Materials Science and Engineering: B最新文献

{"title":"Structural modulation of Cu-BTC/PS nanofiber membrane and its low resistance antimicrobial air filtration application","authors":"Zhicheng Feng ,&nbsp;Yinghua Li ,&nbsp;Jianzhang Mai ,&nbsp;Weixing Yang","doi":"10.1016/j.mseb.2025.118582","DOIUrl":"10.1016/j.mseb.2025.118582","url":null,"abstract":"<div><div>Increasing air pollution poses a serious challenge to human beings. In view of the contradiction between filtration efficiency and pressure drop and the single function of traditional air filtration materials, the present study synthesized Cu-BTC by room temperature solvent method, and then based on the strategy of in-situ modification of Cu-BTC, Cu-BTC/PS-2 composite membranes with low filtration resistance and antibacterial resistance were constructed by modulating the pore structure of polystyrene (PS) fibre membranes. The composite membrane achieved 99.79 % filtration efficiency against PM_0.3 with a pressure drop of only 50.1 Pa. The stability of the composite membrane was significantly better than that of the commercial electret melt-blown filters, and the antimicrobial rate of the composite membrane against <em>E. coli</em> was greater than 99.9 %. This study provides a new material design strategy for the development of a new generation of high-efficiency, low-resistance and antibacterial air filtration materials.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118582"},"PeriodicalIF":3.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580072","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":"Numerical simulation of vanadium dioxide integrated MAPbI3 solar cells for enhanced thermal stability and photovoltaic performance","authors":"Min Li ,&nbsp;Shuai Guo ,&nbsp;Xiaoyu Zhao ,&nbsp;Sufeng Quan ,&nbsp;Xuefeng Wang ,&nbsp;Mengxuan Wu ,&nbsp;Dieter Weller ,&nbsp;Ruibin Liu","doi":"10.1016/j.mseb.2025.118550","DOIUrl":"10.1016/j.mseb.2025.118550","url":null,"abstract":"<div><div>The selection of appropriate transport layer materials is of vital importance for enhancing the stability and performance of perovskite solar cells (PSCs). In this study, vanadium dioxide (VO₂) was employed as an electron transport layer (ETL) to investigate the influence of its phase transition properties on PSC performance. Given the high-temperature resistance of titanium dioxide (TiO₂), a p-i-n structured PSC with the configuration of ITO/Spiro-OMeTAD/MAPbI₃/TiO₂/VO₂/Ag was constructed. Through numerical simulation, the PCE of the VO₂-based perovskite solar cells reaches 8.226 % at 30 °C. When the temperature rises to 80 °C, the power conversion efficiency (PCE) does not show a decline but increases up to 9.429 %. This phenomenon reveals the superior thermally stable properties of the proposed structure when exposed to elevated temperature. Further optimization of the VO₂ layer thickness at 80 °C revealed that a thickness of 65 nm enables the device to achieve a peak efficiency of 9.601 %, while maintaining over 90 % of the initial PCE under reduced light intensities. These results demonstrate that the introduction of VO₂ and its interaction with TiO₂ in a layered structure can effectively adapt to high-temperature environments, providing valuable insights for developing efficient and thermally stable perovskite solar cells.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118550"},"PeriodicalIF":3.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589002","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":"Exploring the photoelectrochemical properties of SrxZn1-xO nanomaterials and versatile applications to photocatalytic degradation of E133 food coloring and fingerprint detection","authors":"A. Meribai ,&nbsp;I. Mansouri ,&nbsp;H. Lahmar ,&nbsp;S. Douafer ,&nbsp;S. Boulahlib ,&nbsp;M. Özacar ,&nbsp;Y. Bessekhouad","doi":"10.1016/j.mseb.2025.118584","DOIUrl":"10.1016/j.mseb.2025.118584","url":null,"abstract":"<div><div>This work investigates the successful preparation of Sr_xZn_1-xO materials at various Sr content in which the related structural, photoelectrochemical, photo activity, and fingerprint detection properties are highlighted. XRD, SEM imaging, EDAX (with