Materials Science and Engineering: B最新文献

{"title":"Autogenous deposition of copper oxide onto polyaniline nanocomposite catalysts for the photodegradation of methylene blue and congo red: Experimental inquiry, RSM optimization, and DFT calculation","authors":"Ahmed Boucherdoud ,&nbsp;Abdelkarime Seghier ,&nbsp;Djamal Eddine Kherroub ,&nbsp;Oukacha Douinat ,&nbsp;Khedidja Dahmani ,&nbsp;Benaouda Bestani ,&nbsp;Noureddine Benderdouche","doi":"10.1016/j.mseb.2025.118015","DOIUrl":"10.1016/j.mseb.2025.118015","url":null,"abstract":"<div><div>This research focuses on synthesizing, characterizing, and applying copper oxide@polyaniline (CuO@PANI) nanocomposites formed by the autogenous deposition of CuO nanoparticles onto polyaniline (PANI). The synthesis was conducted via an in-situ polymerization process using CuCl₂ as both a catalyst and precursor for CuO. The resulting CuO@PANI nanocomposite was characterized through Fourier Transform Infrared Spectroscopy (FTIR), UV–visible spectroscopy, X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and point of zero charge (pHPZC) analysis. The study evaluated the catalytic efficiency of CuO@PANI in degrading Methylene Blue (MB) and Congo Red (CR) dyes, achieving notable degradation efficiencies of 85 % for MB and 92 % for CR at an initial dye concentration of 50 mg/L using a catalyst dose of 1.2 g/L over 60 min. The catalyst demonstrated consistent performance across four cycles, highlighting its potential as an environmentally friendly solution for wastewater treatment.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118015"},"PeriodicalIF":3.9,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rational construction and design of bimetallic Co-Ni species by pulsed laser irradiation for efficient electrocatalytic oxygen evolution reaction","authors":"Wenzhe Cao ,&nbsp;Xiaohui Ren ,&nbsp;Ying Wen ,&nbsp;Tian Zhang ,&nbsp;Weiqing Chu ,&nbsp;Zhaoyang Liu ,&nbsp;Haoran Zou ,&nbsp;Qian Guo ,&nbsp;Rongsheng Chen ,&nbsp;Feng Ma ,&nbsp;Hongwei Ni","doi":"10.1016/j.mseb.2025.118011","DOIUrl":"10.1016/j.mseb.2025.118011","url":null,"abstract":"<div><div>Oxygen evolution reaction (OER) process is a four-electron transfer system that stuck with sluggish reaction kinetics. To break the limitation of dynamics, the developing of transition metal-based catalysts with high activity and good stability is attractive for realizing efficient OER. In this regard, transition metal-based bimetallic Co-Ni species that loaded on carbon cloth has been prepared by pulse laser fabrication method and applied as OER catalysts. With the assistance of carbon substrate, the rational constructed structure and controlled Co-Ni components can be further achieved by adjusting the laser pulse and adjusting the mole ratio of Co/Ni from 0 to 2. The optimal OER performance has been discovered by the Co-Ni species (Co/Ni 1:2) that prepared under 3000 pulses (0.218 W cm⁻²), while 50 mA cm⁻² current density can be accomplished at low overpotential of 0.42 V vs. RHE in 1 M KOH electrolyte. The enhanced OER performance of Co-Ni species can be attributed to the greatly reduced particle size and increased active sites that formed in 3000 pulses. Importantly, the electrocatalyst displayed a remarkable stability that operated at 10 mA cm⁻² for about 10 h without significant decay. In this study, we discovered Ni-Co species loaded on carbon cloth for electrocatalytic OER application. The successful preparation of Ni-Co species by pulse laser fabrication strategy paves the way for the large-scale fabrication of transition metal-based catalysts with high efficiency and stability.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118011"},"PeriodicalIF":3.9,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene/ZnO/Poly[ε]caprolactone fibre nanocomposites for light and gas sensing applications","authors":"Martynas Tichonovas ,&nbsp;Mindaugas Ilickas ,&nbsp;Dainius Martuzevičius ,&nbsp;Simas Račkauskas","doi":"10.1016/j.mseb.2025.118020","DOIUrl":"10.1016/j.mseb.2025.118020","url":null,"abstract":"<div><div>This study presents a flexible layered ZnO-polycaprolactone and graphene-polycaprolactone nanocomposite sensor for UV and NO₂ gas sensing applications, created by electrospinning to achieve a fibrous high surface area structure. Sensor performance was evaluated by varying ZnO concentration and sensing layer thickness, with 50 % ZnO content in the nanocomposite yielding optimal response to UV. NO₂ gas sensing tests demonstrated significant resistivity changes, with R_g/R_a values reaching up to 5.65 and minimal response reduction under elevated humidity. The sensor calculated NO₂ detection limit was 0.544 ppm, indicating its suitability for environmental and industrial monitoring, as well as potential integration into flexible electronics and wearable technologies.