Journal of Colloid and Interface Science最新文献

{"title":"Tri-functional electrocatalysis with mass transfer-optimized 3D NiCo alloy for continuous energy conversion system","authors":"Gangwen Fu ,&nbsp;Yu Tian ,&nbsp;Yong Gao ,&nbsp;Jingwen Qiu ,&nbsp;Yuxuan Wang ,&nbsp;Wenbo Zhao ,&nbsp;Leiqing Cao ,&nbsp;Junyuan He ,&nbsp;Mengyang Li ,&nbsp;Zhenghui Pan ,&nbsp;Yu Lei ,&nbsp;Zongkui Kou ,&nbsp;Jun Ding ,&nbsp;Xi Xu","doi":"10.1016/j.jcis.2026.140024","DOIUrl":"10.1016/j.jcis.2026.140024","url":null,"abstract":"<div><div>Mass transfer limitations directly govern the utilization efficiency of active sites in gas-involving reactions, thereby hindering intrinsically active sites from functioning effectively at high current densities. Consequently, designing porous structures to improve the transport efficiency of both reactants and products constitutes a central challenge for realizing efficient and stable electrocatalytic processes. To address this challenge, a nickel‑cobalt (NiCo) alloy was fabricated via digital light processing (DLP) technology, and cobalt-nanocarbon (<em>Co</em> NC) active material was incorporated in situ to establish a robust catalytic system. Furthermore, the deliberate structural design promoted bubble mass-transfer kinetics, thereby further improving its performance across multiple catalytic reactions. The electrolysis water device composed of it can operate stably for over 500 h at a current density of 500 mA cm⁻² and a voltage of 1.78 V. The assembled zinc-air battery shows a peak power density of 73.5 mW cm⁻² and outstanding cyclic durability, lasting for over 300 h. More importantly, the assembled integrated device generates an equivalent amount of hydrogen during both day and night. This innovative strategy offers a reliable reference for the practical implementation of three-dimensional electrodes in highly efficient mass transfer reactions.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140024"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130717","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}

{"title":"Propelling lithium transport kinetics and inhibiting Al corrosion by high-coordination-strength anion for low-temperature lithium-metal batteries","authors":"Jin-Xiu Chen ,&nbsp;Fei Zhao ,&nbsp;Tong Wu ,&nbsp;Jin-Hao Zhang ,&nbsp;Xiao-Zhong Fan ,&nbsp;Zhi-Yuan Gu ,&nbsp;Xiao-Dong Chen ,&nbsp;Xin-Bing Cheng ,&nbsp;Lin Zhu ,&nbsp;Yu-Zhen Zhao ,&nbsp;Long Kong","doi":"10.1016/j.jcis.2026.140051","DOIUrl":"10.1016/j.jcis.2026.140051","url":null,"abstract":"<div><div>The deployment of high-voltage lithium metal batteries (LMBs) under low-temperature conditions holds considerable importance for the advancement of fast charging technologies. Nevertheless, such deployment necessitates electrolyte designs with contradictory requirements, most notably in the realm of solvation structure. Principally, the lithium salts with weakly coordinated anions facilitate the rapid Li⁺ transport due to large population of solvent separated ion pairs (SSIPs) and low energy of de-anion process at low temperatures. However, such salts corrode aluminum (Al) foil and worsen the battery stability at high voltages. Herein, this fundamental conflict has been unified through surface electric field and interface compositions. The strongly coordinated anions exhibit higher negative charge density due to its high electron constraining capability, as demonstrated with electron localization function (ELF) and nuclear magnetic resonance (NMR). Such characteristic drives them to exhibit faster migration towards the against direction of Li⁺ under un electric field and hence facilitate the Li⁺ de-coordination. Meanwhile, the X-ray photoelectron spectroscopy (XPS) demonstrated that the strongly coordinated anions benefit the formation of Li₂CO₃ and Li₂O in solid electrolyte interface (SEI), which exerts a stronger attraction on the Li⁺ of solvation structure, thereby assisting the Li⁺ de-coordination process. The contradiction between Li⁺ transport kinetics and Al corrosion can be unified with high-coordination-strength anion at low-temperature. This formulated electrolyte enables stable operation of high-voltage LMBs even at low temperatures, demonstrating a practical guiding principle for extreme-condition batteries.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140051"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146163339","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}

