Journal of Colloid and Interface Science最新文献

{"title":"Π-antibonding coupling mediated regeneration strategy for efficient direct regeneration of degraded O3-type cathode materials from sodium-ion batteries.","authors":"Qingfeng Liu, Yuyun Li, Jinhua Shi, Fanbin Hu, Jiahan Qi, Yun Shen, Changjiang Li, Haigang Dong, Qi Meng, Yingjie Zhang, Peng Dong","doi":"10.1016/j.jcis.2026.141777","DOIUrl":"https://doi.org/10.1016/j.jcis.2026.141777","url":null,"abstract":"<p><p>With the advancement of the application of sodium ion batteries in large-scale energy storage and low-cost power scenarios, the direct regeneration of degraded layered oxide cathodes is of great significance for promoting the healthy development of the sodium-ion batteries industry chain. However, existing direct regeneration is limited by the dual challenges of orbital repulsion associated with the surface rock-salt phase and persistent bulk lattice distortion, which limit deep structural repair and hinder practical engineering applications. Therefore, this paper proposes a regeneration strategy mediated by π-antibonding coupling to achieve efficient direct regeneration of degraded O3-type NaNi_0.33Fe_0.33Mn_0.33O₂ (NFM) cathode materials, simultaneously achieving the dual goals of bulk lattice stability and surface structure reconstruction. In this work, π-antibonding coupling describes the π-symmetry hybridization between O 2p and transition-metal 3d t_2g orbitals, with emphasis on the resulting π-antibonding states. V⁵⁺ incorporation modulates this interaction and thereby redistributes the electron density within the oxygen layers. Furthermore, the oxygen-layer sliding energy barrier is effectively reduced, which drives the transformation of the surface rock salt phase into the active P2 phase. The ion diffusion and migration channels are opened up during the regeneration process, which promotes the migration of Na⁺, Li⁺, and Sn⁴⁺ into the bulk phase. The final formation is a composite structure of O3 bulk element gradient doping and surface P2 phase hinge. The volume change of the unit cell of the regenerated cathode material during charging and discharging is controlled at 2.57%, and the interface charge transfer resistance and Na⁺ diffusion resistance are significantly reduced. The regenerated cathode delivers an initial discharge specific capacity of 159.8 mAh g^-1 at 0.1C. At 1C, it retains 82.6% (±0.1%) of its initial capacity after 500 cycles. This work provides a feasible strategy for the direct regeneration of degraded cathode materials from spent sodium-ion batteries.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"728 ","pages":"141777"},"PeriodicalIF":9.6,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149178498","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":"From singular jets to compound droplets: Viscosity and inertia control of immiscible drop-pool impact dynamics.","authors":"Hyunji Lee, Choongyeop Lee, Hyungmin Park","doi":"10.1016/j.jcis.2026.141762","DOIUrl":"https://doi.org/10.1016/j.jcis.2026.141762","url":null,"abstract":"<p><strong>Hypothesis: </strong>Secondary-droplet composition in immiscible drop-pool impact is hypothesized to be governed by the relative motion of the oil-air and oil-water interfaces formed at the tip and inside the jet, respectively. Increasing oil (droplet) viscosity should reduce this relative motion and favor compound oil-water droplets, while crown breakup may provide an additional high-inertia route to their formation.</p><p><strong>Experiments: </strong>Silicone-oil droplet (2.7-2.8 mm in diameter) with dynamic viscosity in the range of 0.49-96.3 mPa · s, impacts a deep-water pool at 1.6-4.4 m/s, covering Froude and Ohnesorge numbers of 99-727 and 0.003-0.4, respectively. High-speed shadowgraphy and tracer-particle visualization, with tracers dispersed only in the water phase, are used to track both interfaces and identify secondary-droplet composition.</p><p><strong>Findings: </strong>Based on jet morphology and secondary-droplet composition, four regimes were identified: (i) a short jet without pinch-off, (ii) a singular jet, (iii) an oil-dominated secondary-droplet regime, and (iv) a compound secondary-droplet regime. Following the inertia-driven crater, the subsequent collapse-to-jet transition was strongly affected by oil viscosity. Increasing viscosity limited the stretching of the oil-rich portion in the jet, resulting in the thick jet. This shifted the location of primary pinch-off from the internal interface (oil secondary droplet) to the water-containing lower portion of the jet (compound one). At sufficiently high impact inertia, crown breakup provided an additional route to compound-droplet formation. These new findings establish a direct link between the coupled kinematics of the oil-air and oil-water interfaces, pinch-off location, and secondary-droplet composition in immiscible impacts.