Bulletin of Materials Science最新文献_第3页

Sorptive remediation of fluoride by ultra-sonicated iron-based polyaniline nano-composite: optimization and modelling using artificial neural network, kinetic and thermodynamic study 超声铁基聚苯胺纳米复合材料对氟的吸附修复：基于人工神经网络的优化和建模、动力学和热力学研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-05 DOI: 10.1007/s12034-025-03431-4

Anjan Kumar Bej, Dipankar Jena, Prakash Chandra Mishra

{"title":"Sorptive remediation of fluoride by ultra-sonicated iron-based polyaniline nano-composite: optimization and modelling using artificial neural network, kinetic and thermodynamic study","authors":"Anjan Kumar Bej, Dipankar Jena, Prakash Chandra Mishra","doi":"10.1007/s12034-025-03431-4","DOIUrl":"10.1007/s12034-025-03431-4","url":null,"abstract":"<div>The present research work approaches the removal of fluoride from contaminated water using an eco-friendly novel iron-based polyaniline nano-composite (PAn) in a batch mode method. The fluoride adsorption efficiency was studied with variation of parameters like initial fluoride concentration 10-20 mg L−1, contact time 10-90 min, variation of adsorbent dose 0.1−1 g, temperature 25°, 30° and 40°C, pH 2-12 and presence of competing ions at 25°, 30° and 40°C and was optimised with artificial neural network model (ANN). The experimented adsorption data was best fitted to Langmuir adsorption isotherm with maximum adsorption capacity of 89.41 mg g−1 at 40°C. The adsorption kinetics followed the pseudo second order reaction. The thermodynamics studies indicate that the adsorption process was spontaneous and endothermic in nature. The maximum fluoride removal was found to be 91% with good agreement to the results predicted by ANN model (structure 5-10-1). The PAn nano-composite can be used maximum of up to four cycles for defluoridation of drinking water. To determine the adhesion of fluoride on the PAn nano composite, the material was characterized using different instrumental analyses like SEM EDS, BET, XRD and FTIR. The FePAn nanocomposite can be used maximum up to four cycles for defluoridation of drinking water.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Exploration on magnetic, dielectric and magnetodielectric properties of PNZT-strontium hexaferrite composites pnzt -锶六铁氧体复合材料的磁性、介电及磁介电性能探讨

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-30 DOI: 10.1007/s12034-025-03452-z

Gurpreet Singh, Harjeet Kaur, Sajan Masih, Arshdeep Kaur, Shiffali Middha, Sunil Kumar, Jasvir Singh, Jahangeer Ahmed, Javier Lopez Garcia, Satvir Singh, Nitin Tandon, Indu Sharma, Anupinder Singh

{"title":"Exploration on magnetic, dielectric and magnetodielectric properties of PNZT-strontium hexaferrite composites","authors":"Gurpreet Singh, Harjeet Kaur, Sajan Masih, Arshdeep Kaur, Shiffali Middha, Sunil Kumar, Jasvir Singh, Jahangeer Ahmed, Javier Lopez Garcia, Satvir Singh, Nitin Tandon, Indu Sharma, Anupinder Singh","doi":"10.1007/s12034-025-03452-z","DOIUrl":"10.1007/s12034-025-03452-z","url":null,"abstract":"<div>Magnetodielectric composites xPb0.8Nd0.2(Zr0.52Ti0.48)O3-1-xSrFe12O19 (x = 0.50, 0.52, 0.54, 0.56, 0.58) have been reported. Structural phase analysis confirmed successful synthesis of reported ceramic composites. Magnetic hysteresis reveals magnetic ordering in prepared composites whereas micrographs strongly support dielectric permittivity. All prepared composites exhibit high values of dielectric constant. Strong magnetodielectric response (MDR) is observed in low frequency region which goes on decreasing with frequency, indicating Maxwell-Wagner interfacial phenomenon in the studied composites. The MDR extends to higher frequency range (>100 kHz) signifying strain mediated mechanical coupling between ferrite and dielectric phases which is calculated in terms of the coupling coefficient (γ). </div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Pressure and temperature dependence of the dielectric properties in barium titanate 钛酸钡介电特性的压力和温度依赖性

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-29 DOI: 10.1007/s12034-025-03456-9

Ali Kiraci, Hamit Yurtseven

引用次数: 0

Chronopotentiometry-driven electrodeposition of Cu–Ni–W thin films on indium tin oxide substrates: a comprehensive study of microstructure and corrosion behaviour 时间电位驱动的Cu-Ni-W薄膜在氧化铟锡基底上的电沉积：微观结构和腐蚀行为的综合研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-28 DOI: 10.1007/s12034-025-03444-z

