Bulletin of Materials Science最新文献_第9页

Synergistic effect of anisotropic ZnO nanoparticle shape on its photocatalytic performance for drug degradation in water 各向异性氧化锌纳米粒子形状对其光催化性能的协同效应，用于降解水中的药物

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-11 DOI: 10.1007/s12034-024-03234-z

Sukesh Kashiram Tumram, Rajdip Bandyopadhyaya

{"title":"Synergistic effect of anisotropic ZnO nanoparticle shape on its photocatalytic performance for drug degradation in water","authors":"Sukesh Kashiram Tumram, Rajdip Bandyopadhyaya","doi":"10.1007/s12034-024-03234-z","DOIUrl":"10.1007/s12034-024-03234-z","url":null,"abstract":"<div>Increasing environmental issues have emerged due to various pharmaceutical wastes. These wastes are difficult to remove by treatment due to their continuous consumption and long-term persistence. We have synthesized two different shapes of zinc oxide (ZnO) nanoparticles as catalysts—nanorod (ZnO–NR) and oval-shape (ZnO–OS). A comparative performance of these two catalyst shapes on photocatalytic degradation of rifampicin (RIF) in water—a first-line anti-tuberculosis drug, was carried out. ZnO–NR showed three times higher normalized first-order degradation rate constant of RIF under UV light than that with ZnO–OS. This is due to: (i) specific surface area and specific pore volume of ZnO–NR being 25 and six times higher, respectively, than ZnO–OS; (ii) oxygen vacancy in ZnO–NR being 1.7 times higher than ZnO–OS; (iii) slightly lower band gap energy in ZnO–NR than ZnO–OS, adding to carrier concentration; and (iv) ZnO–NR additionally showing 12.4% chemisorbed oxygen also. Towards RIF degradation, ZnO–NR shows a much improved synergistic effect than ZnO–OS under UV light, as ZnO–NR under UV light is found to give 2.7 times higher degradation than when the catalyst and UV act independently and hence only additively. Therefore, this study is helpful in tuning the shape-dependent chemical reactivity of nanoparticles in water treatment.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208463","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

Non-enzymatic approach of H2O2 and glucose sensing using NiO–MoS2-derived electrochemical sensor 利用源自 NiO-MoS2 的电化学传感器以非酶方法传感 H2O2 和葡萄糖

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-11 DOI: 10.1007/s12034-024-03291-4

Ankush Medhi, Manas Kumar Giri, D Mohanta

{"title":"Non-enzymatic approach of H2O2 and glucose sensing using NiO–MoS2-derived electrochemical sensor","authors":"Ankush Medhi, Manas Kumar Giri, D Mohanta","doi":"10.1007/s12034-024-03291-4","DOIUrl":"10.1007/s12034-024-03291-4","url":null,"abstract":"<div>At present, selective and accurate determination of hydrogen peroxide (H2O2) and glucose has become essential for routine diagnosis. The present work demonstrates the hydrothermal synthesis of NiO nanosheet (NS)–MoS2-based composite system for non-enzymatic electrochemical detection of H2O2 and glucose. To understand the structure, morphology and elemental constituents of the prepared composite system, various characterization techniques were employed, namely XRD, FTIR, FESEM, TEM and EDX. Redox activity and charge transfer process of the NiO–MoS2-based sensor electrode towards H2O2 and glucose were realized via using electrochemical techniques: cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and chronoamperometry. To be mentioned, limit of detection (LOD) and sensitivity for detection of H2O2 are calculated to be 3 µM and 3925 µA mM−1 cm−2, respectively, under the linear range of 5–455 µM in 0.1 M PBS solution. Similarly, the LOD and sensitivity for sensing glucose is estimated to be 3.53 µM and 1880 µA mM−1 cm−2, respectively, under the linear range of 5–370 µM in 0.1 M NaOH solution. The cost-effective fabricated sensor exhibited good stability with a high selectivity towards the specific analytes only.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208455","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

Effect of morphology on the thermoelectric properties of pure nanostructured zinc oxide 形态对纯纳米结构氧化锌热电性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-11 DOI: 10.1007/s12034-024-03309-x

