Materials Chemistry and Physics最新文献_第9页

S-scheme NaxCoO2/g-C3N4 heterojunction photo-electrocatalysts for water splitting 用于水分离的 S 型 NaxCoO2/g-C3N4 异质结光电催化剂

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-13 DOI: 10.1016/j.matchemphys.2024.129853

{"title":"S-scheme NaxCoO2/g-C3N4 heterojunction photo-electrocatalysts for water splitting","authors":"","doi":"10.1016/j.matchemphys.2024.129853","DOIUrl":"10.1016/j.matchemphys.2024.129853","url":null,"abstract":"<div>Enabling a highly efficient charge separation on hetero-structural photo-electrocatalyst is crucial to achieve a high efficiency of water splitting technology for sustainable green hydrogen production. Herein, novel S-scheme hetero-structural materials, NaxCoO2/g-C3N4 (x = 0.5, 0.6, and 0.74), have been employed as photo-electrocatalysts for water splitting reaction. Their corresponding overpotential values under irradiation condition with the current density of 10 mA cm−2 were about 590 mV (x = 0.74), 555 mV (x = 0.6) and 710 mV (x = 0.5), respectively. Compared to the dark condition, NaxCoO2/g-C3N4 exhibited lower overpotentials. XPS and in-situ KPFM results further confirmed that an interfacial electric field was formed at the interface of NaxCoO2 and g-C3N4. Under the irradiation condition, the electrons from the conduction band of NCO flow toward to the valence band of CN to form S-scheme heterostructure, which could highly accelerate the reducing capability of CN, hence splitting water to produce hydrogen gas.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142002342","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}

引用次数: 0

Revealing the impact of ball milling as an intermediate stage in solid-state reaction synthesis of SmFeO3 particles 揭示球磨作为固态反应合成 SmFeO3 粒子中间阶段的影响

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-13 DOI: 10.1016/j.matchemphys.2024.129849

{"title":"Revealing the impact of ball milling as an intermediate stage in solid-state reaction synthesis of SmFeO3 particles","authors":"","doi":"10.1016/j.matchemphys.2024.129849","DOIUrl":"10.1016/j.matchemphys.2024.129849","url":null,"abstract":"<div>In this work, the impact of milling time on the structural, morphological, and magnetic properties is investigated in SmFeO3 (SFO) powders obtained by solid state reaction. Specifically, the ball milling process is incorporated as an intermediate step during the synthesis and their magnetic properties vary when the samples are milled for 4 and 10 h. Based on X-ray diffraction, the resulting samples crystallized in Pbnm space group, with a slight decrease in crystallite size and cell volume with milling time. These results are also supported by confocal Raman microscopy with a slight shift towards lower wavenumbers. In this sense, magnetic characterization demonstrates a weak ferromagnetic contribution coexisting with the dominant antiferromagnetic order. Butterfly shaped hysteresis loops are observed in both samples for T > 200 K while a single shaped loop is achieved for T < 200 K. Zero field cooled, and field cooled magnetization curves shows a broad maximum centered at 140 K and bifurcation of the two curves because of the competing interaction between the Sm+3 and Fe3+ ions into the SFO crystal structure. Interestingly, exchange bias (EB) effect is found up to 200 K with a field cool of 20 kOe for both samples. The existence of Fe–Fe, Fe–Sm, and Sm–Sm interactions in a cluster glass state induced by ball milling processes might be the main cause of such EB effect.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142011500","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}

引用次数: 0

Highly c-axis-oriented apatite-type lanthanum silicate thin films fabricated by magnetron sputtering under bias 在偏压条件下通过磁控溅射制造的高 c 轴定向磷灰石型硅酸镧薄膜

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-12 DOI: 10.1016/j.matchemphys.2024.129852

引用次数: 0

Study on the abnormal growth of goss oriented grains in Fe-3.2%Si steel: Role of thermomechanical processing and inhibitors 关于 Fe-3.2%Si 钢中取向晶粒异常生长的研究：热机械加工和抑制剂的作用