mapping), UV–visible diffuse reflectance (UV–Vis DRS) spectroscopy, photoluminescence (PL) spectroscopies, and photoelectrochemical techniques (including J-V, Tafel, and Mott-Schottky plots, also EIS diagrams are applied) are the used technics to evaluate the properties of the prepared materials. The pure wurtzite phase is generated for all Sr_xZn_1-xO materials with particle crystallites ranging from 42 to 48 nm. EDAX spectroscopies identify Sr presence with high distribution homogeneity. Both direct (3.232 eV- 3.255 eV) and indirect optical (3.132 eV, −3.176 eV) transitions occur. Also, the Urbach energy abated from 92.93 meV to 51.65 meV. Photoelectrochemical characterization indicates that Sr_xZn_1-xO materials are of n-type conductivity with a slight dependence on photocurrent onset potential V_on (−0.041 V_ECS-0.090 V_ECS), the flat band potential V_fb (−0.113 V_ECS- −0.239 V_ECS), and charge carriers concentration N_D (2.114 × 10²⁷ cm⁻¹ –12.248 × 10²⁸ cm⁻¹) with Sr content. Also, the EIS modeling through the equivalent circuit shows Sr content dependence, and the generated electrochemical systems are under kinetic control. Sunlight-assisted photodegradation of E133 over Sr_xZn_1-xO was successfully investigated. The optimum configuration is obtained with Sr_0.1Zn_0.9O at pH 8, demonstrating a complete degradation in less than 42 min and following a first-order kinetic model (<em>k</em> = 6.52 10^-2 min⁻¹). According to the COD parameters, mineralization co-occurs with discoloration (42 min). Using Sr_xZn_1-xO nanoparticles to detect the fingerprints on various substrates, including glass surfaces, kitchen vessels, and plastic sheets, was successful. Materials made of Sr_0.05Zn_0.95O and Sr_0.1Zn_0.9O were both considered promising candidates for forensic use. Mechanisms of Sr-acting are clarified in the light of interdisciplinary studies.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118584"},"PeriodicalIF":3.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580010","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":"Role of Eu3+ concentration on photoluminescence and electrochemical studies of Bi2Cr4O15 nanoparticles","authors":"Roopa K.N. ,&nbsp;Y.S. Vidya ,&nbsp;H.C. Manjunatha ,&nbsp;Rajavaram Ramaraghavulu ,&nbsp;R. Munirathnam ,&nbsp;S. Manjunatha ,&nbsp;Vishwalinga Prasad B. ,&nbsp;M. Shivanna ,&nbsp;Bhanupriya H.","doi":"10.1016/j.mseb.2025.118540","DOIUrl":"10.1016/j.mseb.2025.118540","url":null,"abstract":"<div><div>In the current study, Bi₂Cr₄O₁₅ (BCO):Eu(1-9 mol%) nanoparticles are synthesized using Aloe vera gel extract. The as-formed samples are calcined at 600 °C for 3 h. The Bragg reflections of BCO NPs confirms the formation of triclinic crystal structure. The addition of Eu<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> dopant did not alter the Bragg reflections except the variations in intensity. The crystallite size decreases with increase in dopant concentration from 20 to 13 nm. The surface morphology of BCO:Eu(1 mol%) NPs reveals agglomeration along with irregular and rod-like shapes. This agglomeration, size and shape of the NPs changes with increase in dopant concentration. The optical energy band gap increases from 2.73 to 2.85 eV with increase in dopant concentration. The photoluminescence emission spectra recorded at 285 nm excitation shows a prominent peak at 572 nm, which is attributed to the characteristic Eu<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> ⁵D₀ <span><math><mo>→</mo></math></span> ⁷F₂ transition of Eu doped materials. The CIE coordinates lies well within the yellow region. The average correlated color temperature was found to be 4077 K. This material is often used in workspaces, industrial areas, and outdoor lighting etc. The electrochemical analysis of Eu<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span>-doped Bi₂Cr₄O₁₅ shows specific capacitance values of 29.44–63 F/g, with the lowest charge transfer resistance (Rct) observed at 9 mol% doping. Nyquist plots reveal improved conductivity and ion diffusion, supported by a reduction in the Warburg coefficient (<span><math><mi>σ</mi></math></span>) from 502.30 to 270.53. These findings highlight 9 mol% as the optimal doping concentration, making the material promising for electrochemical applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118540"},"PeriodicalIF":3.