Journal of Colloid and Interface Science最新文献

{"title":"Asymmetrically coordinated cobalt atom on oxygen-doped carbon nitride for enhanced peroxymonosulfate activation and pollutants degradation","authors":"Xiaojing Wang ,&nbsp;Juan Liu ,&nbsp;Yu Zhang ,&nbsp;Haifeng Lin ,&nbsp;Jun Xing ,&nbsp;Lei Wang ,&nbsp;Jixiang Xu","doi":"10.1016/j.jcis.2025.138474","DOIUrl":"10.1016/j.jcis.2025.138474","url":null,"abstract":"<div><div>Targeted regulation of metal-atom configurations is an effective strategy to modulate electronic structure and enhance peroxymonosulfate (PMS) activation. In this study, cobalt atom with an asymmetric coordination of five nitrogen atoms and one oxygen atom (Co-N5O1) anchored on oxygen-doped carbon nitride (OCN) surfaces was synthesized to activate PMS. Experimental and computational results revealed that the asymmetric N, O coordination of Co atoms not only facilitated PMS adsorption and activation, thereby generating more sulfate (SO₄^•–), superoxide radical (O₂^•–), and singlet oxygen (¹O₂) radicals; but also enabled dissolved oxygen to participate in radical generation and promoted the electron transfer from contaminants to the surface-bound PMS complexes. Under the main actions of SO₄^•–, ¹O₂, and electron transfer, the Co-N5O1/OCN + PMS system demonstrated remarkable degradation efficiency, achieving nearly 100% degradation for both electron-donating (ciprofloxacin, bisphenol A, sulfamethoxazole, 4-chlorophenol, tetracycline) and electron-withdrawing (p-nitrophenol, p-nitrobenzoic acid, metronidazole) pollutants at a concentration of 10 mg L⁻¹. In a continuous-flow operation, 90% of ciprofloxacin was removed within 150 min (100 mL solution) with minimal metal leaching (&lt; 0.3 mg L⁻¹). This study elucidates the critical role of metal atom coordination in PMS activation and offers a promising catalyst for various types of contaminants degradation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138474"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656845","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":"Multifunctional “liquid-solid” interconvertible electrolytes for aqueous zinc-ion batteries with dendrite suppression and impact resistance capabilities","authors":"Tianqi Jia,&nbsp;Lu Wei,&nbsp;Zitong Zhu,&nbsp;Xin Guo","doi":"10.1016/j.jcis.2025.138469","DOIUrl":"10.1016/j.jcis.2025.138469","url":null,"abstract":"<div><div>Short-circuits induced by Zn dendrite growth and external impacts can lead to the failure of aqueous zinc-ion batteries (AZIBs). To enhance the mechanical safety of aqueous batteries, most of the work focuses on strengthening the external packaging, while comparatively limited attention has been directed toward the properties and optimization of the internal electrolyte. Herein, a smart multifunctional fluid [polymethyl methacrylate dispersed in Zn(OTf)₂ aqueous solution] is developed as both a highly ionic conductive electrolyte and an intrinsic mechanical protector for AZIBs. This electrolyte exhibits dynamic “liquid-solid” interconversion due to its non-Newtonian fluid properties. Under normal circumstances, the fluid's high ionic conductivity (25.2 mS cm⁻¹) supports efficient electrochemical kinetics and interfacial compatibility. Upon high current rates or sudden external impacts, the electrolyte stiffens to suppress Zn dendrite growth and prevent internal short circuits. An AZIB (Zn||V₆O₁₃) using this electrolyte achieves a specific capacity of 353.6 mAh g⁻¹ at 0.1 A g⁻¹, good rate capability (206.9 mAh g⁻¹ at 5 A g⁻¹), and excellent cyclability with 85 % capacity retention after 3000 cycles at 5 A g⁻¹. Additionally, the electrolyte's shear-thickening effect ensures stable operation of the cell under impacts. This work highlights the dual functionality of the electrolyte in enhancing both electrochemical performance and mechanical safety in AZIBs.