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"729 ","pages":"141762"},"PeriodicalIF":9.6,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222976","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":"Design of highly stable and scalable three-dimensional alginate-encapsulated cobalt(III) oxide–graphitic carbon nitride–bismuth(III) oxide beads for peroxymonosulfate photoactivation toward antibiotic oxidation in a real water matrix","authors":"Hamid Zouggari,&nbsp;Fatima-Zahra Mahir,&nbsp;Aida M. Diez,&nbsp;Ridha Djellabi,&nbsp;M. Ángeles Sanromán,&nbsp;Abdallah Albourine,&nbsp;Marta Pazos","doi":"10.1016/j.jcis.2026.141614","DOIUrl":"10.1016/j.jcis.2026.141614","url":null,"abstract":"<div><div>Peroxymonosulfate (PMS)-based advanced oxidation processes are often limited by unstable activation and reliance on continuous mechanical stirring to sustain high photocatalytic performance during pollutant degradation. Herein, a ternary Co₃O₄–graphitic carbon nitride (GCN)–Bi₂O₃ dual S-scheme (CoCNBi) was successfully immobilized within calcium alginate (Alg) hydrogel beads (CoCNBi@Alg) via a 3D cross-linking strategy. The biopolymer structure aids dispersion/recovery; despite low BET surface area (3.9 m²/g), enhanced electroactive area and charge-transfer supported efficient degradation. CoCNBi@Alg beads showed excellent photo-electrochemical performance, achieving substantial mineralization of Sulfamethoxazole (SMX) (up to 76.3% total organic carbon (TOC) removal) under simulated sunlight without external stirring, outperforming bare GCN, Bi₂O₃, Co₃O_4, and non-immobilized CoCNBi powder. Additionally, CoCNBi@Alg demonstrated a strong performance under real-water matrices (&gt;98% SMX degradation) and maintained ~91% efficiency after 10 cycles, with minimal metal leaching (Co: 0.05 mg/L; Bi: 0.03 mg/L). Mechanistically, the CoCNBi dual S-scheme heterojunction, coupled with Co/Bi redox cycling, facilitates effective e⁻/h⁺ separation and transfer, thereby enhancing PMS activation. In this framework, the Alg matrix acts as a 3D stabilizing scaffold, ensuring better interfacial contact and streamlining mass transfer, thereby triggering synergistic non-radical (¹O₂) and radical (SO₄^•−, ^•OH, O₂^•−) oxidative species. Liquid chromatography-mass spectrometry (LC-MS) data reveal a complex degradation process with multiple routes, including the cleavage of the sulfonamide bond, hydroxylation, and ring opening, while the reduced toxicity of intermediates was confirmed by ECOSAR predictions. This study demonstrates that the encapsulation of dual S-scheme structures within Alg provides a dependable pathway for complete mineralization.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"727 ","pages":"Article 141614"},"PeriodicalIF":9.6,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copper substitution–induced internal charge redistribution drives manganese(IV) surface passivation and growth suppression in spinel hausmannite (Mn3O4) nanoparticles","authors":"Junho Han,&nbsp;Evert J. Elzinga,&nbsp;Khondaker M.N. Alam,&nbsp;Bojeong Kim,&nbsp;Minhee Kim","doi":"10.1016/j.jcis.2026.141513","DOIUrl":"10.1016/j.jcis.2026.141513","url":null,"abstract":"<div><div>Understanding how cation substitution redistributes charge and reconfigures surface chemistry in spinel oxides is central to controlling growth and stability of nanoparticles. Here we investigate Cu incorporation into hausmannite (Mn₃O₄) and show that substitution suppresses crystallite coarsening, stabilizing ultrasmall (&lt;10 nm) nanoparticles that assemble into nanoclusters upon drying. Although Cu increases colloidal stability in suspension, drying induces charge redistribution that renders the nanoparticles non-redispersible. Structural and spectroscopic analyses indicate that Cu occupies both tetrahedral and octahedral sites while preserving the spinel framework. Periodic spin-polarized density functional theory plus Hubbard U identifies tetrahedral Cu as the preferred bulk motif, while mixed and octahedral configurations produce stronger local distortion and Mn-centered charge/spin redistribution, providing an atomistic basis consistent with suppressed coherent coarsening. The combined evidence favors internal Mn valence redistribution over vacancy-dominated compensation, although minor oxygen-vacancy contributions cannot be excluded. Depth-profiling