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-11 DOI: 10.1016/j.matchemphys.2024.129850

{"title":"Study on the abnormal growth of goss oriented grains in Fe-3.2%Si steel: Role of thermomechanical processing and inhibitors","authors":"","doi":"10.1016/j.matchemphys.2024.129850","DOIUrl":"10.1016/j.matchemphys.2024.129850","url":null,"abstract":"<div>Detailed characterization of Fe-3.2%Si steel after different stages of processing trails including hot-rolling, normalization annealing, cold-rolling with intermediate annealing, and finally, decarburization/primary annealing and secondary annealing has been carried out. The evolution of ferrite grain structure, grain boundary characteristics, and the micro-texture of the samples are characterized using electron backscatter diffraction (EBSD). The inhibiting precipitates such as MnS and CuS are studied under scanning and transmission electron microscopy (SEM and TEM). The evolution of ferrite grain structure and texture are explained considering the mechanisms (role of inhibitors, crystal orientation, special boundary, high energy medium angle boundary, grain boundary curvature) responsible for the abnormal growth of Goss oriented grains after final annealing treatment. Extremely coarse Goss oriented grains (as large as >20 mm) have been developed in this study. An analytical approach is presented at the end to explain the texture evolution during processing considering the Taylor factor maps (for different loading conditions) and the prediction of limiting ferrite grain size for abnormal grain growth, considering the size and fraction of the precipitates along with their coarsening and dissolution kinetics.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979070","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}

引用次数: 0

Copper-loaded ZIF-8-based immunosensor for early diagnosis of chronic kidney disease by detecting neutrophil gelatinase-associated lipocalin (NGAL) biomarker 通过检测中性粒细胞明胶酶相关脂质体（NGAL）生物标记物早期诊断慢性肾脏病的基于 ZIF-8 的铜负载免疫传感器

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-10 DOI: 10.1016/j.matchemphys.2024.129845

{"title":"Copper-loaded ZIF-8-based immunosensor for early diagnosis of chronic kidney disease by detecting neutrophil gelatinase-associated lipocalin (NGAL) biomarker","authors":"","doi":"10.1016/j.matchemphys.2024.129845","DOIUrl":"10.1016/j.matchemphys.2024.129845","url":null,"abstract":"<div>Metal-organic frameworks (MOFs) is a promising contender among the nanomaterials for biosensors due to their special properties, including high surface area, tunable porosity, and adaptable functionalization competences. Zeolitic imidazolate frameworks (ZIFs), a subclass of MOFs, have drawn precise attention for their excellent chemical stability and ease of synthesis. This study, for the first time, concentrates on the preparation and characterization of a Cu-loaded ZIF-8-based immunosensor for the detection of neutrophil gelatinase-associated lipocalin (NGAL), a crucial biomarker for chronic kidney disease (CKD). Loading copper (Cu) into the ZIF-8 framework improves its electrochemical properties, conductivity, and surface area, leading it an ideal platform for antibody immobilization and NGAL detection. The immunosensor utilized Staphylococcal Protein A (SPA) IgG binding protein for antibody immobilization, providing an alternative to traditional crosslinking chemistry, enhancing biosensor functionality. Structural analysis, morphological assessment, elemental mapping, and stoichiometric analysis confirmed the successful synthesis of Cu-loaded ZIF-8 nanocomposite. Assessment of the electrochemical performance of the immunosensor demonstrated sufficiently low limit of detection (80 pg mL−1) over a wide range of 0.1 ng mL−1 to 1000 ng mL−1 of NGAL along with superior selectivity, reproducibility, stability, and clinical feasibility. This advancement contributes to the rising knowledge on MOF-based biosensors and holds promise for future applications in disease diagnosis and healthcare monitoring.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141952773","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}

引用次数: 0

Highly sensitive dual mode dual side cross polarization converter based biosensor 基于高灵敏度双模双侧交叉偏振转换器的生物传感器

