Journal of Colloid and Interface Science最新文献

{"title":"Substrate engineering-enhanced low-temperature NOx and CO removal by Co1Mn2Ox@CuO/copper mesh monolithic catalyst","authors":"Jianing Ma,&nbsp;Yanshan Gao,&nbsp;Rongrong Gui,&nbsp;Penghui Ren,&nbsp;Liyao Su,&nbsp;Jiaqi Wei,&nbsp;Qiang Wang","doi":"10.1016/j.jcis.2025.137936","DOIUrl":"10.1016/j.jcis.2025.137936","url":null,"abstract":"<div><div>This paper addresses the challenges of simultaneously removing nitrogen oxides (NO_x) and carbon monoxide (CO) from industrial flue gas at low temperatures. A highly efficient Co₁Mn₂O_x@CuO/copper mesh (CM) monolithic catalyst with higher oxygen vacancies was developed by growing Cu(OH)₂ nanorods <em>in-situ</em> on a copper mesh and subsequently synthesizing via a hydrothermal method. Experimental results show that the Co₁Mn₂O_x@CuO/CM catalyst can achieve 99.7 % NO_x conversion and 99.4 % CO conversion at 160 °C, with strong resistance to H₂O and SO₂ and outstanding long-term stability. Characterization results demonstrated that the excellent catalytic performance can be ascribed to the presence of abundant high-valent Co³⁺, Mn⁴⁺, and Cu²⁺ species, an increased number of reducible species, more acidic sites, and a higher concentration of oxygen vacancies. The interaction between ammonia-based selective catalytic reduction (NH₃-SCR) and CO oxidation reactions revealed that NH₃ primarily inhibited CO oxidation, whereas CO had no significant inhibitory effect on NH₃-SCR. Additionally, this study explored the factors contributing to the enhanced water resistance and the underlying mechanisms of both NH₃-SCR and CO oxidation reactions using <em>in-situ</em> diffuse reflectance infrared transform spectroscopy (<em>in-situ</em> DRIFTS). In terms of application, computational fluid dynamics (CFD) simulations demonstrated that the copper mesh-based monolithic catalyst provided better heat distribution, preventing partial deactivation and contributed to the improvement of catalytic activity. This research provides an efficient solution for industrial flue gas treatment and highlights its potential for environmental applications.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137936"},"PeriodicalIF":9.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123888","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":"Collaborative rapid reduction promoted synthesis of highly alloyed AuAg aerogels for selective CO2 reduction to CO","authors":"Jinmin Mo ,&nbsp;Dongyang Lou ,&nbsp;Jian Li ,&nbsp;Xingyu Tao ,&nbsp;Zhikun Zheng ,&nbsp;Wei Liu","doi":"10.1016/j.jcis.2025.137934","DOIUrl":"10.1016/j.jcis.2025.137934","url":null,"abstract":"<div><div>Developing electrocatalysts combining both high selectivity and durability toward CO₂ electrochemical reduction reaction (CO₂RR) to high value products is of great importance but challenging. The favorable influences of high alloying degree on electrocatalytic performance have been frequently revealed in various electrochemical energy conversions whereas rarely studied in CO₂RR. Herein, we propose a facile “one-pot galvanic replacement reaction-chemical reduction collaborative rapid reduction strategy” (GRR-CR) for the synthesis of highly alloyed Au₅₀Ag₅₀ aerogel (Au₅₀Ag₅₀-① AG) that exhibits high CO selectivity and high stability in CO₂RR. During the synthesis, galvanic replacement reaction (GRR) between HAuCl₄ and Ag and the reduction of metal ions by NaBH₄ proceed simultaneously. The large number of vacancies generated during GRR facilitate the mutual diffusion and alloying of Au and Ag atoms, leading to high alloying degree in Au₅₀Ag₅₀-① AG. Compared with the Au₅₀Ag₅₀ aerogel obtained by two-step gelation method (Au₅₀Ag₅₀-② AG) with certain micro-phase separation, the Au₅₀Ag₅₀-① AG showed much better CO₂RR performance. Specifically, at −0.7 V vs. RHE, the FE_CO of Au₅₀Ag₅₀-① AG achieve 97.8 %, much higher than 61.7 % for the Au₅₀Ag₅₀-② AG. Besides, the intrinsic activity J_{CO ECSA} of Au₅₀Ag₅₀-① AG is 4.3 times that of the Au₅₀Ag₅₀-② AG, and the Au₅₀Ag₅₀-① AG shows good durability with the FE_CO remains 87.3 % after 18 h. Theoretical simulation proved that the increase of alloying degree is conducive to reducing the energy barrier of CO₂-CO rate-determining step, promoting the formation of *COOH and *CO, and improves the overall performance of CO₂RR. This work sheds promising light on the design of CO₂RR electrocatalyst of both high selectivity and stability especially toward CO product.