X-ray photoelectron spectroscopy, interpreted together with sputtering-stability controls and bulk-averaged spectroscopy, is consistent with partial Mn(IV)-like enrichment at the pristine outermost surface and more extensive passivation after moderate Cu substitution; the inferred coverage depends on the assumptions of the geometric model. This passivated surface state alters reaction pathways during aging: under oxic, near-neutral conditions, pristine Mn₃O₄ undergoes redox-driven oxidative hydration and transforms to manganite, whereas Mn(IV)-passivated Cu-substituted nanoparticles largely retain the spinel phase. At extreme pH, however, proton-promoted dissolution yields amorphous Mn(IV)O₂-like products under acidic conditions, and hydroxide-mediated hydrolysis/dissolution and reprecipitation yield layered Na-birnessite under alkaline conditions. Thus, passivation selectively suppresses redox-driven transformation without eliminating acid/base reactivity. Together, these results link substitution-driven internal charge redistribution to Mn(IV)-rich surface passivation, growth suppression, and selective redox stabilization in Mn₃O₄ nanoparticles.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"727 ","pages":"Article 141513"},"PeriodicalIF":9.6,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987494","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":"Energy transfer engineering for programmable fluorescence dynamics in CsPbBr3 perovskite: Toward multimode anti-counterfeiting","authors":"Zhen Wu ,&nbsp;Xin Zhang ,&nbsp;Yiyuan Tang ,&nbsp;Wenzhao Wang ,&nbsp;Qiming Zou ,&nbsp;Lvming Qiu ,&nbsp;Jiani Liu ,&nbsp;Bin Hu ,&nbsp;Min Gong ,&nbsp;Guojie Wang","doi":"10.1016/j.jcis.2026.140063","DOIUrl":"10.1016/j.jcis.2026.140063","url":null,"abstract":"<div><div>Smart fluorescent materials with tunable fluorescence in response to external stimuli are of great interest for anti-counterfeiting applications. Herein, we develop a photoresponsive fluorescent material (PRFM) SPD-CsPbBr₃@PMMA that integrates perovskite CsPbBr₃ with photochromic spiropyran (SPD) in poly(methyl methacrylate) (PMMA), exhibiting multimode fluorescence outputs for advanced anti-counterfeiting applications. The blue-excitable CsPbBr₃ nanocrystals enable SPD-CsPbBr₃@PMMA a stable green fluorescence at 450 nm excitation wavelength. Ultraviolet light irradiation of SPD-CsPbBr₃@PMMA induces the isomerization of SPD from closed-ring to open-ring form and subsequently gives a stable red fluorescence. Fluorescence decay spectra and theoretical calculations indicate that an efficient energy transfer occurs from CsPbBr₃ to the open-ring SPD, thereby leading to significant changes in fluorescence. Upon irradiation with visible light (400–750 nm), SPD is reverted to closed-ring form, accompanied by the restoration of green fluorescence. SPD-CsPbBr₃@PMMA can exhibit complex and tunable fluorescence changes under room light, blue light, and ultraviolet light modes, making it exceptionally suited for anti-counterfeiting applications. A novel strategy for information anti-counterfeiting by combining SPD-CsPbBr₃@PMMA with Morse code and other innovative anti-counterfeiting platforms have been successfully developed. Overall, this study introduces an innovative approach to constructing multimode PRFMs, elucidates the design principles underlying fluorescence-tunable perovskite, and inspires further development in advanced anti-counterfeiting materials.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"711 ","pages":"Article 140063"},"PeriodicalIF":9.7,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135639","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":"CoS/V3S4 heterostructures wrapped by nitrogen-sulfur co-doped carbon for ultra-fast-charging sodium-ion batteries","authors":"Rui Liu ,&nbsp;Jiahui Wang ,&nbsp;Qiming Li ,&nbsp;Changlong Sun ,&nbsp;Fuyi Jiang ,&nbsp;Yijing Wang ,&nbsp;Fangyi Cheng ,&nbsp;Nana Wang ,&nbsp;Zhongchao Bai ,&nbsp;Yanli Zhou","doi":"10.1016/j.jcis.2026.140797","DOIUrl":"10.1016/j.jcis.2026.140797","url":null,"abstract":"<div><div>Metal sulfides are attractive anodes for sodium-ion batteries due to their high capacity and low polarization. However, single metal sulfides suffer from severe volume changes and sluggish kinetics. Constructing heterostructures offers a promising strategy, yet rational designs that achieve genuine ultra-fast charging capability remain scarce. Herein, we report metallic disc-like CoS/V₃S₄ heterostructures encapsulated in nitrogen‑sulfur co-doped carbon (CoS/V₃S₄@NSC). When evaluated with an ether-based electrolyte, the optimized