{"title":"Cooperative dual-wavelength energy storage in self-powered perovskite NIR cryptodetectors","authors":"Xinyao Dong ,&nbsp;Jianing Fan ,&nbsp;Xingyu Wu ,&nbsp;Sen Liu ,&nbsp;Yuhan Jing ,&nbsp;Ziyi Zhao ,&nbsp;Qiyue Tang ,&nbsp;Xiumei Yin ,&nbsp;Wen Xu ,&nbsp;Bin Dong","doi":"10.1016/j.jcis.2026.139921","DOIUrl":"10.1016/j.jcis.2026.139921","url":null,"abstract":"<div><div>While optical encryption enhances data security, conventional single-wavelength protocols remain vulnerable to interception due to limited dynamic decryption capabilities. Here, we report a cooperative dual-wavelength (980/1550 nm) energy storage mechanism in Er³⁺, Tm³⁺ co-doped Cs₂NaYbCl₆ nanoparticles, achieving a 53.8-fold enhancement in red emission compared to single-wavelength excitation. Leveraging this synergy, we developed a self-powered photodetector (FTO/PEDOT: PSS/PVP-MAPbI_2.5Br_0.5/PCBM/Ag) featuring polyvinylpyrrolidone-induced defect states and an optimized halide composition (I^－/Br^－ = 5:1). This architecture enables wavelength-selective charge trapping, effectively restricting device activation to synchronized dual-wavelength inputs. By integrating time-domain multiplexing with wavelength selective thresholds, we implement AND-gate logic encryption, where 1550 nm radiation encodes the data and 980 nm serves as the decoding key. Compared to traditional single-wavelength systems, this dual-authentication protocol significantly enhances anti-interception capabilities and enables direct optical-domain key verification, eliminating the requirement for complex optoelectronic conversion modules or dedicated processing chips.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139921"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077113","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}

{"title":"Oppositely directed epitaxial growth of nickel (oxy)hydroxide amorphous oxygen-deficient skin for effective oxygen evolution","authors":"Xiaoqing Cheng ,&nbsp;Ze Li ,&nbsp;Yuhui Huang ,&nbsp;Fanjia Sun ,&nbsp;Liang Dong ,&nbsp;Youbin Zheng ,&nbsp;Jianbing Zang ,&nbsp;Jinsheng Li ,&nbsp;Ruixia Zhong ,&nbsp;Pengfei Li ,&nbsp;Zheng-Jun Wang","doi":"10.1016/j.jcis.2026.140015","DOIUrl":"10.1016/j.jcis.2026.140015","url":null,"abstract":"<div><div>The amorphous nickel (oxy)hydroxides (NiO_x(OH)_y) with enriched oxygen vacancies (O_v) grown on the surface of Ni₃S₂ substrate were designed to boost oxygen evolution reaction (OER) activity. The achieved electrocatalysts showed excellent OER performance with η_j10 of 130 mV, η_j100 of 256 mV, and stability for at least 375 h, outperforming the commercial RuO₂ catalysts and most of the state-of-the-art OER catalysts. A new universal stoichiometric mismatch method was developed to synthesize this special structure—by etching low-sulfur-content sulfides in an alkaline aqueous environment to guide the formation of oxygen-deficient amorphous metal oxides. Further, to obtain well-direction low-sulfur nickel sulfide, a novel reverse epitaxial growth method was developed. In this method, in-situ prepared [001]- direction nano Bi₂S₃ needles were deposited on nickel foam, guiding the substrate to transform into [001]-direction Ni₃S₂ while causing Bi to detach from the surface. Here, the as-obtained amorphous oxygen-deficient material effectively activates lattice oxygen, and the oxygen vacancies along with the amorphous character at the Ni₃S₂-NiO_x(OH)_y interface trigger a unique charge transfer effect, fully activating the surface to promote OER.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140015"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146117357","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}