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118020"},"PeriodicalIF":3.9,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 study on synthesis of TiOF2/CuO particles via impregnation method and their further transformation to F-TiO2/CuO","authors":"Dmytro Semenovych Sofronov ,&nbsp;Oleksiy Mykhailovych Lebedynskiy ,&nbsp;Miroslaw Rucki ,&nbsp;Liliya Anatolyevna Frolova ,&nbsp;Pavel Viktorovich Mateychenko ,&nbsp;Sergey Sergeevich Minenko ,&nbsp;Sylwester Stawarz","doi":"10.1016/j.mseb.2025.118027","DOIUrl":"10.1016/j.mseb.2025.118027","url":null,"abstract":"<div><div>Heterostructures TiO₂/CuO attract attention as potential photocatalysts able to remove organic contaminations out of water. In the paper, a novel method is proposed for synthesis of heterostructures F-TiO₂/CuO through the process of thermal transformation of the TiOF₂/Cu(NO₃)₂ particles. The particles of TiOF₂/Cu(NO₃)₂ has been synthesized via titanium oxyfluoride impregnation in the aqueous solution of copper nitrate. From the results of the X-ray analysis, it was found that after impregnation, phases of copper hydrate Cu(NO₃)₂ • H₂O and basic copper nitrate Cu₂(OH)(NO₃)₃ were formed on the surface of TiOF₂ particles. During the process of heating at 300 °C, nitrate phases underwent decomposition, accompanied with the appearance of CuO phase and formation of TiOF₂/CuO. In turn, decomposition of TiOF₂ took place in temperatures between 300 °C and 600 °C with formation of rutile and anatase phases. The experimental research results demonstrated that the fluorine concentration in F–TiO₂ increased in the compounds with higher copper concentration. Evaluation of the photocatalytic activity of the synthesized particles toward methylene blue (MB) decomposition was performed. It was found also that the synthesized TiOF₂/CuO structures without thermal treatment exhibited higher photocatalytic activity toward MB, compared with fluorized titanium dioxide particles. Increase of the dopant CuO concentration promoted increase of the photocatalytic activity of the particles.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118027"},"PeriodicalIF":3.9,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving microstructure and stability of FAMAPbI3 perovskite using bilayer TiO2/SnO2 electron transport layer","authors":"Asim Aftab,&nbsp;Md Imteyaz Ahmad","doi":"10.1016/j.mseb.2025.118006","DOIUrl":"10.1016/j.mseb.2025.118006","url":null,"abstract":"<div><div>An efficient electron transport layer (ETL) is important to transport electrons while blocking holes and to reduce the electrical shunting between transparent electrode/perovskite interface to enhance the performance and stability of perovskite solar cells (PSCs). TiO₂ is widely utilized as ETL. However, it has a lower carrier mobility and tends to catalyse the degradation of the perovskite absorber layer. Alternatively, SnO₂ also has a suitable wide band gap and exhibits better carrier mobility. In this work, we have compared the performance and stability of the perovskite absorber layer deposited on different TiO₂, SnO₂ and TiO₂/SnO₂ ETL. The bilayer ETL shows greater mobility facilitating effective charge extraction and achieving greater power conversion efficiency (∼13 %) in PSCs. Our results show that improved wettability and microstructure of bilayer TiO₂/SnO₂ ETL resulted in a compact and large-grained FAMAPbI₃ film, which increased the performance and stability of the perovskite layer in ambient conditions (28–35 °C, RH 70 %).</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118006"},"PeriodicalIF":3.