging–guided multimodal glioblastoma therapy","authors":"Gongning Chen , Yuejia Ding , Xiaojuan Hu , Lan Yang , Dandan Zhao , Yehui Kang , Xiaozhou Mou , Chunjie Hou , Yu Cai","doi":"10.1016/j.jcis.2025.139082","DOIUrl":"10.1016/j.jcis.2025.139082","url":null,"abstract":"<div><div>Glioblastoma (GBM) presents a complex therapeutic challenge owing to its aggressive progression, immunosuppressive tumor microenvironment, and the restrictive nature of the blood brain barrier (BBB). To address these limitations, we developed a biomimetic nanoplatform (Pt-IEICO-4F@dOMV) via incorporating mesoporous platinum nanoparticles (Pt NPs) as a multifunctional catalytic core. These Pt NPs catalyze the Fenton reaction to enhance chemodynamic therapy while improving photothermal conversion efficiency under near-infrared (NIR) irradiation. This dual-action mechanism not only directly destroys tumor cells via photothermal ablation but also accelerates the Fenton reaction kinetics, thereby boosting reactive oxygen species generation during photodynamic and sonodynamic therapies. 2,2′-((2Z,2′Z)-((5,5′-(4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydro-s-indaceno[1,2-b,5,6-b']dithiophene-2,7-diyl)bis(4-((2-ethylhexyl)oxy)thiophene-5,2-diyl))bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (IEICO-4F) is an effective photosensitizer and a sonosensitizer, which is characterized by an acceptor–donor–acceptor architecture that enables efficient NIR absorption and facilitates deep-tissue penetration. The detergent-treated outer membrane vesicle (dOMV) coating facilitates BBB penetration and enables specific targeting of GBM. In vivo studies revealed robust tumor accumulation, effective photoacoustic imaging–guided multimodal therapy, and excellent biosafety. The resulting Pt-IEICO-4F@dOMV nanoplatform offers an innovative approach for GBM treatment, leveraging Pt-mediated multimodal synergy to overcome complex therapeutic barriers.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139082"},"PeriodicalIF":9.7,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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-enhanced sodium storage: High capacity and stability performance simultaneously in SnS₂@GO anodes 双增强钠存储：在ssn2 @GO阳极中同时具有高容量和稳定性能。

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-20 DOI: 10.1016/j.jcis.2025.139077

Anrui Feng , Yihan Li , Runze Liu , Yuanyuan Yang , Xue Qin

引用次数: 0

Bimetallic cobalt‑iron metal organic framework loaded chitosan cryogel for rapid activation of peroxymonosulfate to degrade tetracycline 双金属钴铁金属有机骨架负载壳聚糖低温凝胶快速活化过氧单硫酸盐降解四环素

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-20 DOI: 10.1016/j.jcis.2025.139059

Shunwen Pei, Fangfei Liu, Zhi Li, Lirong Ma, Tursun Abdiryim, Feng Xu, Jiangan You, Yun Tan, Xiong Liu

{"title":"Bimetallic cobalt‑iron metal organic framework loaded chitosan cryogel for rapid activation of peroxymonosulfate to degrade tetracycline","authors":"Shunwen Pei, Fangfei Liu, Zhi Li, Lirong Ma, Tursun Abdiryim, Feng Xu, Jiangan You, Yun Tan, Xiong Liu","doi":"10.1016/j.jcis.2025.139059","DOIUrl":"10.1016/j.jcis.2025.139059","url":null,"abstract":"<div><div>The rational design of advanced catalysts remains a major challenge for achieving efficient peroxymonosulfate (PMS) activation in Fenton-like systems, as it fundamentally governs the kinetics and mechanisms of reactive oxygen species (ROS) generation. An efficient catalyst, Co-Fe/Prussian Blue Analogues@ Chitosan (Co-Fe/PBA@CS), featuring oxygen vacancies (OVs), was designed by loading a Co-Fe/Prussian Blue Analogues (Co-Fe/PBA) into chitosan cryogels. This catalyst accelerates PMS activation to achieve rapid contaminant degradation. The Co-Fe/PBA@CS catalyst demonstrates remarkable PMS activation performance, enabling complete tetracycline (TC) degradation within 2 min, and the dynamic evolution process of active sites is revealed. After 9 catalytic cycles, the degradation efficiency is still remained above 97 %. The catalytic mechanism is systematically investigated through radical quenching experiments, probe analysis and electron paramagnetic resonance (EPR) analysis, verifying that singlet oxygen (<sup>1</sup>O<sub>2</sub>), superoxide radical (•O<sub>2</sub><sup>−</sup>) and sulfate radicals (SO<sub>4</sub><sup>•−</sup>) serve as the primary ROS species. TC degradation pathway explored by detection of intermediates. In situ Raman spectroscopy and density functional theory calculations confirm that OVs promote the generation of <sup>1</sup>O<sub>2</sub>. This study provides a facile strategy for the design of highly efficient catalysts in PMS-activated contaminant degradation system.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139059"},"PeriodicalIF":9.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Integrating of cobalt hydroxyl carbonate with MXene/reduced graphene oxide aerogel for efficient solar-thermal evaporation of wastewater and simultaneous multi-pathway degradation of pollutant mixtures. 碳酸羟基钴与MXene/还原氧化石墨烯气凝胶的集成，用于废水的高效太阳能热蒸发和同时多途径降解污染物混合物。