CoS/V₃S₄@NSC exhibits high initial Coulombic efficiency (&gt;90%), high reversible capacity (622.6 mAh g⁻¹ at 0.5 A g⁻¹), excellent stability (291.5 mAh g⁻¹ after 300 cycles at 15 A g⁻¹), and remarkable ultra-fast charging capability (143.1 mAh g⁻¹ at 40 A g⁻¹ within 12 s). Combined in situ/ex situ studies and density functional theory calculations reveal metallicity, enhanced Na⁺ diffusion, and a pseudocapacitive-dominated conversion mechanism. Full cells assembled with Na₃V₂ (PO₄)₃@rGO cathodes further demonstrate long-term stability (414.1 mAh g⁻¹ after 1500 cycles at 1 A g⁻¹) and outstanding rate capability (324.8 mAh g⁻¹ at 5 A g⁻¹). This work highlights a rational heterostructure design that enables practical ultra-fast sodium-ion storage.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"722 ","pages":"Article 140797"},"PeriodicalIF":9.7,"publicationDate":"2026-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148011423","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":"Mixed-valence {Mo16} polyoxometalate enables redox-mediated active site regeneration for superior photocatalytic N2 fixation","authors":"Donghui Cui ,&nbsp;Yu Liu ,&nbsp;Xue Yang,&nbsp;Yuexin Xiang,&nbsp;Xiao Liang,&nbsp;Wenbin Xie,&nbsp;Fengyan Li","doi":"10.1016/j.jcis.2026.140768","DOIUrl":"10.1016/j.jcis.2026.140768","url":null,"abstract":"<div><div>Photocatalytic nitrogen fixation is often hindered by the rapid recombination of photogenerated charge carriers and the difficulty in activating inert N₂ molecules. Herein, an efficient {Mo₁₆}/g<strong><img></strong>C₃N₅<strong><img></strong>COOH photocatalyst is constructed via electrostatic interaction between mixed-valence molybdenum polyoxometalate {Mo^V₁₂ Mo^VI₄} and carboxyl-functionalized g<strong><img></strong>C₃N₅ (g<strong><img></strong>C₃N₅<strong><img></strong>COOH). Under simulated solar irradiation, the composite exhibits outstanding nitrogen fixation performance, achieving an average NH₃ generation rate of 763.2 μmol g⁻¹ h⁻¹ and an apparent quantum efficiency of 2.63% at 420 nm. This performance stems from the multi-electron transfer capability of {Mo₁₆}, which acts as an “electron sponge” to accept photogenerated electrons from g<strong><img></strong>C₃N₅<strong><img></strong>COOH. Electron-rich Mo^V sites activate N₂ via d-π* orbital overlap, weakening the N<img>N bond. In the distal hydrogenation pathway, Mo^V directly donates electrons to the adsorbed N₂ molecule and is oxidized to Mo^VI. Subsequently, incoming photogenerated electrons rapidly reduce Mo^VI back to Mo^V, establishing a dynamic Mo^V/Mo^VI redox cycle. This cycle not only ensures a continuous multi-electron supply but also enables the self-regeneration of active sites. In situ FT-IR and density functional theory (DFT) calculations confirm a distal pathway with a reduced energy barrier for N₂ hydrogenation, highlighting the role of polyoxometalates in multi-electron photocatalysis and offering a design strategy for efficient nitrogen reduction catalysts.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"722 ","pages":"Article 140768"},"PeriodicalIF":9.7,"publicationDate":"2026-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148011425","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":"Magnetically driven thermoelectric-ROS cascade conversion in a scaffold for bone tumor and infection therapy","authors":"Xiuwen Gao ,&nbsp;Jinhui Tan ,&nbsp;Huixing Li ,&nbsp;Chong Lin ,&nbsp;Fangwei Qi ,&nbsp;Gao Pan ,&nbsp;Jun Zan ,&nbsp;Dongan Wang ,&nbsp;Yang Shuai ,&nbsp;Shuping Peng","doi":"10.1016/j.jcis.2026.140789","DOIUrl":"10.1016/j.jcis.2026.140789","url":null,"abstract":"<div><div>Thermoelectric materials enabled thermoelectric-reactive oxygen species (ROS) conversion under temperature gradients, offering a promising strategy for suppressing postoperative recurrence of bone tumors and associated bacterial infections. However, their clinical translation was hindered by the inability to achieve spatiotemporally controlled ROS release within bone tissue. To address this, a magnetothermal-thermoelectric heterojunction (Bi₂Te₃-MnFe₂O₄) was constructed by in situ growth of manganese ferrite (MnFe₂O₄) on bismuth telluride (Bi₂Te₃) nanosheets, and was then incorporated into poly-L-lactic acid (PLLA) scaffold using additive manufacturing. Under an alternating magnetic field, the magnetothermal effect of MnFe₂O₄ induced a localized temperature increase, which activated the thermoelectric effect of Bi₂Te₃. This process drove the separation of electron-hole pairs and catalyzed ROS generation to antitumor and antibacterial. Furthermore, the multivalent metal ions (Mn²⁺/Mn³⁺ and Fe²⁺/Fe³⁺) in MnFe₂O₄ mediated Fenton-like reactions, further enhancing ROS production and depleting glutathione via chemodynamic therapy. The magnetothermal heating also accelerated the kinetics of these processes, forming a synergistic therapeutic outcome. Experimental results demonstrated that the ROS produced by the scaffold induced mitochondrial dysfunction and apoptosis in tumor cells, and effectively killed bacteria by causing intracellular content leakage. This study integrated the magnetothermal, thermoelectric, and chemodynamic effects into a bone scaffold, providing an innovative strategy for comprehensive postoperative treatment of bone tumors.