Applied Surface Science最新文献

{"title":"Biosynthesis of enhanced magnetic iron Oxide@ZnO nanocomposites with incorporated Ni species for the photodegradation of dyes","authors":"Isabella C. Prescilio, Saulo H.M. Abe, Andris F. Bakuzis, Leonardo G. Vasconcelos, Ericson Hamisses N. S. Thaines, Leonardo H. de Morais, Virginia C.P. Silva, Renato G. Freitas, Marcos J. Jacinto","doi":"10.1016/j.apsusc.2025.163385","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163385","url":null,"abstract":"The textile industry generates approximately 700 million kilograms of dyes annually, with about 10–20 % improperly discharged into the environment, poing significant risks to aquatic ecosystems and human health. This study reports the sustainable biosynthesis of FeO_x@ZnO (FZ) and FeO_x@ZnO-Ni (FZNi) nanocomposites using hydroethanolic extract and infusion from <em>Magonia pubescens</em> A. St. Hil. Characterization techniques confirmed their crystalline structure, composition, morphology and optical properties. Photodegradation tests using rhodamine B under visible light for 300 min showed superior efficiency for FZNi (96.8 %) compared to FZ (87.5 %), attributed to enhanced light absorption from Ni doping, which lowers the band gap. Density Functional Theory (DFT) calculations analyzed ZnO(100) and ZnO(101) surfaces. The optimized ZnO(100) surface exhibited a decrease in the c lattice parameter from 5.209 Å to 4.935 Å, while ZnO(1<!-- --> <!-- -->0<!-- --> <!-- -->1) displayed triclinic characteristics with a lattice parameter set of a = 3.23 Å, b = 3.07 Å, and c = 6.02 Å. Partial density of states (PDOS) analysis revealed a higher band gap of 1.93 eV for ZnO(1<!-- --> <!-- -->0<!-- --> <!-- -->1), than the experimental value of 3.46 eV. Substitutional doping with Ni in ZnO(1<!-- --> <!-- -->0<!-- --> <!-- -->1) significantly reduced the band gap energies to 1.08 eV and 1.41 eV, respectively, while introducing new defect states near the valence band due to d-orbital contributions from the doped cations. These theoretical findings, aligned with experimental results, demonstrate that partial Ni doping and the presence of Ni nanoparticles on the material’s surface effectively narrow the band gap in ZnO(1<!-- --> <!-- -->0<!-- --> <!-- -->1). Ni-ZnO(1<!-- --> <!-- -->0<!-- --> <!-- -->1) exhibits the most significant reduction, enhancing its photodegradation performance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"140 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism of fluorescent quenching in ship fuel nitrogen content detection using Nb-doped SnO2 quantum dots as the fluorescent probe","authors":"Ce Fu, Xiaoying Feng, Haoze Tian, Yanan Zhang, Zhaoxia Zhai, Peilun Qiu, Chuqiao Hu, Jianqiao Liu, Junsheng Wang","doi":"10.1016/j.apsusc.2025.163380","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163380","url":null,"abstract":"The mechanism of fluorescence variation in quantum dots (QDs) is crucial for the performance of fluorescence probes. However, the complex mechanisms involved in QDs make the accurate detection of ship fuel nitrogen content (FNC) to mitigate combustion emission pollution a challenging task. Herein, we demonstrate that Nb doping-induced band structure modulation can alter the electronic and optical properties of SnO₂ QDs, and use the fluorescence quenching effect to explain the mechanism for detecting FNC. In this study, we established a low-cost, simple-to-operate, high-accuracy, and low-detection-limit method for detecting FNC, based on the fluorescence quenching phenomenon of Nb-SnO₂ QDs. The method has a linear range of 0.51 % m/m to 0.66 % m/m, a detection limit of 0.011 % m/m, R² = 0.99512, and a recovery rate ranging from 95.79 % to 102.2 %. Density functional theory (DFT) calculations were used to analyze the adsorption structures of four typical functional groups –NH₂, −SH, –COOH, and –OH on the Nb-SnO₂ (110) surface, revealing the adsorption energy and charge transfer during the detection process. It was found that Nb doping enhances the adsorption capability of SnO₂ QDs for –NH₂. Finally, the fluorescence quenching mechanism was determined to be the photoinduced electron transfer (PET). This mechanism provides important insights for the subsequent doping modulation of QDs’ band structure and optical properties, as well as for the development of other fluorescence probes.