Himanshu Saini, Manvendra Singh Khatri

{"title":"Chronopotentiometry-driven electrodeposition of Cu–Ni–W thin films on indium tin oxide substrates: a comprehensive study of microstructure and corrosion behaviour","authors":"Himanshu Saini, Manvendra Singh Khatri","doi":"10.1007/s12034-025-03444-z","DOIUrl":"10.1007/s12034-025-03444-z","url":null,"abstract":"<div>Cu–Ni–W thin films were deposited by varying the current density from –5 to –60 mA cm–2 using the galvanostatic chronopotentiogram method on indium tin oxide (ITO) coated glass substrates. X-ray diffraction analysis revealed that Cu–Ni–W thin films exhibited face-centered cubic structures with the presence of specific crystallographic planes, particularly (111), (200) and (220) at 2θ values of 43.4°, 50.7° and 74.7°, respectively. The additional peaks observed at other 2θ values correspond to the NiW and Ni4W phases. The scanning electron microscopy micrographs of the films demonstrated a uniform structure characterized by a compact and dense morphology. The surface of the films displayed a metallic lustre attributed to the presence of Cu, Ni and W. The cross-sectional micrographs of the films indicated an average thickness of 1.1 to 1.2 µm. The energy dispersive X-ray spectroscopy analysis have shown that an increase in deposition current density leads to a rise in the relative concentration of Ni and W within the films, whereas the concentration of Cu decreased. The XPS survey spectrum also confirmed the presence of metallic Cu, Ni and W in the deposits. It was found that film deposited at higher current densities favours the growth of a smaller crystalline size of 17 nm and a higher degree of texture coefficient of 2.48. The maximum micro-strain of approximately 16% was calculated from the peak broadening of the X-ray diffractograms. The strong (111) texture and nano-crystallites as confirmed by XRD, resulted in an outstanding corrosion resistance of 16.22 kΩ-cm2 for the film deposited at –60 mA cm–2.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Impact of selenium (Se) substitution on the structural, electronic, transport and optical characteristics of wurtzite zinc telluride semiconducting compound for optoelectronic applications: a first-principles approach 硒（Se）取代对光电子应用的纤锌矿碲化锌半导体化合物的结构、电子、输运和光学特性的影响：第一性原理方法

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-19 DOI: 10.1007/s12034-025-03448-9

Sayantika Chanda

{"title":"Impact of selenium (Se) substitution on the structural, electronic, transport and optical characteristics of wurtzite zinc telluride semiconducting compound for optoelectronic applications: a first-principles approach","authors":"Sayantika Chanda","doi":"10.1007/s12034-025-03448-9","DOIUrl":"10.1007/s12034-025-03448-9","url":null,"abstract":"<div>This study investigates the electronic, transport and optical properties of selenium-doped zinc telluride (ZnSexTe1−x) ternary alloys in the hexagonal wurtzite (B4) phase at varying selenium concentrations using DFT-based FP-LAPW methods at (x = 0.0, 0.25, 0.50, 0.75, 1.0). Structural properties were calculated using the WC-GGA functional, while electronic, transport and optical properties were computed using the mBJ-GGA functional. All the specimen exhibits direct bandgaps with a Γ–Γ transition. The lattice constants (a and c) decrease nonlinearly with more selenium, while the bulk modulus (B) and bandgap (Eg) increase. The electronic transport properties were evaluated through the Seebeck coefficient, electrical conductivity, electronic thermal conductivity and electronic power factor. Additionally, the optical properties due to scattering were computed, and the results reveal the optically anisotropic nature of all the studied alloys, with birefringence clearly observed. The optical energy gap (Eopt) of each ternary alloy lies in the UV region, promising for UV optoelectronic device applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ultrasound-assisted synthesis of zeolite from bentonite clay: optimization using response surface methodology 超声辅助膨润土合成沸石：响应面法优化

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-19 DOI: 10.1007/s12034-025-03447-w

S Nemakanga, W B Ayinde, R Mudzielwana

{"title":"Ultrasound-assisted synthesis of zeolite from bentonite clay: optimization using response surface methodology","authors":"S Nemakanga, W B Ayinde, R Mudzielwana","doi":"10.1007/s12034-025-03447-w","DOIUrl":"10.1007/s12034-025-03447-w","url":null,"abstract":"<div>This study synthesised zeolite from bentonite clay, utilizing an ultrasound-assisted technique and response surface methodology (RSM) to optimize the process. Bentonite clay was dehydrated by calcining at 800°C for 1 h. Thereafter, dehydrated bentonite clay was subjected to alkali dissolution using ultrasonication and hydrothermal treatment. In the alkali dissolution stage, optimum conditions of 2.5 M of NaOH at 2 h of sonication were determined using the RSM tool, showcasing a SiO2 and Al2O3 composition of 26.93 and 4.64%, respectively. After alkali dissolution, the obtained residues from the remaining dehydrated bentonite clay were characterized using X-ray fluorescence (XRF) to observe the remaining silica and alumina composition. In hydrothermal treatment, the synthesized zeolites were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD) and fourier-transform infrared spectroscopy (FTIR). The RSM analysis indicated optimum hydrothermal treatment conditions of 105°C for temperature treated at 1 h 30 min. Furthermore, the RSM plots for hydrothermal treatment showed that the crystallinity of the obtained zeolite samples increased with hydrothermal temperature and time. Moreover, the characterisation results showed that lower hydrothermal temperatures and crystallization times exhibited zeolite NaP phases with uniform spherical morphology, whilst higher temperatures and times exhibited hydroxy sodalite phases and large irregular particles. This methodology offers a promising approach for efficient and controlled zeolite synthesis from bentonite clay with the assistance of RSM.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Exploring the synergy between mechanical and radiation shielding properties in Ni–Ti–Hf shape memory alloys 探索Ni-Ti-Hf形状记忆合金的机械性能和辐射屏蔽性能的协同作用