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588907","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":"Green engineered zinc chromite doped with Sm3+ nanoparticles: Structural, photoluminescence and supercapacitor properties","authors":"Priyanka M. ,&nbsp;Vidya Y.S. ,&nbsp;Manjunatha H.C. ,&nbsp;Munirathnam R. ,&nbsp;Manjunatha S. ,&nbsp;Shivanna M. ,&nbsp;Suman Kumar ,&nbsp;Krishnakanth E.","doi":"10.1016/j.mseb.2025.118503","DOIUrl":"10.1016/j.mseb.2025.118503","url":null,"abstract":"<div><div>This groundbreaking research successfully synthesized Samarium-doped ZnCr₂O₄ nanoparticles (NPs) using the solution combustion method. Aloe vera gel extract is used as a reducing agent. As-formed samples are subjected to calcination at 500 °C for 3 h. X-ray diffraction analysis unambiguously proved pure cubic spinel structure. Notably, increasing the dopant concentration led to a drop in crystallite size from 13.89 ± 1.3 to 11.58 ± 1.1 nm. TEM image shows the existence of agglomerated irregularly shaped NPs and the evaluated crystallite size matches with Scherrer’s method. SEM images clearly indicates the formation of smaller, longer length nanorods and irregular size and shaped NPs with an increase in dopant quantity. The energy band gap (<span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>g</mi></mrow></msub></math></span>) reduced from 2.91 to 2.87 eV. Photoluminescence (PL) measurements under a 293 nm excitation wavelength revealed a pronounced emission peak at 592 nm. The concentration quenching was observed at a 5 mol% doping concentration. The CIE and CCT coordinates unequivocally verified the orange red emission which can be attributed to ⁴G<span><math><mrow><msub><mrow></mrow><mrow><mn>5</mn><mo>/</mo><mn>2</mn></mrow></msub><mspace></mspace><mo>→</mo></mrow></math></span> ⁶H<span><math><msub><mrow></mrow><mrow><mn>7</mn><mo>/</mo><mn>2</mn></mrow></msub></math></span> transition of Sm<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> within the host lattice, providing a warmer appearance advisable for indoor lighting applications. Electrochemical analyses, including cyclic voltammetry, were performed to elucidate redox reactions, electrode kinetics, and electrochemical behavior. Ion transport kinetics were precisely determined through Electrochemical Impedance Spectroscopy, while supercapacitance values were assessed via Galvanostatic Charge–Discharge studies. Impressively, the supercapacitance values ranged from 89.35 and 130.92 F/g, highlighting their remarkable sensitiveness to dopant quantity. Thus, the NPs produced in this pioneering study holds promising applications in the realm of energy storage materials and in display technology.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118503"},"PeriodicalIF":3.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589001","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 annealing temperature on photoluminescence properties of Bi-doped gadolinium fluoride (GdF3) and oxyfluoride (GdOF, Gd4O3F6) phosphors","authors":"Babiker M Jaffar ,&nbsp;R.E. Kroon ,&nbsp;Rudolph M. Erasmus ,&nbsp;Vinod Kumar ,&nbsp;Odireleng Martin Ntwaeaborwa","doi":"10.1016/j.mseb.2025.118585","DOIUrl":"10.1016/j.mseb.2025.118585","url":null,"abstract":"<div><div>Bi³⁺-doped GdF₃, Gd₄O₃F₆ and GdOF phosphors were synthesized via the co-precipitation method and annealed at different temperature. Pure GdF₃ was obtained after annealing at 500 and 600 °C, while phase transformations to Gd₄O₃F₆ and then to GdOF occurred at 700 and 800 °C, respectively. The optimal luminescence was achieved from Gd_0.99OF:Bi_0.01 annealed at 800 °C in air. Photoluminescence measurements revealed that undoped Gd₄O₃F₆ and GdOF exhibit a narrowband emission at 315  nm under 275  nm excitation, corresponding to the ⁶P_7/2 → ⁸S_7/2 transition of Gd³⁺. The broad blue emissions for Gd₄O₃F₆:Bi and GdOF:Bi under 257  nm excitation are attributed to transitions between the ³P₁ excited state and ¹S₀ ground state of Bi³⁺ ions. Additionally, Gd₄O₃F₆:Bi