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137934"},"PeriodicalIF":9.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124005","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":"Photocatalytic peroxymonosulfate activation system based on Fe-MOF@BiVO4 for efficient organic pollutions removal: Spatially separated active sites","authors":"Yaping Zhang ,&nbsp;Yanan Zhao ,&nbsp;Yixin Qi ,&nbsp;Yanyan Lin ,&nbsp;Yuhang Cheng ,&nbsp;Mengmeng Sun ,&nbsp;Lei Wang","doi":"10.1016/j.jcis.2025.137917","DOIUrl":"10.1016/j.jcis.2025.137917","url":null,"abstract":"<div><div>Photogenerated holes have emerged as critical mediators for activating peroxymonosulfate (PMS) in the coupled photocatalytic PMS activation system, enabling novel dual-channel activation pathway. A tandem system based on Fe-MOF@BiVO₄ (Vis/PMS/Fe-MOF@BVO) with spatially separated active sites was constructed to form a dual-channel activation mechanism. The BiVO₄ (010) face provides the active sites for photogenerated electrons to drive the Fe³⁺/Fe²⁺ cycle and activate PMS, while the BiVO₄ (110) face serves as the active sites for photogenerated holes to activate PMS. Consequently, the Vis/PMS/Fe-MOF@BVO system achieved complete degradation of 10 mg/L BPA within 6 min, with a degradation rate constant (K_obs) of 0.74 min⁻¹. It also demonstrated high removal efficiency for various organic pollutants with excellent immunity to interference and reusability. This work provides a new insight into the coordinative mechanism for coupled photocatalysis and PMS activation system.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137917"},"PeriodicalIF":9.4,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108060","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":"Fabrication of high-performance 3D Biochar-Silica@BiOCl composites for photocatalytic degradation of tetracycline hydrochloride","authors":"Chi Fei ,&nbsp;Zaocheng Dong ,&nbsp;Houqi Zhou ,&nbsp;Ting Xu ,&nbsp;Keying Tang ,&nbsp;Yilong Fan ,&nbsp;Chunyu Chen ,&nbsp;Dianchun Ju ,&nbsp;Zuoqiao Zhu ,&nbsp;Han Ma ,&nbsp;Rui Mao","doi":"10.1016/j.jcis.2025.137920","DOIUrl":"10.1016/j.jcis.2025.137920","url":null,"abstract":"<div><div>A “waste-to-waste” strategy was adopted by pyrolyzing waste sugarcane bagasse to synthesize biomass-derived carbon (AC) and utilizing diatomite (DTE) as a substrate to construct a high-performance three-dimensional carbon–silica-based bismuth oxychloride (AC-DTE@BiOCl) photocatalyst. The three-dimensional structure effectively prevents the agglomeration of BiOCl while providing additional active sites. Experimental results demonstrate that AC-DTE@BiOCl efficiently degrades 96.2 % of tetracycline hydrochloride (TCH) within 90 min, exhibiting excellent photocatalytic performance. Infrared spectroscopy analysis reveals that the symmetric stretching vibration peak of Si-O (804 cm⁻¹) weakens and slightly broadens, while no characteristic peaks of TCH are detected, indicating its complete degradation. Density functional theory (DFT) calculations indicate that the carbonyl site in the TCH molecule exhibits the highest negative electrostatic potential, and O2, O4, O7, N1, O6, and O3 atoms are identified as the primary active sites for radical attack. Furthermore, the photocatalytic degradation of TCH mainly proceeds through hydroxylation, deamination, and ring-opening pathways. These findings provide valuable insights into the rational design and development of high-efficiency and stable photocatalytic materials for environmental remediation applications.