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138469"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656844","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":"High-performance zinc-ion storage enabled by layer-structured hydrated ruthenium oxide cathode","authors":"Xu Li ,&nbsp;Yang Li ,&nbsp;Liubing Dong","doi":"10.1016/j.jcis.2025.138449","DOIUrl":"10.1016/j.jcis.2025.138449","url":null,"abstract":"<div><div>Transition metal oxides (TMOs) are typical host materials for Zn²⁺ storage in aqueous zinc-based energy storage systems, whereas the strong electrostatic interaction between Zn²⁺ and TMO hosts causes severe lattice distortion and structural instability of the TMOs, leading to poor Zn²⁺-storage performance. Herein, we report advanced TMO materials featured by weak lattice distortion and low-barrier ion-transport channels to realize high-performance Zn²⁺ storage. Hydrated ruthenium oxide materials are synthesized, whose [RuO₆] octahedra present weak intrinsic Jahn-Teller distortion with very slight compression/elongation of Ru<img>O bonds during Zn²⁺ storage, and meanwhile, the interlayer water molecules not only dampen the charge transfer between inserted Zn²⁺ and the lattice oxygen to weaken the electrostatic interaction between them but also induce Zn²⁺ moving through low-energy-barrier integral rotation of octahedral [Zn(H₂O)₆]²⁺ cluster to decrease Zn²⁺ diffusion resistance in the nanochannels of the cathode material, synergistically enabling high-performance Zn²⁺ storage. The cathode materials present a large capacity of 259 mAh/g, good rate performance and an exceptional cycling stability with an average capacity decay rate of only 0.00266 % per cycle over 10,000 cycles, remarkably superior to current TMO cathode materials. This work provides new inspiration for the design of TMO materials for high-performance zinc-based electrochemical energy storage.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138449"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656950","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":"Particle capturing via droplet impact on superhydrophobic mesh","authors":"Prateekkumar Kotegar ,&nbsp;Rutvik Lathia ,&nbsp;Bheema Sankar Reddy ,&nbsp;Prosenjit Sen ,&nbsp;Monojit Chakraborty ,&nbsp;Suman Chakraborty","doi":"10.1016/j.jcis.2025.138464","DOIUrl":"10.1016/j.jcis.2025.138464","url":null,"abstract":"<div><h3>Hypothesis</h3><div>Open-chip droplet-based microreactors are continually finding newer applications, spanning areas such as drug discovery and materials exploration through combinatorial chemistry. The incorporation of small quantities of particulate inclusions into these droplets holds significant potential for enhancing their functionalities, but remains challenged due to the inherent lack of precise control. We hypothesize that this limitation can be addressed by leveraging the jet formed during the controlled impact of a falling droplet on a superhydrophobic mesh, enabling precise capture of particulates from a strategically positioned bed beneath the mesh.</div></div><div><h3>Experiments</h3><div>Controlled experiments were performed to investigate the droplet impingement on a superhydrophobic mesh. High-speed imaging was employed to analyze the dynamics of the resulting jet and its interaction with the particle housing beneath the mesh, revealing the intricacies of the particle capture process. Specific strategies were implemented to tune the droplet energy and assess the impact of the distance between the mesh and the particle housing. The effects of particulate properties and medium rheology were examined through extensive experiments using dissolvable dye particles, insoluble glass beads, highly viscous liquids, and low surface tension liquids.</div></div><div><h3>Findings</h3><div>Our results unveiled highly selective configurations that enabled tunable capture of microparticles across a wide range of volumetric compositions, spanning over three orders of magnitude in the particle numbers in a given droplet volume (∼10 to ∼2000). These also demonstrated the successful pickup of nanoscale dye particles from trace amounts (sub-microgram) of samples, which is otherwise challenging to achieve. The versatility of the method was further exemplified by its ability to capture particles in a highly viscous medium (58 mPa·s) and also low surface tension (33.67 mN/m). These findings are expected to drive advancements in a wide variety of applications, ranging from biomedical analysis to the synthesis of specialized materials for drug discovery, where precise capturing and encapsulation of particles of a wide variety of sizes and concentrations are imperative.