Chen Chen, Jianhao Qiu, Guanglu Xia, Lu Zhang, Yixin Li, Biyao Fang, Meng Liu, Jianfeng Yao
{"title":"Cu-doped hollow tubular ZnIn2S4 using MIL-68-NH2 as templates for efficient photocatalytic synthesis of H2O2 in ambient air and pure water","authors":"Chen Chen, Jianhao Qiu, Guanglu Xia, Lu Zhang, Yixin Li, Biyao Fang, Meng Liu, Jianfeng Yao","doi":"10.1016/j.jcis.2025.138562","DOIUrl":"10.1016/j.jcis.2025.138562","url":null,"abstract":"<div><div>Utilizing metal–organic frameworks as templates to synthesize photocatalysts has garnered increasing attention thanks to their substantial advantages. In this study, Cu-doped ZnIn<sub>2</sub>S<sub>4</sub> with hollow tubular structures was ingeniously synthesized using MIL-68-NH<sub>2</sub> as a template for photocatalytic H<sub>2</sub>O<sub>2</sub> production in ambient air and pure water under visible light. The hollow tubular structures promote light penetration and reflection, furnish substantial accessible reactive sites and accelerate the diffusion of reactants and products. Cu doping notably varies the band configuration of ZnIn<sub>2</sub>S<sub>4</sub>, resulting in a narrower bandgap and a lower conduction band potential. Their cooperative effects enable a respectable H<sub>2</sub>O<sub>2</sub> production from oxygen reduction reactions. The hollow tubular ZnIn<sub>2</sub>S<sub>4</sub> and corresponding Cu-doped counterpart achieved high H<sub>2</sub>O<sub>2</sub> yields of 1153 and 1616 μmol·L<sup>−1</sup>, respectively, 3.6 and 5.1 times-increase compared with that of ordinary ZnIn<sub>2</sub>S<sub>4</sub> prepared without MIL-68-NH<sub>2</sub>. This work would provide a new perspective on ZnIn<sub>2</sub>S<sub>4</sub>-based photocatalysts and provoke the study on the green synthesis of H<sub>2</sub>O<sub>2</sub>.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138562"},"PeriodicalIF":9.7,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739027","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}
Yidi Wang , Yang Wang , Ziqi Wang , Liangfeng Luo , Benjamin Tawiah , Chang Liu , Jiachuan Hua , Yang Ming , John H. Xin , Wai-Yeung Wong , Bin Fei
{"title":"Water-stable MAPbBr3@PbBrOH QDs confined by metal–organic framework for photodegradation of wastewater","authors":"Yidi Wang , Yang Wang , Ziqi Wang , Liangfeng Luo , Benjamin Tawiah , Chang Liu , Jiachuan Hua , Yang Ming , John H. Xin , Wai-Yeung Wong , Bin Fei","doi":"10.1016/j.jcis.2025.138581","DOIUrl":"10.1016/j.jcis.2025.138581","url":null,"abstract":"<div><div>While the metal halide perovskite materials are emerging as potentially promising photocatalysts, they still suffer from the intrinsic instability, seriously hampering their further practical applications. In this study, a perovskite-based composite with a sandwich structure is first established to realize the encapsulation of individual octylamine-capped MAPbBr<sub>3</sub> (OM-PE) quantum dots (QDs), and the Zeolitic Imidazolate Framework-67 (ZIF-67) isolates the individual OM-PE@PbBrOH QDs (2 nm) to preserve their unique optoelectronic properties while preventing degradation from environmental factors. The resulting sandwich composite was proved to be a staggered-gap heterostructure with a p–n junction, in which the PbBrOH layer acted as a water-resisting covering and ZIF-67 layer promoted the electron mobility. Benefiting from the chemical interactions and interfacial charge dynamics among the different layers, the OM-PE@PbBrOH<span><math><mo>⊂</mo></math></span>ZIF-67 composite exhibited the superior stability in water for two months, and presented an enhanced photodegradation efficiency of organic dyes (malachite green, methylene blue and rhodamine B), which is around 24 times higher than that of pristine perovskite. By integrating the respective merits of each component, this work unprecedentedly constructs the 2 nm sandwich-like OM-PE@PbBrOH<span><math><mo>⊂</mo></math></span>ZIF-67 composite, and opens new avenues for stable, efficient, and multifunctional photocatalytic systems, with potential applications beyond wastewater treatment.