phosphors demonstrated similar blue emissions with slight spectral shifts due to differences in host lattice symmetry and local coordination environments around Bi³⁺. These findings underscore the tunability of Bi³⁺-activated luminescence in Gd-based hosts and their potential for blue-emitting phosphors in LED applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118585"},"PeriodicalIF":3.9,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580071","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":"La0.6Pr0.4Co0.8Ni0.2O3-δ nano-fibrous perovskite cathodes for solid oxide fuel cells","authors":"Xiushi Lan,&nbsp;Aihemaiti Tuniyazi,&nbsp;Yinzhuo Jia,&nbsp;Zhe Zhang,&nbsp;Hui Fan","doi":"10.1016/j.mseb.2025.118577","DOIUrl":"10.1016/j.mseb.2025.118577","url":null,"abstract":"<div><div>Perovskite-type nanofibrous La_0.6Pr_0.4Co_0.8Ni_0.2O_3-δ (LPCN-fiber) and powdered La_0.6Pr_0.4Co_0.8Ni_0.2O_3-δ (LPCN-powder) were prepared by electrospinning and citric acid combustion methods, respectively. The Brunner-Emmet-Teller (BET) analysis demonstrated that LPCN-fiber possessed a higher specific surface area (6.39 m²/g), which endowed it with a greater number of active sites and improved ion transport pathways. In addition, both the X-ray photoelectron spectroscopy (XPS) and distribution of relaxation time (DRT) proved the enhanced oxygen reduction reaction (ORR) activity of LPCN-fiber than that of LPCN-powder. The electrochemical performance measurements revealed that the single cell equipped with LPCN-fiber cathode exhibited a lower polarization resistance (0.15 Ω cm²) and a higher maximum power density (1.16 W cm⁻²) at 800 °C compared to LPCN-powder based cell. Furthermore, the cell with LPCN-fiber cathode showed high long-term stability. These results indicate that morphological regulation is an effective strategy to develop SOFCs featuring excellent oxygen transport properties.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118577"},"PeriodicalIF":3.9,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570519","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":"Nanoporous and biocompatible TEMPO-oxidized cellulose Nanofibrils/Sodium Alginate/Polyvinyl alcohol (CNF/SA/PVA) aerogel with potential applications in hydrophobic organic contaminants removal and cytotoxicity tests","authors":"Cheera Prasad ,&nbsp;Seung Hoon Oh ,&nbsp;Dong Joo Min ,&nbsp;Sung Woo Lee ,&nbsp;You-Ree Nam ,&nbsp;M.Venkata Subbaiah ,&nbsp;Jet-Chau Wen ,&nbsp;Jong Hyuk Bae ,&nbsp;Hyeong Yeol Choi","doi":"10.1016/j.mseb.2025.118583","DOIUrl":"10.1016/j.mseb.2025.118583","url":null,"abstract":"<div><div>Hydrophobic and oleophilic absorbents have been widely studied for oil spill cleanup but often suffer from low biocompatibility and poor reusability. In this study, ultralight, flexible, and hydrophobically modified TEMPO-oxidized cellulose nanofibril (CNF)-based aerogels were fabricated using chemical cross-linking of CNF, PVA, glutaraldehyde, and sodium alginate (SA), followed by freeze-drying and methyltrichlorosilane (MTCS) vapor-phase silanization. The resulting aerogels exhibited interconnected porous structures with tunable pore size depending on CNF content. The 0.5CNF/SA/PVA aerogels achieved a high water contact angle of 139.5° and demonstrated outstanding oil adsorption capacity (e.g., 40.25 g/g for sunflower oil). Adsorption behavior followed the pseudo-second-order kinetic model more closely than the first-order model. Additionally, cytotoxicity testing revealed high biocompatibility, with less cell damage than the positive control. These findings suggest that hydrophobic CNF-based aerogels are promising candidates for environmentally friendly oil spill remediation and oily wastewater treatment.