Rahul Madan, Vikas Kumar, Bajinder Singh, Devendra Mohan

{"title":"Effect of morphology on the thermoelectric properties of pure nanostructured zinc oxide","authors":"Rahul Madan, Vikas Kumar, Bajinder Singh, Devendra Mohan","doi":"10.1007/s12034-024-03309-x","DOIUrl":"10.1007/s12034-024-03309-x","url":null,"abstract":"<div>This article investigates the effect of morphology on the thermoelectric properties of nanostructured zinc oxide. Three different samples of nanostructured zinc oxide, named ZnO, ZnO triethanol amine (TEA) and ZnO Calc., were synthesized. ZnO and ZnO TEA samples were synthesized by the chemical precipitation method, while ZnO Calc. sample was prepared by the direct calcination method. The FESEM analysis revealed that ZnO and ZnO Calc. samples have flakes and nanorod-like morphology, respectively, while ZnO TEA has a mixed hexagonal and irregularly shaped morphology. The Rietveld refinement of X-ray diffraction data confirmed that all the prepared samples have a hexagonal wurtzite phase of ZnO with space group P63mc. The energy-dispersive X-ray spectroscopy confirmed the presence of zinc and oxygen in all the synthesized samples. The electrical resistivity and Seebeck coefficient were recorded in the temperature range of 300–950 K. The negative values of the Seebeck coefficient revealed the n-type nature of all the samples. The increase in electrical resistivity with the increase in temperature confirmed that all three prepared ZnO samples show metallic behaviour. The highest Seebeck coefficient of –245 μV K–1 was attained by ZnO nanorods at 950 K, while the lowest Seebeck coefficient of –212 μV K–1 was obtained for ZnO TEA at 950 K. The highest thermoelectric power factor of 2.11 (times , {10}^{-3}) W m–1 K–2 was attained by the ZnO Calc. sample at 950 K. The results indicate that the synthesized ZnO Calc. sample with nanorod-like morphology has better thermoelectric performance as compared to flakes and platelets-like morphology.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208457","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

Preparation and properties of electrochemically assisted electroless Ni–P–TiO2–NG composite coatings 电化学辅助无电解 Ni-P-TiO2-NG 复合涂层的制备与性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-05 DOI: 10.1007/s12034-024-03325-x

Guanghui Zhao, Chunyu Ma, Ruiteng Wang, Penghui Liu, Nan Zhou, Fuwen Qin, Qingyu Zhang

{"title":"Preparation and properties of electrochemically assisted electroless Ni–P–TiO2–NG composite coatings","authors":"Guanghui Zhao, Chunyu Ma, Ruiteng Wang, Penghui Liu, Nan Zhou, Fuwen Qin, Qingyu Zhang","doi":"10.1007/s12034-024-03325-x","DOIUrl":"10.1007/s12034-024-03325-x","url":null,"abstract":"<div>Inspired by NG/TiO2 composite reinforcing particles in the Ni–P matrix, an electrochemically assisted electroless deposition method was used to deposit Ni–P–TiO2–NG composite coatings on steel substrates in order to enhance their electrochemical and photocatalytic properties. The effects of current density on the microstructure, surface morphology and phase composition of the coatings were investigated. Statistical analysis based on multifractal formalism shows that the uniformity of the height distribution shows an increasing and then a decreasing trend as the current density increases. The results show that the average hardness reached a maximum value of 966 HV0.1 for the optimum coating obtained at a current density of 4 A dm–2, the corrosion current reached a minimum value of 2.041 × 10–5 A cm–2, with a maximum corrosion potential of –0.281 V vs. SCE. These improvements can be attributed to high phosphorus Ni–P composite coatings with smooth and dense morphology, TiO2/NG nanocomposite impermeability and excellent mechanical properties. In addition, the photocatalytic activity of the Ni–P–TiO2–NG coating gradually increases with increasing current density.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208460","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

Environment-friendly approach to rGO–TMD composite synthesis for use as a supercapacitor 用作超级电容器的 rGO-TMD 复合材料的环保型合成方法

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-05 DOI: 10.1007/s12034-024-03310-4