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137920"},"PeriodicalIF":9.4,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108058","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":"Harnessing earth-abundant clay mineral for sustainable catalysis: Electronic tailoring of AuPd bimetallics enables efficient alkali-free 5-hydroxymethylfurfural upgrading","authors":"Hongke Li ,&nbsp;Yunlei Zhang ,&nbsp;Yiran Liu ,&nbsp;Qinghua Xia ,&nbsp;Maobin Wei ,&nbsp;Wen Guan ,&nbsp;Fang Wang ,&nbsp;Yao Chen","doi":"10.1016/j.jcis.2025.137922","DOIUrl":"10.1016/j.jcis.2025.137922","url":null,"abstract":"<div><div>Production of high value-added 2,5-furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF) is a promising alternative to petroleum derivate of terephthalic acid. However, it is still challenging to construct efficient and easily available catalysts suitable for green production process of FDCA under base-free conditions. Herein, a natural clay mineral sepiolite supported AuPd bimetallic catalysts with varied bimetallic ratio were developed and employed for aerobic oxidation of HMF to produce FDCA under alkali-free hydrothermal conditions. Au_1.2Pd₁/sepiolite catalyst showed the best catalytic performance with 100% HMF conversion and 98.4% FDCA yield. The key to excellent catalytic performance benefited from synergistic effect between hydroxy-rich surface property of natural sepiolite support and the positive role of AuPd bimetallic sites in the tandem oxidation of aldehyde and hydroxyl groups. The localized electron transfer between AuPd nanoparticles and carriers was investigated by density functional theory calculations. The bimetal promoted the formation of electron-rich interfaces, modulated the local electron redistribution at the interface, and enhanced the adsorption and activation of O₂, HMF, and the reacted formed intermediates. This work presents a promising strategy for green synthesis of FDCA as well as offers a facile way for the high-value usage of nanofibrous clay mineral.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137922"},"PeriodicalIF":9.4,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108063","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 SmPO4-integrated N, P-doped porous carbon nanosheets for enhanced oxygen reduction in zinc-air batteries","authors":"Zhijuan Li ,&nbsp;Minghao Hou ,&nbsp;Minnan Chen ,&nbsp;Yuxin Deng ,&nbsp;Chuhan Ma ,&nbsp;Xinlong Wang ,&nbsp;Haibao Duan ,&nbsp;Tongfei Li ,&nbsp;Dongmei Sun ,&nbsp;Yawen Tang","doi":"10.1016/j.jcis.2025.137921","DOIUrl":"10.1016/j.jcis.2025.137921","url":null,"abstract":"<div><div>Developing cost-effective and high-performance oxygen reduction reaction (ORR) catalysts is essential for advancing rechargeable zinc-air batteries (ZABs). Herein, we report a rationally designed catalyst composed of samarium phosphate nanoparticles uniformly embedded in nitrogen and phosphorus co-doped porous carbon nanosheets (SmPO₄@PN/C). The synergistic integration of SmPO₄ and N, P co-doped carbon not only enhances the electronic conductivity and surface defect density but also ensures strong interfacial interactions through robust P<img>O<img>Sm covalent bonding, effectively preventing Sm³⁺ leaching. The optimized SmPO₄@PN/C catalyst exhibits outstanding ORR activity with a high onset potential of 1.05 V and a half-wave potential of 0.86 V in alkaline media, along with remarkable long-term electrochemical stability and structural robustness. Even after 48000 s of continuous operation, the catalyst maintains over 87 % of its initial current response. Density functional theory (DFT) calculations demonstrate favorable ORR energetics, supporting the observed catalytic activity and providing mechanistic insights. When employed as the air cathode in ZABs, the SmPO₄@PN/C + RuO₂ hybrid delivers a high peak power density of 133 mW·cm⁻² and maintains superior cycling durability over extended operation, surpassing commercial Pt/C + RuO₂-based systems. This work provides a scalable and efficient strategy for designing rare-earth phosphate-carbon hybrid catalysts and offers a promising pathway toward the development of next-generation metal-air batteries.