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and optimization of high-performance MoSe2/PC60BM heterostructure based self-powered photodetector","authors":"Vivek Dubey ,&nbsp;Anupam Srivastava ,&nbsp;Rupam Sinha ,&nbsp;Nirmal Roy","doi":"10.1016/j.mseb.2025.118018","DOIUrl":"10.1016/j.mseb.2025.118018","url":null,"abstract":"<div><div>This study explores the performance of molybdenum diselenide (MoSe₂) based photodetectors for wearable technology, point-of-care diagnostics, and environmental monitoring, focusing on the MoSe₂ absorber layer and <span><span>[6]</span></span>, <span><span>[6]</span></span>-phenyl C₆₀ butyric acid methyl ester (PC₆₀BM) in an Au/MoSe₂/PC₆₀BM/FTO configuration. Using the solar cell capacitance simulator, we optimized various physical parameters of the MoSe₂ layer, including thickness, doping, defect density, interfacial defects, and radiative recombination, to achieve optimal device performance. The optimized device exhibited a maximum detectivity of 6.70×10¹³ Jones and a responsivity of 0.60 A/W under 790 nm illumination. The impact of incident power, temperature, and different metal contacts was also examined. This study uniquely integrates multiple critical parameters, including temperature-dependent behavior and metal contact effects, providing a comprehensive analysis that differentiates it from previous work. Our findings highlight the potential of transition metal dichalcogenides (TMDC) based photodetectors for a range of optoelectronic applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118018"},"PeriodicalIF":3.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategic synthesis of biowaste-derived magnetic hydrochar for adsorption and photocatalytic removal of Chlorpyrifos herbicides from simulated wastewater","authors":"Suman Kumari ,&nbsp;Arush Sharma ,&nbsp;Pooja Dhiman ,&nbsp;Manita Thakur ,&nbsp;Zouhaier Aloui ,&nbsp;Manickam Selvaraj ,&nbsp;Ajay Kumar","doi":"10.1016/j.mseb.2025.118009","DOIUrl":"10.1016/j.mseb.2025.118009","url":null,"abstract":"<div><div>This study presents the synthesis of a magnetic hydrochar composite (ZM_MHC) from Zea mays biowaste, integrating CoFe₂O₄ nanoparticles (5–20 wt%). Characterization techniques included BET, XRD, FESEM, HRTEM etc. The ZM_MHC composite with 15 wt% CoFe₂O₄ exhibited the highest surface area of 162.89 m²/g. Saturation magnetization (Ms) values for composites with 5 %, 10 %, and 15 wt% CoFe₂O₄ were 34.70 emu/g, 42.73 emu/g, and 54.40 emu/g, respectively, indicating magnetic properties. The composite displayed a band gap of 2.18 eV, enabling visible light activity. For wastewater, ZM_MHC achieved 97.4 % CPF adsorption in 120 min at pH 6.0, following the Langmuir model (R² = 0.99). Photocatalytic degradation removed 94.2 % CPF in 180 min, with the rate k₁ 0.0161 min^-1. Radical scavenging experiment confirmed the photoexcited electrons as key contributors to CPF degradation. Its high surface area, magnetization, visible-light activity, and reusability make it promising for wastewater treatment.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118009"},"PeriodicalIF":3.9,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of the resistive switching properties of YBa2Cu3O7−x/Nb:SrTiO3 heterostructures","authors":"Jiqiang Jia ,&nbsp;Jingran Li ,&nbsp;XiaoPeng Liu ,&nbsp;Yoshifumi Oshima ,&nbsp;Li Lei","doi":"10.1016/j.mseb.2025.118001","DOIUrl":"10.1016/j.mseb.2025.118001","url":null,"abstract":"<div><div>Metal/Nb:SrTiO₃ (NSTO) heterostructures exhibit strong resistive switching (RS) effects. However, structural mismatches hinder the formation of a stable, low-defect interface, affecting their RS performance. YBa₂Cu₃O_7−x (YBCO) with an excellent electrical conductivity, high work function, and similar crystal structure to NSTO, can form a high-quality barrier interface with NSTO. In this study, YBCO films were deposited on NSTO using pulsed laser deposition. The RS characteristics and photovoltaic effect of the YBCO/NSTO structure were thoroughly investigated. The current–voltage curves reveal that this structure exhibits two different bipolar RS effects at different voltages. Electron energy loss spectroscopy measurements indicate that the oxygen vacancies in both YBCO and NSTO can migrate and redistribute under an external electric field, resulting in two changes in the interface barrier height, which induce two distinct RS effects. Under ultraviolet light, the first RS effect occurs at a slightly lower voltage than in the dark, while the second RS effect occurs at a slightly higher voltage.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118001"},"PeriodicalIF":3.