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138464"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665846","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":"Lignin-derived porous carbons via nitrogen-enhanced activation for efficient supercapacitors","authors":"Minghao Yi ,&nbsp;Vitaliy Budarin ,&nbsp;Hangbo Yue ,&nbsp;Guillermo Tajuelo-Castilla ,&nbsp;Enrique Morales ,&nbsp;Gary J. Ellis ,&nbsp;Peter S. Shuttleworth","doi":"10.1016/j.jcis.2025.138456","DOIUrl":"10.1016/j.jcis.2025.138456","url":null,"abstract":"<div><div>Lignin, an abundant industrial by-product, has gained attention as a sustainable precursor for porous carbon electrodes in supercapacitors due to its intrinsic aromaticity and high carbon content. While nitrogen doping is known to enhance electrochemical properties, its impact on lignin char activation mechanisms and porosity development remains underexplored. This study reports a novel, microwave-assisted nitrogen doping strategy using ethanolamine, followed by optimised chemical activation leading to the formation of highly porous carbons with enhanced charge storage capabilities. The activated carbon synthesised at an optimal NaOH-to-char weight ratio of 3:1 exhibits a uniformly distributed pore structure, as confirmed by scanning electron microscopy (SEM), along with a high specific surface area of 2749 m² g⁻¹ and a pore volume of 1.48 cm³ g⁻¹. Elemental Analysis, Raman spectroscopy, and X-ray Photoelectron Spectroscopy provides information on the thermal transformation of nitrogen species upon pyrolysis, and their differential roles in the activation process. Partial least squares (PLS) analysis further confirms that nitrogen functionality loss and activator dosage both govern porosity development. Electrochemical testing using a 2 M H₂SO₄ electrolyte demonstrates a high specific capacitance of 292 F g⁻¹ at 0.1 A g⁻¹, a remarkable capacitance retention of 90 % after 4000 cycles at 2 A g⁻¹, and an energy density of 9.2 Wh kg⁻¹ at a power density of 1.1 kW kg⁻¹. These results further establish nitrogen-enhanced NaOH activation as an effective route for tailoring porosity and enhancing electrochemical performance, offering a sustainable pathway for the revalorization of lignin into high-performance supercapacitor electrode materials.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138456"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662973","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":"Langmuir-Blodgett nanoarchitectonics for photoinduced redox-isomeric transformations in lanthanide bis-phthalocyaninates at air/water and air/solid interfaces","authors":"A.V. Arakcheev ,&nbsp;O.Yu. Grafov ,&nbsp;A.V. Naumkin ,&nbsp;O.A. Raitman ,&nbsp;A.G. Martynov ,&nbsp;Yu.G. Gorbunova ,&nbsp;S.L. Selektor","doi":"10.1016/j.jcis.2025.138470","DOIUrl":"10.1016/j.jcis.2025.138470","url":null,"abstract":"<div><div>In this work, new photoinduced reversible molecular switches in planar supramolecular systems based on crown-substituted samarium and europium bis-phthalocyaninates have been discovered and investigated. The possibility to control the redox-isomeric equilibrium, established in Langmuir monolayers of the studied compounds at the air/water interface, by UV-irradiation and red light has been shown for the first time. In this work the fact of redox isomerization is experimentally detected using UV–Vis absorption and X-ray photoelectron spectroscopy. It is found that UV-irradiation of the monolayer induces the redox isomerization (intramolecular electron transfer) [Ln²⁺L^•-₂]⁰ → [L^•-Ln³⁺L²⁻]⁰ accompanied by oxidation of the metal center and reduction of the ligand. The reverse process [L^•-Ln³⁺L²⁻]⁰ → [Ln²⁺L^•-₂]⁰ occurs spontaneously in the dark but can be promoted by irradiation into the Q-band region. The possibility to implement analogous switching in Langmuir-Blodgett films (LBF) on solid substrates is also demonstrated. Moreover, during such photoisomerization in LBFs on the electrode surface, changes in the stationary electrochemical potential and in the surface plasmon resonance angle were registered, in addition to spectral switching. The above findings make it possible to state the discovery of a new class of photochromic compounds whose colour change is associated with photoinduced valence tautomerism.