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137921"},"PeriodicalIF":9.4,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108193","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":"Cr2O3-x artificial interfacial layer featuring abundant nucleation sites: Facilitating rapid Zn2+ transport and highly reversible Zn anode","authors":"Zixiao Nie ,&nbsp;Long Wang ,&nbsp;Jialei Li,&nbsp;Zhuo Li,&nbsp;Hao Xu,&nbsp;Yonghong Cheng,&nbsp;Yu Chen,&nbsp;Bing Xiao,&nbsp;Xin Xu","doi":"10.1016/j.jcis.2025.137918","DOIUrl":"10.1016/j.jcis.2025.137918","url":null,"abstract":"<div><div>Interfacial engineering offers a promising solution to zinc anode instability, yet most studies focus solely on suppressing side reactions with water, overlooking the critical role of fast zinc ion kinetics. This work investigates the Cr₂O_3-<em>_x</em> artificial interface layer, demonstrating its dual benefits of electrostatic shielding and enhanced Zn²⁺ transport kinetics. The Cr₂O_3-<em>_x</em> layer exhibits excellent mechanical stability and hydrophilicity, with its negatively charged surface effectively repelling anions like SO₄²⁻ and OH⁻ to suppress side reactions. Moreover, the highly active Cr₂O_3-<em>_x</em> layer accelerates Zn²⁺ migration, reduces nucleation energy barriers, and promotes uniform zinc deposition by facilitating Zn²⁺ detachment from solvated structures. As a result, the Cr₂O_3-<em>_x</em>@Zn anode achieves exceptional cycling stability and remarkable reversibility, with symmetric batteries enduring over 1,800 h at 5 mA cm⁻². When paired with NH₄V₄O₁₀, it also demonstrates long cycle life and superior rate performance. This work sheds new light on the development of stable, high-performance zinc anodes.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137918"},"PeriodicalIF":9.4,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108057","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":"Introduction of cobalt vacancies in nickel-cobalt bimetallic oxide hollow multi-shell microspheres for peroxymonosulfate activation: Synergistic interaction of high-valent cobalt-oxygen species with singlet oxygen","authors":"Teng Li ,&nbsp;Yuan Pan ,&nbsp;Xiansheng Zhang ,&nbsp;Shanqing Tang ,&nbsp;Xinyi Huang ,&nbsp;Binbin Shao ,&nbsp;Ting Wu ,&nbsp;Sheng Liu ,&nbsp;Yunze Wang ,&nbsp;Xiaofei Xue ,&nbsp;Zhifeng Liu","doi":"10.1016/j.jcis.2025.137914","DOIUrl":"10.1016/j.jcis.2025.137914","url":null,"abstract":"<div><div>The strategic engineering of spinel-derived Fenton-like catalysts for persulfate activation via non-radical pathways presents significant potential for advanced water remediation technologies. In this paper, a hollow multi-shell (HMs) catalyst with cationic cobalt vacancy (NiCo^vac/HMs) was designed by combining the sequential template method and strong alkali etching method, and was used for peroxymonosulfate (PMS) activation. The NiCo^vac/HMs/PMS system achieved 95.46 % tetracycline hydrochloride (TCH) removal through dominant ¹O₂ and high-valent cobalt-oxo species (Co(IV)=O) species, contrasting conventional radical-based mechanisms. The synergistic effect between surface Co and Ni improved the electron transport efficiency. In addition, the introduction of Co vacancies optimized the surface electronic structure of the catalyst, which facilitated the adsorption of PMS and the generation of reactive oxygen species (ROSs). The experimental results showed that the NiCo^vac/HMs/PMS system also resisted the interference of humic acid (HA), pH change and inorganic anions, and exhibited good stability and catalytic properties, which has great potential for development in the field of water treatment. This work provided new perspectives for the rational design of spinel catalysts and their use for the activation of PMS, which could contribute to the effective remediation of organic matter pollution in real water bodies.