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-20 DOI: 10.1016/j.jcis.2025.139073

Zhi-Hao Wang, Fan-Zhen Jiao, Jing Wu, Sheng-Xing Hou, Qiu-Han Fan, Xiaojun Ma, Zhong-Zhen Yu, Jin Qu

{"title":"Integrating of cobalt hydroxyl carbonate with MXene/reduced graphene oxide aerogel for efficient solar-thermal evaporation of wastewater and simultaneous multi-pathway degradation of pollutant mixtures.","authors":"Zhi-Hao Wang, Fan-Zhen Jiao, Jing Wu, Sheng-Xing Hou, Qiu-Han Fan, Xiaojun Ma, Zhong-Zhen Yu, Jin Qu","doi":"10.1016/j.jcis.2025.139073","DOIUrl":"https://doi.org/10.1016/j.jcis.2025.139073","url":null,"abstract":"<p><p>Although integrating solar steam generation with catalytic degradation constitutes a promising strategy for addressing water shortage and environmental challenges, in practical applications, the complex mixture of pollutants in wastewater competes for active sites on catalyst surface, lowering catalytic degradation efficiency. Herein, two-dimensional transition metal carbonitride (MXene)/reduced graphene oxide (rGO)/cobalt hydroxyl carbonate (CCH) composite aerogels are fabricated by in situ growth of CCH catalysts on MXene/rGO hydrogels followed by vertical-freezing and vacuum freeze-drying. The conductive MXene component facilitates an efficient electron transfer process between peroxymonosulfate and pollutants, while the active sites of CCH selectively activate peroxymonosulfate to generate singlet oxygen. The combination of electron transfer and singlet oxygen processes effectively addresses the challenge of simultaneous degradation of complex pollutants. The bifunctional MXene/rGO/CCH composite aerogel is efficient in simultaneous solar-thermal evaporation of water and catalytic degradation of pollutants, achieving a high evaporation rate of 2.2 kg m<sup>-2</sup> h<sup>-1</sup> with an energy efficiency of 97 % under 1-sun irradiation, and a rapid degradation of methyl orange in 6 min and bisphenol A in 30 min. Notably, the bifunctional aerogel evaporator demonstrates remarkable efficiency in purifying the mixture of organic pollutants, achieving comparable degradation rates to those of degrading individual pollutants. Integrating the solar steam generation with multi-pathway catalytic degradation constitutes a sustainable and eco-friendly strategy for efficient solar-thermal evaporation of wastewater and simultaneous catalytic degradation of organic pollutant mixtures.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 Pt 1","pages":"139073"},"PeriodicalIF":9.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145205203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Identification of synergies in polyaniline supported cobalt polyphthalocyanine for efficient and selective CO2 electroreduction to CO 聚苯胺负载钴聚酞菁高效选择性CO2电还原成CO的协同效应鉴定

IF 9.7 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-09-20 DOI: 10.1016/j.jcis.2025.139071

Shanshan Xia, Yonghua Chen, Ting-Ting Li

{"title":"Identification of synergies in polyaniline supported cobalt polyphthalocyanine for efficient and selective CO2 electroreduction to CO","authors":"Shanshan Xia, Yonghua Chen, Ting-Ting Li","doi":"10.1016/j.jcis.2025.139071","DOIUrl":"10.1016/j.jcis.2025.139071","url":null,"abstract":"<div><div>Electrocatalytic CO<sub>2</sub> reduction reaction (eCO<sub>2</sub>RR) to CO is a viable pathway for sustainable fuel generation, though obstacles like high activation energies and the competing hydrogen evolution reaction (HER) remain unresolved. To overcome these limitations, we engineered a self-supported PANI@CoPPc/CP electrode, combining polyaniline (PANI) with cobalt polyphthalocyanine (CoPPc) to boost eCO<sub>2</sub>RR efficiency. Fabrication involved a straightforward two-step process: electropolymerizing PANI onto carbon paper (CP), followed by solvothermal deposition of CoPPc. The PANI matrix contributes a conductive π-conjugated framework and nitrogen-rich functionalities, which increase CO<sub>2</sub> adsorption, stabilize critical intermediates, and inhibit HER, whereas the CoN<sub>4</sub> active sites in CoPPc provide robust catalytic performance. Remarkably, PANI@CoPPc/CP affords a Faradaic efficiency for CO generation (FE<sub>CO</sub>) of 99.2 % at −0.8 V vs reversible hydrogen electrode (RHE), a turnover frequency (TOF) value of 11,594 h<sup>−1</sup> at −1.10 V vs RHE, and exceptional stability. Operando attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy identifies the stabilization of *COOH and *CO intermediates, corroborating enhanced reaction kinetics. Additionally, the electrode's hydrophobic surface and porous architecture improve mass transport. This study not only presents a highly effective electrocatalyst for CO<sub>2</sub>-to-CO conversion but also introduces a scalable approach for coupling molecular catalysts with conductive polymers, with potential applications across renewable energy systems.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"703 ","pages":"Article 139071"},"PeriodicalIF":9.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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