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138470"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663076","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":"Fluorine-guided synthesis of copper nickel compounds with 2-methylimidazole and temperature control for battery supercapacitor hybrids","authors":"Tsung-Rong Kuo ,&nbsp;Yi-Chun Cheng ,&nbsp;Dong-Ching Chieh ,&nbsp;Chutima Kongvarhodom ,&nbsp;Sibidou Yougbaré ,&nbsp;Muhammad Saukani ,&nbsp;Hung-Ming Chen ,&nbsp;Lu-Yin Lin","doi":"10.1016/j.jcis.2025.138463","DOIUrl":"10.1016/j.jcis.2025.138463","url":null,"abstract":"<div><div>Nickel-based compounds are widely studied for battery supercapacitor hybrids (BSHs) due to their redox activity and high theoretical capacitance, but their limited conductivity and structural instability remain challenges. Incorporating copper into nickel-based systems is a practical strategy to enhance electronic conductivity and influence phase formation. The use of fluorine-containing structure-directing agents (SDAs) such as NH₄BF₄ and NH₄HF₂ can regulate crystal growth, interlayer distance, and surface properties through the formation of fluorine complexes. In addition, 2-methylimidazole is introduced to coordinate with metal ions during the initial solution process, which helps stabilize precursor complexes and support uniform nucleation. These chemical agents collectively guide the formation of a porous nanostructure with tailored phase composition. In this work, nickel copper compounds are synthesized by a solution process using NH₄BF₄, NH₄HF₂ and 2-methylimidazole, followed by oxidation at varied temperatures. The optimal Cu-Ni compound synthesized at 300 °C (CuNi300) exhibits a multiphase composition of hydroxides and oxides with favorable morphology, delivering a specific capacitance (C_F) of 1026.0 F/g at 10 mV/s. A BSH assembled with CuNi300 and carbon electrodes achieves a maximum energy density of 82.95 Wh/kg at 350 W/kg, and a C_F retention of 93.2% and Coulombic efficiency of 89.4% after 10,000 cycles.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138463"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656842","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":"Co-NC/Nb2O5 heterostructure enable the synergistic fast sulfur redox kinetics and uniform lithium deposition for advanced lithium sulfur batteries","authors":"Xiaoli Peng ,&nbsp;Long Yuan ,&nbsp;Shilan Li ,&nbsp;Shengdong Jing ,&nbsp;Yaozhu Tian ,&nbsp;Zhu Luo ,&nbsp;Yufei Zhang ,&nbsp;Haosen Fan","doi":"10.1016/j.jcis.2025.138455","DOIUrl":"10.1016/j.jcis.2025.138455","url":null,"abstract":"<div><div>Lithium‑sulfur batteries (LSBs) have attracted much attention due to their high theoretical energy density (2600 Wh kg⁻¹) and low cost of sulfur cathodes. However, their practical application is hindered by the significant polysulfide shuttle effect and sluggish redox kinetics. To address these challenges, a Co-NC/Nb₂O₅ heterostructure was successfully prepared through high-temperature annealing of a ZIF-67 precursor followed by hydrothermal growth of Nb₂O₅ nanocrystals on the surface of <em>Co</em>-embedded and N-doped carbon polyhedrons (Co-NC). The unique structure features a hierarchical conductive framework with uniformly dispersed Nb₂O₅ nanoparticles and defect-rich carbon matrix, which synergistically enhances sulfur utilization and ion diffusion. Numerous dangling bonds and defective sites exist on the Nb₂O₅ surfaces, and its Lewis acidic site (Nb⁵⁺) can inhibit the solvation and shuttling of LiPSs through strong chemical interactions with the S atoms of polysulfides via Nb-O-S bonds. The catalytic and adsorption mechanisms were explained by density functional theory (DFT) calculations and experimental results. Consequently, LSBs cells equipped with Co-NC/Nb₂O₅ modified separators demonstrated exceptional electrochemical performance with a rate capability that provides a reversible capacity of 761.8 mAh g⁻¹ at 3 °C. The composite of MOF-derived hollow carbon polyhedra decorated with Nb₂O₅ nanoparticles ensured fast electron transfer, achieving a reversible capacity of 731.4 mAh g⁻¹ after 500 cycles at 1C and 501.6 mAh g⁻¹ after 1000 long cycles at 2C, with a capacity decay rate of only 0.03 % per cycle. Excellent electrochemical performance was maintained with a high sulfur loading cycling performance of 5 mg cm⁻² at a low electrolyte/sulfur condition of 7 μL mg⁻¹. This work provides new insights into the development of high energy density LSBs and the advancement of next generation energy storage systems through precise electronic structure design at the heterojunction interface.