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137914"},"PeriodicalIF":9.4,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108062","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":"Regulating aggregation of an intrinsically disordered chaperone-like casein","authors":"Jaspreet Kaur,&nbsp;Mily Bhattacharya","doi":"10.1016/j.jcis.2025.137916","DOIUrl":"10.1016/j.jcis.2025.137916","url":null,"abstract":"<div><div>Protein aggregation involving the conversion of soluble protein monomers into insoluble aggregates is prevalent in human diseases, food processing, food formulations, biotechnology-based therapeutics, etc. Molecular chaperones are typically globular proteins that regulate protein folding and aggregation. However, a unique chaperone-like milk protein namely, β-casein, is intrinsically disordered and prone to aggregation under physiological conditions. To regulate protein aggregation, there is a pressing need to devise strategic interventions that require a detailed understanding of the protein conformational changes during self-association. Here, we show that sodium chloride (NaCl) can modulate calcium ions (Ca²⁺)-induced spontaneous aggregation of β-casein under physiological conditions. Using fluorescence and Raman spectroscopy coupled with light scattering and transmission electron microscopy, we delineate the structural attributes of β-casein during Ca²⁺-mediated self-association. Our findings reveal that the binding of divalent Ca²⁺ to five phosphorylated serine residues (calcium phosphate binding-short linear sequence motif; CaP-SLiM), located within the <em>N</em>-terminal-domain of β-casein, is an obligatory prerequisite. This binding event subsequently triggers the formation of inter-casein bridges that facilitate multivalent interactions between the hydrophilic, disordered β-caseins, driving the self-assembly wherein hydrophobic interactions are insignificant compared to β-casein-CaCl₂ interactions. Further, the Ca²⁺-induced β-casein aggregation is accompanied by a disorder-to-order transition resulting in non-amyloid, spherical aggregates. We also demonstrate that NaCl influences the aggregation propensity of β-casein by electrostatically screening the polypeptide and leads to the formation of aggregation-incompetent oligomers by abolishing the binding of Ca²⁺ to β-casein and the subsequent formation of inter-casein linkages, thus, affirming the pivotal role of CaP-SLiMs and multivalency during β-casein aggregation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137916"},"PeriodicalIF":9.4,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098826","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":"Mechanistic insights into chemical bonded BaTiO3/MoS2 dual piezoelectric heterojunction for Robust Piezo-Photocatalytic performance","authors":"Gaiying Han ,&nbsp;Pei Wang ,&nbsp;Xinxin Zhang ,&nbsp;Zhaoyang Wang ,&nbsp;Haitao Yu ,&nbsp;Zhenzi Li ,&nbsp;Ying Xie ,&nbsp;Wei Zhou","doi":"10.1016/j.jcis.2025.137919","DOIUrl":"10.1016/j.jcis.2025.137919","url":null,"abstract":"<div><div>To solve the limited active sites, high carrier recombination rate, and the photo-corrosion issues of layered MoS₂, a novel chemically bonded BaTiO₃/MoS₂ (BM-x, x  = 2, 5, 10, and 20) dual piezoelectric heterojunction was synthesized. Density functional theory (DFT) calculations combined with experimental characterizations revealed that chemical bonds are formed between the 3d orbitals of Ti in BaTiO₃ and the 3p orbitals of S in MoS₂. These strong interactions enable BaTiO₃ to be firmly anchored on the surface of 2D MoS₂ sheets and thus enhance the structural stability of the catalyst. Furthermore, the intimate interfacial contact facilitates electron transfer from BaTiO₃ to MoS₂, while the formed type-II heterostructure induces a built-in electric field that significantly improves the generation and separation of photogenerated charge carriers. Under the synergistic effect of ultrasonic vibration and light irradiation, the valence band maximum (VBM) and conduction band minimum (CBM) of the two phases become tilted, resulting in a significant increase in the planar potential difference between them and therefore enhancing the built-in electric field. Thus, the BM-10 sample achieves a high degradation rate and an excellent Cr(VI) removal efficiency. These findings provide new insights into the structural regulation and the optimization of catalytic activity for MoS₂-based piezoelectric photocatalysts.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137919"},"PeriodicalIF":9.4,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123901","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}