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-10 DOI: 10.1016/j.matchemphys.2024.129846

{"title":"Highly sensitive dual mode dual side cross polarization converter based biosensor","authors":"","doi":"10.1016/j.matchemphys.2024.129846","DOIUrl":"10.1016/j.matchemphys.2024.129846","url":null,"abstract":"<div>—This paper investigates a dual-side, dual-mode reflective cross-polarization converter for biosensing applications. The converter consists of a polyimide substrate with a modified dumbbell-shaped resonator on one surface and its complementary slot on another. The overall volume is 8.25μm × 8.25μm × 2.47 μm with dual-band operation of 6.39268–7.311692 THz and 9.783001–23.53473 THz for PCR≥80 % for front signal incidence and two full widths at half maximum (FWHM) bands i.e. 11.71594–12.26761 THz & 19.12042–19.87691 THz for back signal incidence. The periodicity is ∼λo/6, and substrate thickness is ∼λo/19 at 6.39268 THz. This device has performance stability for incident angle (θ)≤30o. The performance of this device can be tuned from dual-band operation to single-band by varying the chemical potential of the graphene strip for signal incidence from both sides. This device can classify cancer or tuberculosis-infected cells concerning healthy cells by using the variations in their corresponding refractive indices that lead to changes in the band edge frequencies. This device can differentiate between infected and healthy cells or different refractive indices with a high sensitivity of ∼5 THz/RIU. This device has merits of dual side sensing, wide operating bandwidth, multiple frequencies for sensing purposes, and high sensitivity over previously reported sensors.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979071","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}

引用次数: 0

Controlled release in sodium alendronate/halloysite/hydroxyapatite/gelatin nanocomposite scaffolds: A new insight into bone tissue engineering 阿仑膦酸钠/土铝酸盐/羟基磷灰石/明胶纳米复合支架的可控释放：骨组织工程的新视角

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-10 DOI: 10.1016/j.matchemphys.2024.129821

{"title":"Controlled release in sodium alendronate/halloysite/hydroxyapatite/gelatin nanocomposite scaffolds: A new insight into bone tissue engineering","authors":"","doi":"10.1016/j.matchemphys.2024.129821","DOIUrl":"10.1016/j.matchemphys.2024.129821","url":null,"abstract":"<div>The use of smart scaffolds with drug release capabilities is now widely recognized as a key approach in designing hard tissue substitutes. In this study, alendronate sodium (AL) was bound to halloysite nanotube (HNT) sheets through ionic and π-π interactions. Hydroxyapatite (HA) powder was synthesized using the co-precipitation method, and the drug/carrier complex was subsequently incorporated into a hydroxyapatite/gelatin (GEL) matrix. Composite scaffolds of GEL/HA/HNT/AL were then created using a freeze-drying technique. Different concentrations of HNT (0.5 %, 1 %, and 2 %) were tested to determine the optimal formulation. The scaffolds were subjected to extensive physical, chemical, and mechanical evaluations using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), compressive stress tests, and measurements of density and porosity. The release profile of alendronate sodium, scaffold swelling behavior in water, bioactivity, and in vitro performance were thoroughly assessed. Cell viability was tested using the MTT assay, while alkaline phosphatase (ALP) activity and cell adhesion studies were performed to evaluate osteogenic potential. The results revealed that the GEL/HA/1 % HNT/AL nanocomposite scaffold exhibited excellent properties, including efficient drug release, optimal swelling rates, and enhanced bioactivity. The MTT assay confirmed high cell viability, and both ALP activity and cell adhesion studies indicated strong potential for bone cell differentiation and repair. Thus, the GEL/HA/1 % HNT/AL nanocomposite scaffold is a highly promising platform for bone tissue engineering.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087806","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}

引用次数: 0

Phenosafranine integrated sulfonic acid-functionalized multi-walled carbon nanotubes for Cr(VI) detection 用于检测六价铬的酚磺胺集成磺酸功能化多壁碳纳米管