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"29 2 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photo-electric regulation on resistive switching characteristics of HfOx-based memories","authors":"Tingting Guo, Yanan Wang, Yan Zhang, Yaqi Shi, Li Duan","doi":"10.1016/j.apsusc.2025.163375","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163375","url":null,"abstract":"Cu/HfO_x/Pt and Cu/Al₂O_x/HfO_x/Pt devices were prepared to investigate the resistive switching performance and optical properties. Both HfO_x and Al₂O_x/HfO_x samples show bipolar RS characteristics and good retention. By comparison, Al₂O_x/HfO_x sample exhibits reduced operating voltage and improved uniformity, which may be related to more oxygen vacancies in Al₂O_x film and near Al₂O_x/HfO_x interface by interfacial reaction. Besides, the rupture of conductive filaments near Al₂O_x/HfO_x interface retains parts of residual paths in the film which suppress the random formation of oxygen vacancy filaments and improve the stability of the device. By applying 255 nm light, HfO_x sample shows no obvious change, while smaller operating voltages is observed for Al₂O_x/HfO_x sample. In addition, Al₂O_x/HfO_x sample exhibits multiple resistance states under different light intensities, showing multi-level storage capabilities. The conductive mechanism of Al₂O_x/HfO_x sample with and without light is consistent with the SCLC effect, which is attributed to the formation and fracture of oxygen vacancy conductive filaments. Results indicate the synergism of light and electric effect can provide a new idea for the development of high storage density memory.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"6 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High cross-plane thermal conductivity in graphene films achieved via controlled thermal reduction of graphene oxide and embedding of multi-walled carbon nanotubes","authors":"Xun Li ,&nbsp;Tianhao Zhang ,&nbsp;Ruxuan Zhang ,&nbsp;Jing Liu ,&nbsp;Tian Tian ,&nbsp;Hexiang Han ,&nbsp;Kangli Cao ,&nbsp;Yanjie Su","doi":"10.1016/j.apsusc.2025.163297","DOIUrl":"10.1016/j.apsusc.2025.163297","url":null,"abstract":"<div><div>The thermal conductivity graphene films using graphene oxide (GO) as the raw material experience an expansion in interlamellar spacing and weaker compactness attributed to the decomposition of oxygen-containing functional groups during thermal reduction. The process indirectly influences the cross-plane thermal conductivity (<em>K</em>_⊥), resulting in limitations for the potential applications. In this work, a graphene film with high <em>K</em>_⊥ value<!--> <!-->is achieved by integration of<!--> <!-->controlled thermal reduction of GO film and the strategic embedding multi-walled carbon nanotubes (MWCNTs) into graphene layers. The results demonstrate that a moderate thermal reduction rate (3 °C min⁻¹) helps to avoid excessive morphological evolution in GO. Simultaneously, the uniformly embedded MWCNTs network acts as bridging structures, which can effectively repair the point defects in graphene and significantly reduce the interlamellar interfacial thermal resistance. After optimization of the thermal reduction process and the MWCNTs loading, the <em>K</em>_⊥ value of the MWCNT-graphene film at room temperature is 23.28 W m⁻¹ K⁻¹, which is 4.82 times higher than that of pristine graphene. This work deepens the understanding of the GO thermal reduction process and offers valuable guidance for the design of advanced graphene composite films with superior cross-plane thermal management capabilities.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"702 ","pages":"Article 163297"},"PeriodicalIF":6.3,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of boron incorporation in MOR zeolite on the carbonylation of dimethyl ether to methyl acetate","authors":"Jianbing Wu, Jihua Liu, Huichao He, Ge Hua, Wei Zhou, Hong Ma, Yongzhao Wang","doi":"10.1016/j.apsusc.2025.163372","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163372","url":null,"abstract":"The incorporation of boron(B) into MOR zeolite offers a promising avenue for enhancing the catalytic performance in the carbonylation of dimethyl ether (DME) to methyl acetate (MA), a pivotal step in coal-to-ethanol processes. In this study, different contents of H₃BO₃ were introduced during the synthesis of MOR zeolites to develop H-MOR(nB) catalysts with tailored acidic properties. Comprehensive characterization techniques, including XRD, ICP-AES, FTIR, Raman, NH₃-TPD, NH₃-IR,¹¹B MAS NMR and ²⁷Al MAS NMR, revealed that B incorporation didn’t alter the crystal structure of MOR zeolite but significantly influenced the acidic sites distribution. Specifically, the introduction of B enhanced the proportion of active T3 sites within the eight-membered ring side pockets (8-MRS) while reduced deactivation-prone T4 sites in the twelve-membered rings(12-MR). These modifications increased the Brönsted acid site (BAS) content and strength in the 8-MRS, improving catalytic performance. Among the tested samples, H-MOR(7.8B) achieved the highest DME conversion (43%) and MA selectivity (97.5%), with better stability than that of H-MOR(0B) under reaction conditions. These findings were further supported by density functional theory (DFT) calculations. This work provides valuable insights for optimizing MOR zeolite acidity in DME carbonylation processes.