{"title":"Interface-stabilized gel polymer electrolyte for high-performance lithium metal batteries","authors":"Chenxi Zhu ,&nbsp;Yan Zhao ,&nbsp;Rui Xu ,&nbsp;Wenqing Lv ,&nbsp;Yao Zhao ,&nbsp;Bin Huang ,&nbsp;Hua-Feng Fei ,&nbsp;Zhijie Zhang","doi":"10.1016/j.jcis.2026.140029","DOIUrl":"10.1016/j.jcis.2026.140029","url":null,"abstract":"<div><div>Lithium metal batteries demand electrolytes that combine high ionic conductivity with mechanical robustness and interfacial stability. This study presents a novel composite gel polymer electrolyte (GPE) engineered by integrating a cyano-functionalized polysiloxane (PCMS) frameworks, diethylene glycol dimethyl ether (DEGDME) plasticizers, and electrospun polyacrylonitrile (PAN) nanofiber scaffolds. The optimized GPE system achieves an exceptional combination of properties: high ionic conductivity (3.3 × 10⁻³ S cm⁻¹ at 30 °C), outstanding Li⁺ transference number (0.79), and remarkable mechanical strength (3.9 MPa). Theoretical calculations and experimental analyses collectively confirm that the -CN groups competitively coordinate with Li⁺, restructuring the solvation environment to favor TFSI⁻ anion participation, thereby facilitating the formation of a robust solid electrolyte interphase (SEI) enriched with LiF and Li₃N. As a result, the GPE demonstrates a wide electrochemical stability window (5.3 V vs. Li⁺/Li) and stable lithium plating/stripping for 1000 h at 0.1 mA cm⁻². Additionally, LiFePO₄/GPE/Li full cells achieve 94.9% capacity retention after 500 cycles at 0.5C, while NCM811/GPE/Li cells deliver a high discharge capacity of 153.8 mAh g⁻¹ with 86.5% retention after 150 cycles. This work establishes a scalable and promising strategy for the development of high-performance lithium metal batteries.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140029"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130785","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}

{"title":"Ferroptosis-sensitizing nanoprodrug system for synergistic therapy of triple-negative breast cancer","authors":"Yong Huang ,&nbsp;Tao Quan ,&nbsp;Bowen Li ,&nbsp;Chaohui Zhen ,&nbsp;Haiqian Zhang ,&nbsp;Zhiyao Li ,&nbsp;Chongzhi Wu ,&nbsp;Rui Liang ,&nbsp;Lihe Sun ,&nbsp;Xin Xie","doi":"10.1016/j.jcis.2026.140048","DOIUrl":"10.1016/j.jcis.2026.140048","url":null,"abstract":"<div><div>Triple-negative breast cancer (TNBC), lacking effective therapeutic targets, is highly aggressive, prone to metastasis, and associated with poor prognosis, highlighting the necessity for innovative therapeutic strategies. Ferroptosis, an emerging form of iron-dependent programmed cell death, presents a promising treatment approach. However, its effectiveness is often hindered by adaptive resistance within the tumor microenvironment and inefficient drug delivery. To address these limitations, the glutathione (GSH)-responsive disulfide linker (-SS-) was utilized to engineer rhein (Rhe, chemotherapeutic agent) and ferrocene (Fc, ferroptosis booster) into the self-assembling small-molecule prodrug RSSF. Sorafenib (SOR), a ferroptosis inducer, was stably loaded into RSSF via a simple nanoprecipitation method, yielding the newly nanoprodrug designated as SOR@RSSF nanoparticles (NPs) for the combination therapy of TNBC. SOR@RSSF NPs exhibit markedly enhanced cellular uptake and enable the highly specific and synchronous release of Rhe, Fc, and SOR in response to intracellular GSH levels. Notably, Fc efficiently generates hydroxyl radicals (•OH) through the Fenton reaction, thereby inducing pronounced oxidative stress, while SOR concurrently impaired the cellular ferroptosis defense machinery. Combined with the chemotherapeutic activity of Rhe, the resulting lipid peroxide (LPO) accumulation and GSH depletion synergistically trigger both ferroptosis and apoptosis selectively in tumor cells. In a 4T1 tumor-bearing mouse model, SOR@RSSF NPs significantly inhibited tumor progression while maintaining a favorable biosafety profile. Overall, this study presents a promising ferroptosis-sensitizing strategy using a nanoprodrug delivery system for combination therapy against TNBC.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140048"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130772","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}