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138455"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656843","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":"Excellent catalytic activity of in-situ formed Ti3C2 nanoparticles for boosting hydrogen release from light metal hydride","authors":"Meng Zhang,&nbsp;Zhijie Cao,&nbsp;Haihua Zhang,&nbsp;Ling Ma,&nbsp;Xiaomeng Wang","doi":"10.1016/j.jcis.2025.138438","DOIUrl":"10.1016/j.jcis.2025.138438","url":null,"abstract":"<div><div>Lithium aluminum hydride (LiAlH₄) exhibits significant potential as a solid-state hydrogen storage medium. However, its practical implementation is restricted by high activation barriers, kinetic limitations, and irreversibility. In this work, a novel solvent-induced phase separation strategy was employed to synthesize TiC@C with excellent catalytic activity, aiming to improve the dehydrogenation performance of LiAlH₄. The addition of 5 wt% TiC@C remarkably reduces the initial hydrogen desorption temperature of LiAlH₄ by 124 °C, decreasing from 164 °C to 40 °C. The composite system achieves rapid hydrogen release with 4.5 wt% H₂ liberated within 2 h at 90 °C and 6.2 wt% H₂ desorbed in merely 20 min at 150 °C. Kinetic analysis indicates significantly reduced activation energies for both dehydrogenation stages, decreasing from 136.5 kJ/mol to 71.6 kJ/mol for the first stage and from 123.6 kJ/mol to 94.2 kJ/mol for the second stage. Multiscale characterizations combining kinetic analysis reveal that the exceptional performance originates from ball milling-induced in-situ formation of Ti₃C₂ phase, which generates numerous favorable nucleation sites for dehydrogenation products. These interfacial structures create abundant heterointerfaces with LiAlH₄. Density functional theory (DFT) calculations reveal that, in different structural states, TiC@C facilitates Al<img>H bond elongation through orbital dehybridization and interfacial electron transfer via Al → Ti charge polarization, thereby significantly lowering the Al<img>H bond dissociation energy barrier in the composite system. These effects change the two-step dehydrogenation models of LiAlH₄, making it easier for hydrogen release and uptake. This interfacial catalysis paradigm establishes new fundamental principles for overcoming kinetic limitations in metal hydride-based hydrogen storage systems through targeted electronic and crystallographic engineering.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138438"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663075","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":"Boosting photocatalytic benzylic C(sp3)-H bonds oxidation via an embedded S-scheme BA2PbBr4/MoO3 heterojunction","authors":"Mengqing Li ,&nbsp;Xin Yang ,&nbsp;Jiayu Yi ,&nbsp;Lijuan Shen ,&nbsp;Xuhui Yang ,&nbsp;Bo Weng ,&nbsp;Min-Quan Yang","doi":"10.1016/j.jcis.2025.138450","DOIUrl":"10.1016/j.jcis.2025.138450","url":null,"abstract":"<div><div>The selective oxidation of benzylic C(sp³)-H bonds to aldehydes/ketones is pivotal in production of value-added chemicals, but remains challenging to proceed under moderate conditions with high production rate. Semiconductor photocatalysis offers a sustainable alternative by utilizing solar energy and O₂, yet catalysts face limitations due to fast charge recombination and insufficient surface reactivity. Here, we develop a novel S-scheme heterojunction of BA₂PbBr₄/MoO₃ by integrating MoO₃ nanobelts into BA₂PbBr₄ nanoplates to form an embedded architecture. The design forms a tight and large interfacial contact and establishes a built-in electric field (BEF) at interfaces, providing sufficient charge transfer channels to direct charge separation while preserving strong redox potentials. Importantly, MoO₃ enhances toluene adsorption, enriching reactants on the catalyst surface and accelerating mass/charge transfer. The optimal BA₂PbBr₄/MoO₃ heterojunction achieves 5560 μmol g⁻¹ h⁻¹ and 880 μmol g⁻¹ h⁻¹ for benzaldehyde and benzyl alcohol production, respectively, which are 2.5-fold higher than pure BA₂PbBr₄. This study highlights S-scheme heterojunction engineering as a strategic approach to enhance photocatalytic performance by synergizing charge dynamics and surface reactivity, offering a green pathway for selective C<img>H bond functionalization in chemical synthesis.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138450"},"PeriodicalIF":9.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665848","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}