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"36 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxidation-resistant boron-linked strengthened graphene-based composite","authors":"Jie Li, Wenjing Shi, Linqing Yang, Xiang Yu, Jun tang, Jipeng Wang, Jie Zhao, Xueer Kang, Liang Zhang, Changsheng Xing, Langlang Zhao, Lidong Wang","doi":"10.1016/j.apsusc.2025.163376","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163376","url":null,"abstract":"Direct sintering graphene powders into macro-scale and high-performance graphene-based composites presents a significant challenge due to high melting point of graphene. Besides, the problem of high temperature oxidation and ablation of graphene restricts its application. Here, centimeter-scale graphene composites were fabricated from boron nanoparticles and self-propagating high-temperature synthesis (SHS) graphene by spark plasma sintering (SPS). The B-C bonds and Y-type carbon structures are composed of covalent bonds, exhibiting stronger interactions than the conventional interfacial interactions and benefiting to improve the mechanical properties of graphene-based composites. Thus, the boron-graphene composite presents an exceptional flexural strength (309 MPa), superior compressive strength (487 MPa) and remarkable microscale compressive strength (6.25 GPa). It also exhibits outstanding oxidation resistant (the weight loss was only 0.2 % after oxidized at 1000°C). Furthermore, we employed molecular dynamics (MD) simulations to understand the strengthening mechanism conferred by boron linkage. The high-performance boron-graphene composites are lightweight, easy to prepare, and cost-effective, rendering them uniquely advantageous for practical applications across various fields.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"7 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Greatly enhanced exciton-photon coupling in a WS2-Si3N4 nanohole array-Ag film heterostructure","authors":"Shulei Li, Fu Deng, Lujun Huang, Yatao Zhang, Lidan Zhou, Sheng Lan","doi":"10.1016/j.apsusc.2025.163356","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163356","url":null,"abstract":"Two-dimensional transition metal dichalcogenides (TMD) monolayers are recognized as a promising platform for realizing strong coupling due to their exceptionally large bind energies of excitons. Various types of optical resonances, including DBR-based Fabry-Perot resonances, plasmonic resonances, Mie resonances, and guided mode resonances, have been proposed to facilitate strong coupling between excitons in TMD monolayers and optical nanocavities. However, there has been limited research on the strong coupling between multiple resonances and excitons in TMD monolayers. In this study, we propose a heterostructure composed of a WS₂-Si₃N₄ nanohole array and an Ag film to achieve robust strong coupling among surface transverse waveguide modes, surface lattice resonances (or guided mode resonances), and excitons in a WS₂ monolayer. Such a hybrid heterostructure inherits both advantages of surface lattice resonances in a Si₃N₄ photonic crystal slab with the surface plasmon-like modes at the dielectric-Ag interface, resulting in low-loss optical resonances and excellent field confinement. Consequently, the light-matter interaction among the surface transverse waveguide mode, surface lattice resonances, and excitons in the WS₂ monolayer is significantly enhanced. Utilizing angle-resolved scattering spectra measurements and numerical simulations, we observe substantial Rabi splitting and shifts in resonant peaks, which are indicative of hybrid mode coupling. The experimental results closely align with the simulations, thereby confirming the hybrid coupling of the surface transverse waveguide mode, surface lattice resonances, and excitons. Notably, we show that Rabi splitting, an indicator of the coupling strength, is significantly increased to 318 meV, thereby entering the strong coupling regime within a three-oscillator framework. These results not only deepen the understanding of hybrid mode interactions within dielectric photonic structures but also promote advancements in high-performance optoelectronic applications.