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, stabilization and characterization of zerovalent iron nanoparticles for remediation of hexavalent chromium – Comparing the hydrazine and sodium borohydride routes","authors":"Sutanu Maiti,&nbsp;Sudha Goel,&nbsp;Binay K. Dutta","doi":"10.1016/j.mseb.2025.118002","DOIUrl":"10.1016/j.mseb.2025.118002","url":null,"abstract":"<div><div>Zerovalent iron nanoparticles (nZVI) have found diverse applications as reducing agents in chemical synthesis, particularly for environmental remediation. The preparation of nZVI using the novel hydrazine reduction route (CMC-nZVI) has been studied in detail in this work. A comparison was made with the conventional sodium borohydride method (ZVI_B). The former route was found to be more effective in producing smaller (11–50 nm), relatively uniform nZVI particles with a narrow size distribution and spherical morphology. This particle size is much smaller than that of material prepared via the borohydride route, as hydrazine is a stronger reducing agent. The challenge of stabilizing the nanoparticles was addressed using carboxymethyl cellulose (CMC) coating to prevent aggregation and premature oxidation. Nanoparticles synthesized without CMC capping showed poorer stability and a broader particle size range. The effects of process parameters were investigated in detail. The synthesized nZVI particles were thoroughly characterized using several techniques, including SEM, AFM, XRD, FTIR, SQUID, BET, and XPS. The BET surface area of CMC-nZVI particles was more than four times that of ZVIB, indicating superior reactivity. The hydrazine hydrate route, combined with CMC stabilization, offers a promising approach for the large-scale production of stable nZVI nanoparticles suitable for environmental remediation applications. The potential of nZVI was demonstrated by testing the remediation of Cr(VI)-contaminated soil in the solid phase, where nearly complete reduction was achieved within approximately three hours.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118002"},"PeriodicalIF":3.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 silicone, molybdenum disulfide, and multi-walled carbon nanotube on the tribological, mechanical, and thermal properties of polyamide 66/carbon fibre composites","authors":"Bilal Özsarıkaya ,&nbsp;Salih Hakan Yetgin ,&nbsp;Ali Durmuş ,&nbsp;Fatih Çalışkan","doi":"10.1016/j.mseb.2025.118016","DOIUrl":"10.1016/j.mseb.2025.118016","url":null,"abstract":"<div><div>The effect of silicone, molybdenum disulfide (MoS₂), and multiwalled carbon nanotubes (MWCNT) on the mechanical, thermal, and tribological characteristics of polyamide 66 (PA66) composites reinforced with carbon fibre (CF) was extensively examined in this paper. An injection molding machine was used to make test samples for mechanical, thermal, and tribological testing after the twin-screw extruder was used to create the composite materials. To evaluate the mechanical behaviours of PA66 and composite samples, tensile strength (TS) and flexural strength (FS), tensile modulus (TM) and flexural modulus (FM), elongation at break (EB), and impact strength were measured. The TS and TM of PA66/30CF increased by 89.6 % and 374.3 % compared with PA66. PA66/30CF/0.5MWCNT nanocomposites exhibited better tensile (strength of 196.5 and modulus of 23575 MPa, respectively) and flexural (strength of 289 and modulus of 17700 MPa, respectively) properties. DSC analysis indicated that the melting temperature (<em>T</em>_m) of PA66 composites was not affected by adding CF, MWCNT, MoS₂ and silicone. In contrast, composites’ crystallisation temperature (T_c) and degree of crystallinity (X_c%) values were higher than those of PA66. The addition of MWCNT, MoS₂ and silicone yielded a further increase in Xc, and with 42.4 %, the PA66/30CF/0.5MWCNT/3MoS₂ nanocomposite yielded the highest value. The test for pin-on-disk (PoD) wear was conducted under dry sliding conditions, with 0.4, 0.8, and 1.2 m/s of sliding velocity, and a load of 20, 30, and 40 N. The tribological measurements implied that the PA66 composites prepared with 30 wt% of CF, 0.5 wt% MWCNT and 3 wt% MoS₂ showed the best friction and wear behavior. The COF of PA66 polymer was around 0.4, while the COF of PA66/CF composites was between 0.25–0.35. The incorporation of MWCNT, MoS₂, and silicone into the PA66/30CF composite led to a further decrease in the COF, yielding values ranging between 0.15 and 0.25. It has been deduced that the MWCNT and MoS₂ additives improved the service life and thermomechanical durability of PA66 in a distinguishable manner. It was also revealed that the composite reinforced with MWCNT and MoS₂ exhibited enhanced wear resistance due to the strong interfacial bonding.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"314 ","pages":"Article 118016"},"PeriodicalIF":3.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}