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138581"},"PeriodicalIF":9.7,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739028","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":"Active-site modulation of nickel molybdate for efficient electrocatalytic water splitting","authors":"Lijie Zang, Qinglong Dong, Dipeng Sun, Yongqi Xu, Dong Zhao, Xiao Lyu","doi":"10.1016/j.jcis.2025.138556","DOIUrl":"10.1016/j.jcis.2025.138556","url":null,"abstract":"<div><div>The development of efficient non-precious electrocatalysts is crucial for the practical application of water splitting. Herein, improving the catalytic active sites of non-precious electrocatalysts for sluggish anodic oxygen evolution reaction (OER) is currently urgent to address. In this work, a strategy combining electronic structure modulation with surface reconstruction is proposed to enhance the active sites of nickel molybdate (NiMoO<sub>4</sub>) as an effective electrocatalyst for OER. By self-diffusion of phosphorus (P) on NiMoO<sub>4</sub>, the synthesized P<sub>0.79</sub>-NMO/NF possesses an overpotential of 280 mV at 10 mA cm<sup>−2</sup>, which is lower than that of IrO<sub>2</sub> electrocatalyst (343 mV) in alkaline solution. For water splitting performance, the P<sub>0.79</sub>-NMO/NF || Pt/Ti electrodes require only a cell voltage of 1.83 V to achieve 10 mA cm<sup>−2</sup>, which is lower than that of IrO<sub>2</sub> || Pt/Ti (1.94 V). The density functional theory (DFT) calculation results suggest that the enhanced OER performance is due to the tuned electronic structure of active sites by P doping, which contributes to a weak binding strength for intermediates. The experimental results also found that P doping could promote the generation of NiOOH on the surface, which further increased the active sites for OER. The work inspires a facile approach to synthesize efficient non-precious metal electrocatalysts for water splitting.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138556"},"PeriodicalIF":9.7,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739040","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}
Junmei Luo, Shufeng Bo, Seohyun Park, Beom-Kyeong Park, Oi Lun Li
{"title":"Morphology engineering and interface electron modulation of crystalline-amorphous Co9S8-MoSx heterostructure with N-doped carbon for fast and stable sodium-ion storage","authors":"Junmei Luo, Shufeng Bo, Seohyun Park, Beom-Kyeong Park, Oi Lun Li","doi":"10.1016/j.jcis.2025.138515","DOIUrl":"10.1016/j.jcis.2025.138515","url":null,"abstract":"<div><div>Rational design and synthesis of robust and reversible anode materials are critical for sodium-ion storage; however, further development remains hindered by sluggish kinetics, volume expansion, and unsatisfactory cycling stability. To address these issues, precise structural optimization and interface modulation are highly desirable. Herein, a hierarchical hollow crystalline-amorphous Co<sub>9</sub>S<sub>8</sub>-MoS<sub><em>x</em></sub> heterojunction coated with N-doped carbon (Co<sub>9</sub>S<sub>8</sub>-MoS<sub><em>x</em></sub>@NC) is designed and prepared via facile reduction/oxidation reactions, polydopamine coating, and sulfurization processes. The hierarchical hollow structure along with N-doped carbon provides internal buffering space, relieves volume variations, and enhances the conductivity. Moreover, crystalline-amorphous Co<sub>9</sub>S<sub>8</sub>-MoS<sub><em>x</em></sub> heterostructure offers the abundant active sites and induces an interfacial electric field via electron redistribution, thus enhancing Na<sup>+</sup> adsorption and diffusion abilities and overall electrochemical performances as evidenced by experimental and theoretical results. Benefiting from these structural and interfacial advantages, Co<sub>9</sub>S<sub>8</sub>-MoS<sub><em>x</em></sub>@NC exhibits superior rate performance (362.3 mAh g<sup>−1</sup> at 10.0 A g<sup>−1</sup>) and excellent cycling stability (511.1 mAh g<sup>−1</sup> at 2.0 A g<sup>−1</sup> after 1000 cycles). In addition, Co<sub>9</sub>S<sub>8</sub>-MoS<sub><em>x</em></sub>@NC//Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> full cell evinces impressive performance and practical application potential. Furthermore, various ex-situ characterizations verify a reversible intercalation-conversion storage mechanism throughout the sodiation/desodiation processes. The strategic integration of rational morphology engineering and heterostructure construction in this work provides valuable insights into the development of advanced anodes for efficient and durable energy storage systems.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138515"},"PeriodicalIF":9.7,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750842","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":"Asymmetric charge polarized heteronuclear nonmetal dual-atom catalysts for efficient electrocatalytic carbon dioxide reduction","authors":"Yafei Zhao , Liang He","doi":"10.1016/j.jcis.2025.138564","DOIUrl":"10.1016/j.jcis.2025.138564","url":null,"abstract":"<div><div>Electrocatalytic carbon dioxide (CO<sub>2</sub>) reduction reaction (CO<sub>2</sub>RR) is a crucial pathway for achieving carbon neutrality and facilitating the circular utilization of carbon resources. Using first principles study, we designed a series of single-atom catalysts (SACs) and dual-atom catalysts (DACs) anchored at S vacancies