{"title":"Synergistic space-electron regulation under interlayer confinement: Disrupting oxygen evolution/reduction reaction scaling relations via dual-pathway control","authors":"Xinyi Lu ,&nbsp;Haicai Huang ,&nbsp;Yihui Bao ,&nbsp;Yanyan Xia ,&nbsp;Zhencheng Ye ,&nbsp;Houyang Chen","doi":"10.1016/j.jcis.2026.140016","DOIUrl":"10.1016/j.jcis.2026.140016","url":null,"abstract":"<div><div>Oxygen evolution and reduction reactions (OER/ORR) are fundamental to energy conversion technologies such as water electrolyzers and fuel cells. However, the intrinsic linear scaling relationship (LSR) between the intermediate adsorption energies limits catalytic activity. Overcoming this limitation could surpass the conventional activity-volcano relationship and unlock high-performance OER/ORR electrocatalysts. Herein, we propose a novel interlayer-confinement engineering strategy, utilizing spatially confined dual active sites in interlayer-confined dual single-atom-catalysts (iDSACs), to fundamentally break the intrinsic LSR by simultaneously manipulating reaction pathways and intermediate adsorption. Density functional theory (DFT) computations demonstrate that the synergistic space-electron effects enhance charge transfer, activate the O–O bond, and facilitate its dissociation. Further, tuning the confinement strength exerts opposing effects on various intermediates and catalysts. Consequently, this strategy effectively disrupts the LSR between *OOH and *OH adsorption, thereby improving OER and ORR activities. Additionally, an optimal interlayer distance of 7.0 Å is identified to balance dual-site synergy and steric effects, achieving low overpotentials (0.26 V for OER and 0.30 V for ORR on IrN₄). This work establishes space-electron synergy as a generic platform to disrupt adsorption scaling laws, advancing efficient electrocatalyst design and providing fundamental insights into confined electrocatalysis.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140016"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130747","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}

{"title":"K+ pre-intercalation tailored interlayer hydration engineering in hydrated V2O5: A high-capacity and ultrastable cathode for aqueous zinc-ion batteries","authors":"Tiezhong Liu,&nbsp;Huazhen Fei,&nbsp;Canwei Zheng,&nbsp;Pengjin Li,&nbsp;Zhiwei Xia,&nbsp;Can Huang,&nbsp;Shuang Hou,&nbsp;Qiang Deng,&nbsp;Tingting Liu,&nbsp;Lingzhi Zhao","doi":"10.1016/j.jcis.2026.140037","DOIUrl":"10.1016/j.jcis.2026.140037","url":null,"abstract":"<div><div>Hydrated V₂O₅ is a promising cathode material for aqueous zinc-ion batteries (ZIBs), where interlayer structural H₂O plays a crucial role in tuning Zn²⁺ storage performance. Nevertheless, the precise modulation of interlayer H₂O content remains a major challenge in material synthesis. Herein, we employ pre-intercalated K⁺ ions as structural mediators to modulate the interlayer H₂O content in hydrated V₂O₅, successfully synthesizing K_0.4V₂O₅·0.24H₂O (KVOH) with an optimized hydrated structure. The engineered hydration structure creates a greatly favorable interlayer electrostatic shielding microenvironment that effectively weakens the attraction between intercalated Zn²⁺ and V<img>O framework, thereby facilitating highly reversible and rapid Zn²⁺ (de)intercalation. Simultaneously, the pre-intercalated K⁺ ions and interlayer H₂O molecules act as structural pillars that cooperatively stabilize the host framework during prolonged charge/discharge cycling. Benefiting from these advantages, KVOH delivers a high zinc storage capacity of 469.6 mAh g⁻¹ at 0.5 A g⁻¹ and maintains 88.2% of its initial capacity after 500 cycles. Moreover, it also demonstrates outstanding long-term cycling stability, achieving 79.0% capacity retention after 5000 cycles at 10 A g⁻¹. This work reveals the crucial role of interlayer hydration chemistry in governing Zn²⁺ storage performance and provides a novel strategy for precisely modulating interlayer water content in hydrated V₂O₅ cathodes.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140037"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130698","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}