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-19 DOI: 10.1007/s12034-025-03453-y

Z Y Khattari

引用次数: 0

Aligned hierarchical Zn(OH)2/GaN heterostructure grown on grooved sapphire for UV detection 在槽形蓝宝石上生长的排列层次Zn(OH)2/GaN异质结构用于紫外检测

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-16 DOI: 10.1007/s12034-025-03455-w

Sitong Liu, Lanfeng Li, Shuyi Yang, Yaowen Xu, Naisen Yu, Hongyu Fu

引用次数: 0

Lightweight microwave-absorbing epoxy–reticulated vitreous carbon foam composites manufactured by vacuum-assisted resin transfer moulding for structural application 轻型微波吸收环氧网状玻璃碳泡沫复合材料制造的真空辅助树脂转移模塑结构应用

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-16 DOI: 10.1007/s12034-025-03445-y

Nishant Gaikwad, Rajkumar Wagmare, T Umasankar Patro

{"title":"Lightweight microwave-absorbing epoxy–reticulated vitreous carbon foam composites manufactured by vacuum-assisted resin transfer moulding for structural application","authors":"Nishant Gaikwad, Rajkumar Wagmare, T Umasankar Patro","doi":"10.1007/s12034-025-03445-y","DOIUrl":"10.1007/s12034-025-03445-y","url":null,"abstract":"<div>Lightweight and mechanically strong sandwich panels are extensively used in the aerospace, defence and energy sectors. In this context, the present study aims to develop high-strength lightweight multifunctional composites using epoxy and reticulated vitreous carbon (RVC) foam. For this, epoxy-infiltrated RVC foams were prepared by the scalable vacuum-assisted resin transfer moulding (VARTM) technique. The complex porous structure of RVC foam, owing to its local variations in the density as well as open-cell content, entails variations in the compressive strength of the composite, making it a function of density and porosity. To rationalize the statistical variations in composites, the Weibull distribution was used to predict compressive properties, measured on a large number of specimens. The Weibull analysis revealed a regression coefficient of 0.98 and a characteristic strength of ~75.1 MPa. The average compressive strength and modulus of the epoxy–RVC foam composite were found to be 68.52 ± 16.03 and 1303.7 ± 141.63 MPa, respectively. Moreover, the flexural strength and modulus of these composites were found to be 33.6 ± 6.6 and 4.73 ± 2.6 GPa, respectively. In addition, the composites showed electromagnetic interference shielding effectiveness of >20 dB with absorption domination in X-band frequency. On account of its lightweight, promising microwave absorption and mechanical properties, epoxy–RVC foam composites are potential candidates as multifunctional core materials in sandwich panels.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Fabrication of NH3 gas sensors using lithium-substituted ZnFe2O4 nano-ferrite 用锂取代ZnFe2O4纳米铁氧体制备NH3气体传感器

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-07-14 DOI: 10.1007/s12034-025-03446-x

Hussein I Mahdi, Anaam W Watan, Tagreed M Al-Saadi

{"title":"Fabrication of NH3 gas sensors using lithium-substituted ZnFe2O4 nano-ferrite","authors":"Hussein I Mahdi, Anaam W Watan, Tagreed M Al-Saadi","doi":"10.1007/s12034-025-03446-x","DOIUrl":"10.1007/s12034-025-03446-x","url":null,"abstract":"<div>In this study, metal nitrates were used as precursors and citric acid as a chelating and combustion agent to synthesize lithium-substituted zinc ferrite LixZn1−xFe2O4 (0.00 ≤ x ≤ 0.12) for gas sensing applications that aim to detect small traces of NH3 molecules. The effects of Li-doping on the structural and morphological properties of LixZn1−xFe2O4 nano-ferrite were investigated using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). XRD findings indicated that the synthesized samples formed a pure phase with crystallite sizes ranging from ∼17–28 nm. The preparation process produced spherical particles with high porosity, as confirmed by FESEM images. The grain size of the samples was calculated using the Image J software. The gas response of ZnFe2O4 nano-ferrite with different Li doping at different operating temperatures and a constant NH3 gas concentration was studied. Sensing measurements revealed that Li doping increases the ZnFe2O4-based sensor’s response to NH3 gas. At 200°C, the 0.12 Li–ZnFe2O4 nano-ferrite showed the highest sensitivity. LixZn1−xFe2O4 is a promising candidate to fabricate an ammonia sensor with high performance.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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