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-09 DOI: 10.1016/j.matchemphys.2024.129843

{"title":"Phenosafranine integrated sulfonic acid-functionalized multi-walled carbon nanotubes for Cr(VI) detection","authors":"","doi":"10.1016/j.matchemphys.2024.129843","DOIUrl":"10.1016/j.matchemphys.2024.129843","url":null,"abstract":"<div>This work presents the electroanalytical detection of hexavalent chromium, Cr(VI) using glassy carbon electrode modified with phenosafranine (PS+) ion exchanged on sulfonic acid-functionalized multi-walled carbon nanotubes (MWCNT-SO3H) i.e., MWCNT-SO3--PS+ as an electrochemical sensing platform (ESP). The prepared material, MWCNT-SO3--PS+ is assessed using various physiochemical characterization techniques for the successful ion exchange of PS+ onto the MWCNT-SO3H. The electrochemical viability of PS + for the electrocatalysis at the prepared ESP is tested using cyclic voltammetry. The ESP shows high sensitivity and selectivity towards Cr(VI) determination in the presence of several possible interferences with a limit of detection of 0.36 μM. Water samples from two sources are utilized for the real sample analyses showing a high recovery percentage with acceptable average relative standard deviation values. The proposed ESP exhibits high operational stability and storage stability with negligible change in current for more than a month.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979067","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}

引用次数: 0

Investigating the potential of NH2-Functionalized MIL-53(Fe) nanoparticle as a carrier for 5-fluorouracil through molecular dynamics simulation 通过分子动力学模拟研究 NH2 功能化 MIL-53(Fe)纳米粒子作为 5-氟尿嘧啶载体的潜力

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-08 DOI: 10.1016/j.matchemphys.2024.129831

{"title":"Investigating the potential of NH2-Functionalized MIL-53(Fe) nanoparticle as a carrier for 5-fluorouracil through molecular dynamics simulation","authors":"","doi":"10.1016/j.matchemphys.2024.129831","DOIUrl":"10.1016/j.matchemphys.2024.129831","url":null,"abstract":"<div>This study investigates the role of the NH2-functionalized MIL-53(Fe) nanoparticle as a carrier for the anti-cancer drug 5-fluorouracil (5-Fu) through molecular dynamics (MD) simulation. The Atom in Molecules (AIM) method was used to determine the interaction type between 5-Fu and NH2-MIL-53(Fe). The Steered Molecular Dynamics (SMD) approach was employed to calculate the free energy of drug encapsulation. The simulation included the NH2-MIL-53(Fe) nanoparticle containing 5-FU molecules and water molecules at different temperatures and 1 atm pressure. The properties analyzed included density, radial distribution functions, displacement, diffusion, and binding energy of the drug with NH2-MIL-55(Fe). It is shown that the drug was encapsulated in the framework channels and the variation of density of the system with temperature in the presence of nanoparticles decreased. The drug's mean square displacement, total self-diffusion coefficient, and diffusion coefficient in channel direction increased with time as temperature rose. The drug was aligned to have its oxygen atoms towards the metal nodes of the framework. However, The nitrogen atom of the amine functional group in NH2-MIL-53(Fe) interacts more with the F atom of 5-Fu which shows the effect of this functional group on the adsorption of the 5-Fu. The drug's adsorption percentage increased from 298 K to 328 K. The calculated binding energy increased with temperatures and was desirable as it countered the drug's repulsive forces with atoms of NH2-MIL-53(Fe). The results of the molecular docking simulation confirmed MD simulation.</div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142011499","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}

引用次数: 0

The synthesis and characterization of novel boron-containing B/Al-ZSM-12 zeolite 新型含硼 B/Al-ZSM-12 沸石的合成与表征

IF 4.3 3区材料科学

Materials Chemistry and Physics Pub Date : 2024-08-08 DOI: 10.1016/j.matchemphys.2024.129825

引用次数: 0