in monolayer molybdenum disulfide (MoS<sub>2</sub>), with boron (B) and carbon (C) functioning as active sites. Our results reveal that exclusively parallel configured DACs (BB-, BC- and CC-MoS<sub>2</sub>) demonstrate sufficient CO<sub>2</sub> capture and activation capabilities. Comprehensive characterization via binding energy (<em>E</em><sub>b</sub>) analysis, ab initio molecular dynamics (AIMD) simulations, partial density of states (PDOS) calculations and work function (<em>Φ</em>) evaluation confirms these catalysts possess exceptional stability, enhanced electrical conductivity, and superior electron transfer capabilities. Charge density difference analysis combined with Bader charge analysis elucidates that asymmetric charge distribution, induced by electrostatic polarization and charge transfer at exposed active sites, is a critical prerequisite for achieving high catalytic performance. This electronic configuration enables BC-MoS<sub>2</sub> to achieve selective conversion of CO<sub>2</sub> to methane (CH<sub>4</sub>) at a low limiting potential (<em>U</em><sub>L</sub> = −0.48 V), outperforming both BB- and CC-MoS<sub>2</sub>. This work provides valuable insights into designing novel and efficient MoS<sub>2</sub>-based electrocatalysts.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138564"},"PeriodicalIF":9.7,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739023","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}
Xinjie Song , Zewen Li , Yunxia Li , Yipeng Wang , Yuxuan Zhang , Junnan Tao , Di Hu , Gang Cheng , Wenxin Dai
{"title":"Highly active amorphous nitrogen-doped niobium oxide for deep photocatalytic oxidation of NO under visible light","authors":"Xinjie Song , Zewen Li , Yunxia Li , Yipeng Wang , Yuxuan Zhang , Junnan Tao , Di Hu , Gang Cheng , Wenxin Dai","doi":"10.1016/j.jcis.2025.138561","DOIUrl":"10.1016/j.jcis.2025.138561","url":null,"abstract":"<div><div>A series of amorphous nitrogen-doped niobium oxide (X-N-Nb<sub>2</sub>O<sub>5</sub>, X = 2, 3, 4) was synthesized via high-temperature annealing under an ammonia atmosphere. Their photocatalytic performance for deep NO oxidation under visible light was systematically evaluated. Nitrogen doping effectively narrowed the band gap by introducing impurity energy levels, enhanced visible-light absorption responsiveness and improved photogenerated charge separation efficiency. By inducing oxygen vacancies (OVs), nitrogen doping improved the surface reactivity toward NO and O<sub>2</sub> adsorption and activation. Among the as-prepared samples, 3-N-Nb<sub>2</sub>O<sub>5</sub> exhibited the highest NO removal efficiency and excellent cyclic stability, maintaining 80 % conversion after five cycles under 50 % relative humidity, with markedly suppressed NO<sub>2</sub> generation. In-situ DRIFTS and EPR analyses revealed the enhanced production of reactive oxygen species and provided insights into the reaction mechanism. This work offers a promising strategy for designing visible-light-responsive photocatalysts for air purification.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138561"},"PeriodicalIF":9.7,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724221","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":"Metal-organic framework-derived porous cerium-doped tricobalt tetraoxide dodecahedrons for efficient detection of hydrogen sulfide","authors":"Long Huang , Haoming Zhang , Hongyu Xu , Wen Zeng , Qu Zhou","doi":"10.1016/j.jcis.2025.138567","DOIUrl":"10.1016/j.jcis.2025.138567","url":null,"abstract":"<div><div>Highly selective detection of toxic hydrogen sulfide (H<sub>2</sub>S) is crucial, as it is a by-product of many industrial processes. Metal oxide semiconductors (MOSs)-based chemiresistive gas sensors have been extensively utilized in gas detection; nevertheless, developing MOSs with innovative nanostructures is essential to boost their gas-sensing capabilities. Herein, we prepared porous dodecahedral cobalt tetraoxide (Co<sub>3</sub>O<sub>4</sub>) with varying cerium (Ce) doping concentrations using metal-organic framework (MOF) templates for H<sub>2</sub>S sensing. The sensor based on 3 at.% Ce-doped Co<sub>3</sub>O<sub>4</sub> demonstrated optimum H<sub>2</sub>S-sensing performance, characterized by high sensitivity (response = <em>|R</em><sub><em>g</em></sub> <em>- R</em><sub><em>a</em></sub><em>| / R</em><sub><em>a</em></sub> <em>× 100 %</em> = 151.6 %), a short response time (41 s), and excellent selectivity toward 100 ppm H<sub>2</sub>S at 220 °C. These enhancements are attributed to a large specific surface area, high Co<sup>3+</sup>/Co<sup>2+</sup> ratio, rich surface adsorbed oxygen, and strong H<sub>2</sub>S adsorption. Density functional theory (DFT) calculations confirmed that Ce-doped Co<sub>3</sub>O<sub>4</sub> exhibited a higher H<sub>2</sub>S adsorption energy and a greater charge transfer capacity compared to pristine Co<sub>3</sub>O<sub>4</sub>. By combining this optimal sensor with the bald eagle search (BES)-optimized random forest (RF) (BES-RF) algorithm, a high prediction accuracy for H<sub>2</sub>S concentration was achieved. This study provides a new strategy to improve the practicality of MOSs-based gas sensors for indoor toxic gas detection through machine learning assistance.