{"title":"Realizing high-performance wood-based piezoresistive sensing through an interfacial bridging approach for wearable functional integration","authors":"Hao Shen ,&nbsp;Junlan Gao ,&nbsp;Min Yu ,&nbsp;Shengquan Liu ,&nbsp;Fuquan Xiong","doi":"10.1016/j.jcis.2026.140052","DOIUrl":"10.1016/j.jcis.2026.140052","url":null,"abstract":"<div><div>Wood-based aerogels have garnered widespread attention in flexible wearable electronics owing to their sustainability, low density, and high porosity. However, extant wood-based aerogel sensors often struggle to balance high sensitivity, broad detection range, and long-term stability, primarily due to the irregular conductive filler dispersion and weak interfacial bonding within the cellulose framework. Herein, the covalent-noncovalent interfacial bridging strategy was developed to fabricate a MXene/carbon nanotube (CNT) wood aerogel piezoresistive sensor with a layered porous structure and an abundant, stable 3D conductive network. The aerogel exhibited superior elasticity (96.70% stress retention after 1000 cycles at 50% compression strain), a broad detection range (0–160 kPa), and high sensitivity (13.76 kPa⁻¹), outperforming most reported biomass-based aerogel sensors. This performance enables reliable operation across diverse applications, including physiological monitoring, human motion detection, information encoding, and wireless real-time robot control. Furthermore, when integrated with machine learning, the sensor achieves 99.44% accuracy in recognizing different hand gestures. This study presents an innovative and sustainable design strategy for high-performance wood aerogel sensors aimed at advanced flexible electronic applications.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140052"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146155631","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}

{"title":"Universal quenching-reduction engineering of controllable Cu0/Cu+ active sites in 2D heterojunctions for enhanced Fenton-like catalysis","authors":"Can Peng ,&nbsp;Zhengyan Yu ,&nbsp;Fengjiao Zhou ,&nbsp;Jiajin Lin ,&nbsp;Aihua Xu ,&nbsp;Xiuying Liu ,&nbsp;Shuaiqi Zhao ,&nbsp;Xiaoxia Li","doi":"10.1016/j.jcis.2026.139997","DOIUrl":"10.1016/j.jcis.2026.139997","url":null,"abstract":"<div><div>The construction of stable Cu⁰/Cu⁺ active sites is essential for achieving high-performance copper-based Fenton-like catalysis. In this work, we develop a novel ethanol-mediated quenching reduction strategy synergistically integrated with rational two-dimensional structural engineering to precisely construct and stabilize Cu⁰/Cu⁺ pairs within a two-dimensional Cu-CuO/TiO₂ heterojunction (CTO-Q). The approach leverages the transient thermal energy generated during rapid cooling to initiate ethanol dehydrogenation, during which in-situ electrons are released and subsequently reduce Cu²⁺ ions, thereby facilitating the controlled formation and long-term stabilization of coexisting Cu⁰/Cu⁺ species. Advanced spectroscopic characterizations provide direct evidence for the successful generation and chemical state stability of the Cu⁰/Cu⁺ active sites. The resultant CTO-Q catalyst exhibits superior PMS activation capability, achieving 95% removal of levofloxacin within 30 min, with an observed rate constant (k_obs = 0.35 min⁻¹) that is 3.89-fold higher than that of the conventional catalyst. Remarkably, the catalytic performance remains nearly unchanged after five consecutive cycles, maintaining approximately 95% degradation efficiency, which underscores its exceptional operational stability—attributable to a self-sustaining redox cycle that mitigates irreversible oxidation. The generality and scalability of this synthetic strategy are further validated by the successful fabrication of a family of two-dimensional Cu-based heterojunctions (Cu-CuO/CeO₂, Cu-CuO/SiO₂, and Cu-CuO/Al₂O₃). Critically, this methodology enables the valorization of Fenton sludge into a high-efficiency catalytic material, thereby establishing a direct link between advanced functional material design and sustainable environmental remediation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139997"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099696","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}