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"47 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-step construction of low-dimensional hybrid carbon networks embedded with magnetic Fe nanoparticles for efficient microwave absorption","authors":"Jieling Liu, Changjin Mo, Yutong Wu, Jihui He, Xian Wang, Tao Wang, Rongzhou Gong, Yan Nie","doi":"10.1016/j.apsusc.2025.163342","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163342","url":null,"abstract":"Low-dimensional hybrid carbon networks with high electrical conductivity and low density are essential for designing lightweight and efficient microwave absorbing materials (MAMs). In this study, low-dimensional hybrid carbon networks with tailorable electromagnetic properties were successfully fabricated by a one-step method. These networks consist of (i) magnetic Fe nanoparticle-embedded, two-dimensional (2D) carbon lamellar structure and (ii) intertwined one-dimensional (1D) carbon nanotubes grown on the structure. These 1D-2D hybrid networks exhibit excellent electron transport, enhanced interfacial polarization, multiple loss mechanisms, and improved impedance matching. Consequently, they significantly boost MAM performance. With a 30 wt% absorbent filling fraction, the material achieves a reflection loss of less than − 10 dB across a frequency range of 5.0 GHz in the Ku band, with a matching thickness of only 1.67 mm. By tuning absorber thickness from 1.0 to 5.0 mm, the effective absorption bandwidth can reach up to 14.3 GHz, covering 89 % of the frequency range measured, and achieving a bandwidth of 10.0 GHz with 99 % absorption intensity. These results underscore a simple and effective strategy to construct low-dimensional hybrid carbon networks having tunable electromagnetic properties, that offers a promising pathway for the design of lightweight, broadband and efficient MAMs.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"16 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rationally regulating pore structures of porous carbon anodes by sulfur-doped carbon coating for high-rate sodium-ion storage","authors":"Kun Cao, Yanbo Ma, Chunlin Sun, Wenlong Feng, Chun Wang, Tianjin Li, Jiale He, Juntao Du, Kedong Song","doi":"10.1016/j.apsusc.2025.163359","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163359","url":null,"abstract":"Designing porous carbon anodes with high reversible capacity and rate capability is critical for sodium-ion storage. Herein, the pore structure of pitch-derived porous carbon is modified by the sulfur-doped carbon coating, as sodium-ion battery anodes. Firstly, the pitch-derived porous carbon (MP) with a large number of mesopores and macropores was obtained by regulation of the metal-assisted method. Then, these pore structures were designed and modified by filling with sulfur-doped carbon coating through the liquid phase coating method to obtain modified pitch-derived porous carbon (MPSC). The experimental results indicate that the carbon coating reduces specific surface area via a filling effect, enhancing reversible capacity. Meanwhile, 12.45 wt% sulfur doping widens interlayer spacing in both carbon coating and internal pitch matrix, promoting Na⁺ diffusion and creating reversible reaction sites that form a high potential plateau in charge/discharge curves. The MPSC anode exhibits excellent sodium-ion storage performance in a half-cell (293 mAh g⁻¹ at 1 A g⁻¹ after 2000 cycles) and outstanding high-rate performance (167 mAh g⁻¹ at 10 A g⁻¹ after 2000 cycles). This study provides a universal method for rationally modifying the porous carbon anodes to enhance sodium-ion storage performance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"16 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A supersaturated high-entropy alloy with both superior corrosion and mechanical properties","authors":"Zhengchen Han, Zhichao Ma, Guoxiang Shen, Hongcai Xie, Wei Zhang, Hongwei Zhao, Luquan Ren","doi":"10.1016/j.apsusc.2025.163290","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163290","url":null,"abstract":"As aerospace and marine engineering advance, alloys face increasingly stringent performance demands, particularly in corrosive environments. As a rule, introducing precipitates enhances alloy strength but often compromises corrosion resistance. This study achieved a synergistic improvement in both properties by controlling σ-phase precipitation through annealing temperature adjustments. 500 ℃ annealing enhanced mechanical strength via precipitation and dislocation strengthening, while optimizing beneficial oxides in the passive film improved corrosion resistance. Nevertheless, excessive annealing promoted large-scale precipitates, inducing microscopic galvanic corrosion and degrading overall performance. These findings offer insights into the composition design and industrial application of precipitation-strengthened high-entropy alloys (HEAs).","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"31 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}