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138567"},"PeriodicalIF":9.7,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724222","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":"Novel organic-inorganic Z-scheme heterojunction for enhanced photocatalytic hydrogen evolution coupled with selective oxidation of benzyl alcohol oxidation","authors":"Chuanxu You, Pengyu Guo, Baining Zhang, Peng Zhang, Runwei Wang, Zongtao Zhang, Shilun Qiu","doi":"10.1016/j.jcis.2025.138563","DOIUrl":"10.1016/j.jcis.2025.138563","url":null,"abstract":"<div><div>The development of a synergistic dual-functional photocatalyst for hydrogen (H<sub>2</sub>) evolution and the value-added oxidation of benzyl alcohol (BA) is of great significance for both energy conversion and organic synthesis. In this study, a porous <em>Z</em>-scheme heterojunction photocatalyst (Mn<sub>0.05</sub>Cd<sub>0.95</sub>)<sub>3</sub>(C<sub>3</sub>N<sub>3</sub>S<sub>3</sub>)<sub>2</sub>/Mn<sub>0.05</sub>Cd<sub>0.95</sub>S (MCTMT/MCS) was successfully constructed via a simple wet-chemical method combined with hydrothermal decomposition. By controlling the hydrothermal decomposition process, the specific surface area of the catalyst was significantly increased from 15.71 m<sup>2</sup>/g to 202.77 m<sup>2</sup>/g, which is conducive to the enhanced contact between reactant molecules and the surface of the photocatalyst, thereby increasing the probability of the photocatalytic reaction. Under visible light irradiation, the optimal MCTMT/MCS heterojunction exhibited outstanding photocatalytic performance, with an H₂ evolution rate of 1.42 mmol·g<sup>−1</sup>·h<sup>−1</sup> and a BA conversion rate exceeding 90 %, which is seventeen times higher than MCTMT. After 25 h of cyclic testing, the H₂ evolution rate remained at 1.12 mmol·g<sup>−1</sup>·h<sup>−1</sup>, significantly surpassing that of single-component catalysts. Moreover, UPS analysis elucidated the specific electron transfer pathway in the <em>Z</em>-scheme heterostructure of MCTMT/MCS, revealing that efficient charge separation and transfer significantly enhanced photocatalytic activity. This study provides valuable insights into the design of synergistic bifunctional metal sulfide photocatalysts for photocatalytic green H<sub>2</sub> production and the synthesis of high value chemicals.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138563"},"PeriodicalIF":9.7,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724223","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":"Natural halloysite nanotubes enclosing PdAg alloy nanoparticles as nanoreactors with enhanced catalytic performance","authors":"Tao Zhou , Zhe Liu , Kyeounghak Kim , Taekyung Yu","doi":"10.1016/j.jcis.2025.138531","DOIUrl":"10.1016/j.jcis.2025.138531","url":null,"abstract":"<div><div>Hollow nanoreactors, with their void-confinement effects and stable carrier properties, hold great promise for catalytic applications. In this study, we present a green and versatile method to confine PdAg alloy nanoparticles (NPs) within halloysite nanotubes (HNTs), creating highly efficient catalysts (Pd<sub>x</sub>Ag<sub>y</sub>@HNTs-OH) for the reduction of toxic pollutants like 4-nitrophenol (4-NP), Methyl Orange (MO), and Congo Red (CR). PdAg NPs are selectively anchored to the inner surface of HNTs, with the exclusively lumen-confined PdAg<sub>3</sub>@HNTs-OH exhibiting superior activity compared to dual-surface-loaded counterparts (d-PdAg<sub>3</sub>@HNTs), directly evidencing the critical role of void confinement. Experimental and density functional theory (DFT) studies reveal that HNTs modulate the electronic structure of PdAg NPs, reducing energy barriers for 4-NP adsorption and intermediate conversion. This electronic optimization, combined with spatial confinement, ensures exceptional catalytic performance. The work establishes a dual engineering strategy that integrates electronic regulation with nanoscale spatial control to design high-performance catalytic nanoreactors.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138531"},"PeriodicalIF":9.7,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724217","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}