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118583"},"PeriodicalIF":3.9,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572126","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":"Stable Pickering emulsions comprising ZIF-8/MXene nanocomposites and chemical surfactant with effective H2S scavenging performance","authors":"Nansee S.K. Abu Zaid ,&nbsp;Mustafa S. Nasser ,&nbsp;Khaled A. Mahmoud ,&nbsp;Sagheer A. Onaizi","doi":"10.1016/j.mseb.2025.118543","DOIUrl":"10.1016/j.mseb.2025.118543","url":null,"abstract":"<div><div>Hydrogen sulfide (H₂S) generation during oilfield operations presents significant safety, environmental, and operational challenges, necessitating effective in-situ scavenging solutions. In this context, Pickering emulsions stabilized by solid nanoparticles (NPs) at the oil–water interface offer a promising alternative to conventional systems by not only improving emulsion stability but also enabling multifunctional applications such as H₂S mitigation. Despite recent progress in emulsion and gas treatment technologies, emulsion formulations that are capable of effectively removing H₂S from sour gases are still lacking in the literature. Additionally, the integration of ZIF-8/MXene nanocomposites into Pickering emulsions for simultaneous stabilization and gas scavenging remains unexplored. Thus, this study aims to address this gap by designing a dual-functional Pickering emulsion system stabilized by ZIF-8/MXene nanocomposites in combination with Tween 40 surfactant, capable of both interfacial stabilization and H₂S removal. The nanocomposites were synthesized and characterized by XRD, SEM, and EDS. Oil-in-water (O/W) emulsions with varying concentrations (0.1–1.5 wt%) of the ZIF-8/MXene nanocomposites were systematically evaluated for rheological behavior, interfacial tension, kinetic stability, and structural integrity. Rheological analysis indicated a transition from Newtonian to shear-thinning behavior with increasing nanocomposite loading, suggesting the formation of internal networks. The emulsions maintained suitable flowability under elevated temperatures, and interfacial tension measurements showed significant reduction due to synergistic interactions between the nanocomposite and Tween 40. Stability assessments revealed minimal phase separation at lower nanocomposite concentrations, while higher loadings led to destabilization due to excess particle aggregation. H₂S removal experiments confirmed the system’s scavenging functionality, with a breakthrough capacity of 1049.5 mg H₂S/L emulsion (76.54 mg H₂S/g nanocomposite). To the best of our knowledge, this is the first report on the formulation of ZIF-8/MXene-based Pickering emulsions and the demonstration of their excellent H₂S scavenging capability. The findings reported herein introduce a multifunctional platform that addresses both safety and operational challenges in oilfield applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118543"},"PeriodicalIF":3.9,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572125","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":"Quartz crystal microbalance modified with rhodamine-polyacrylonitrile nanofibers for acetone vapor sensing","authors":"Rifat Capan ,&nbsp;Inci Capan ,&nbsp;Mevlut Bayrakci","doi":"10.1016/j.mseb.2025.118581","DOIUrl":"10.1016/j.mseb.2025.118581","url":null,"abstract":"<div><div>Rhodamine based polyacrylonitrile (PAN-RHE) electrospun nanofiber sensor was used to investigate for the vapor sensor application against acetone, ethanol, and benzene vapors at room temperature. Quartz crystal microbalance technique was employed to collect the time-dependent sensor response data which were analyzed for the determination of sensor parameters and for the investigation of the adsorption behavior between nanofiber and vapor molecules. The acetone vapor yielded the highest response with a best response with a sensitivity of 0.0243 Hz/ppm. The limit of detection and limit of quantification for acetone vapor were determined as 135.80 ppm and 411.52 ppm, respectively. Pseudo first-order and Elovich models were chosen to investigate adsorption dynamics. Pseudo first-order adsorption rate and Elovich desorption constant were calculated using time-dependent data. A possible hydrogen binding or dipole–dipole interaction between the vapor molecules and rhodamine and/or nitrile units of the PAN fiber chain was proposed as a sensor interaction mechanism.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118581"},"PeriodicalIF":3.9,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570520","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}