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"722 ","pages":"Article 140789"},"PeriodicalIF":9.7,"publicationDate":"2026-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148011426","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":"From spheres to bottles: carbon-source-directed general synthesis of hollow carbon superstructures via dual templates for solar thermochemical heat storage","authors":"Xiangyu Yang ,&nbsp;Shijie Li ,&nbsp;Hongyan Zhu ,&nbsp;Jianguo Zhao ,&nbsp;Yisong Yu","doi":"10.1016/j.jcis.2026.140775","DOIUrl":"10.1016/j.jcis.2026.140775","url":null,"abstract":"<div><div>Superstructures with hollow and anisotropic architectures have attracted significant attention due to their unique properties, but precisely controlling their internal cavities and external topographies remains a major challenge. Herein, a universal synthetic strategy is reported that enables precise control of the morphological characteristics of hollow carbon materials under the same conditions by solely adjusting the type of carbon source. The obtained hollow-bottle-shaped carbon superstructure (HBPC3) with a high surface area of 2634.5 m² g⁻¹served as the sorption medium for solar thermochemical heat storage (STHS) material for the first time. Owing to the distinctive cavernous framework with accessible interior and exterior surfaces, well-defined hierarchical interconnectivity across diverse scales of HBPC3, the optimized composite (ML2/HBPC3-50) delivers an exceptional energy density (ED) of 1843.4 kJ kg⁻¹ and a high moisture adsorption capacity of 0.53 g g⁻¹, outperforming most reported carbon-based STHS composites. Besides, it retains 94.9% of ED after 20 rounds of reciprocating motion while showing superb photothermal properties from the eminent thermal conductivity (1.09 W m⁻¹·K⁻¹), demonstrating its dependable STHS performance and promising heat transfer capability. This work not only opens up new avenues for the efficient and flexible fabrication of diverse anisotropic hollow carbon superstructures but also offers a forward-looking and feasible solution for STHS applications in buildings.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"721 ","pages":"Article 140775"},"PeriodicalIF":9.7,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147985941","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":"Engineering a sulfur/oxygen-modified bismuth catalyst via dynamic reconstruction of Bi2OS2 for efficient CO2 electroreduction to formate","authors":"Xinxin Zhang,&nbsp;Huixin Yan,&nbsp;Yihao Zhang,&nbsp;Xinkui Wang,&nbsp;Min Wang","doi":"10.1016/j.jcis.2026.140765","DOIUrl":"10.1016/j.jcis.2026.140765","url":null,"abstract":"<div><div>The electrochemical conversion of CO₂ to formate using renewable electricity is a promising carbon-neutral technology, yet designing catalysts that simultaneously achieve high activity, selectivity, and durability remains a challenge. In this work, we report a bismuth oxysulfide (Bi₂OS₂) catalyst with an intrinsic layered structure that consists of [BiS₂]⁻ layers and [Bi₂O₂]²⁺ layers. Beyond providing highly active Bi<img>O bonds, the stable [Bi₂O₂]²⁺ layer acts as an atomic anchor that effectively locks trace sulfur species in the final active sites. The experimental results show that Bi₂OS₂ achieves a formate Faradaic efficiency of 90.1% at −0.88 V vs. RHE and maintains stable operation for 100 h. In the flow cell, Bi₂OS₂ retains &gt;90% efficiency over a wide current range of −50 to −400 mA cm⁻². This work not only presents a high-performance catalyst but also introduces a precursor-guided strategy for constructing multi-anion stabilized active sites, offering a generalizable pathway to advanced CO₂ reduction electrocatalysts.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"721 ","pages":"Article 140765"},"PeriodicalIF":9.7,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147985696","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}