Ragini Chaturvedi, Amit Garg

{"title":"Environment-friendly approach to rGO–TMD composite synthesis for use as a supercapacitor","authors":"Ragini Chaturvedi, Amit Garg","doi":"10.1007/s12034-024-03310-4","DOIUrl":"10.1007/s12034-024-03310-4","url":null,"abstract":"<div>Owing to their characteristics like fast charge–discharge rate, very long life, simple geometry and eco-friendly nature, supercapacitor is an emerging technology to fulfil the present and future requirements of the energy. The performance of a supercapacitor is derived from the composition and morphology of the electrode. 2D materials possess various excellent structural properties like surface area, flexibility in the atomic scale dimension and mechanical strength with high electrical conductivity. This makes them an entrusted material to be used as an electrode material. The teaming of 2D materials and layered transition metal dichalcogenides have been of great interest for electrode materials. In this study, the reduction of graphene oxide is done by an environment-friendly synthesis method using cow urine, and then, synthesizing the reduced graphene oxide (rGO) and transition metal dichalcogenides (TMD) composite using the refluxing method. The modified pencil graphite electrode (PGE) was functionalized using the above composite and the performance is comparable to that of glassy carbon electrode. Our main motive was to develop a low-cost, sustainable and highly effective MoS2–rGO/PGE, which is completely based on an environment and eco-friendly method using natural precursors. The prepared MoS2–rGO nanocomposite was characterized by XRD, SEM and EDX, which revealed the formation as well as its morphological scenario. MoS2–rGO/PGE is explored as electrode material by electrochemical characterization with the 3-electrode system through cyclic voltammetry and electrochemical impedance spectroscopy, which exhibit maximum specific capacitance with good cycle stability.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208459","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

Enhancing supercapacitor, photovoltaic and magnetic properties of SnO2 nanoparticles doped with Cu and Zn ions 增强掺杂铜和锌离子的二氧化锡纳米粒子的超级电容器、光伏和磁性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-05 DOI: 10.1007/s12034-024-03293-2

Mohd Arif Dar, Haridharan Neelamegan, V J Priyadharshini, S Rafi Ahamed, P Arularasan, Madhulika Mishra, Aafaq A. Rather

引用次数: 0

Increased lithium-ionic conductivity with Nb- and Ta-doping in garnet-structured solid electrolyte oxides 在石榴石结构的固体电解质氧化物中掺入 Nb 和 Ta 提高锂离子电导率

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-28 DOI: 10.1007/s12034-024-03275-4

S Siddiqui, D Singh, B Singh

{"title":"Increased lithium-ionic conductivity with Nb- and Ta-doping in garnet-structured solid electrolyte oxides","authors":"S Siddiqui, D Singh, B Singh","doi":"10.1007/s12034-024-03275-4","DOIUrl":"10.1007/s12034-024-03275-4","url":null,"abstract":"<div>Garnet-type oxide materials show high Li-ion conductivity and may be used as solid-state electrolytes in lithium-ion batteries to address safety concerns. In this study, Nb-doped Li7Nd2.8Ca0.2Zr1.8Nb0.2O12 (LNdCZNbO) and Ta-doped Li7Nd2.8Ca0.2Zr1.8Ta0.2O12 (LNdCZTaO) garnet-type compositions were prepared to examine the impact of Nb- and Ta-doping on ionic conductivity of Li7Nd3Zr2O12 (LNdZO). XRD patterns showed the crystallization of major phase of these garnet-structured oxides in tetragonal symmetry. Impedance measurements were recorded from room temperature to 450°C using a Novocontrol make impedance analyzer (Alpha-A high-performance frequency analyzer) in the frequency range of 1 Hz–40 MHz. The maximum total conductivity of parent composition LNdZO was 5.12 × 10−5 S cm−1 at 25°C. The compositions of LNdCZNbO and LNdCZTaO showed conductivity 7.05 × 10−4 and 8.23 × 10−4 S cm−1, respectively, at 25°C. On higher temperature of 350°C, these doped compositions, LNdCZNbO and LNdCZTaO, showed enhanced conductivity of 3.30 × 10−3 and 2.63 × 10−3 S cm−1, respectively, as compared to the parent LNdZO composition’s conductivity of 4.42 × 10−4 S cm−1. Analysis of the Cole–Cole plots fitting showed the nature of Li ionic conduction and the existence of bulk and grain boundary impedances in these compositions. The activation energy was found to be higher for the compositions of LNdCZNbO (0.18 ± 0.01 eV) and LNdCZTaO (0.17 ± 0.01 eV) in comparison with the activation energy of undoped composition Li7Nd3Zr2O12 (0.14 ± 0.00 eV) due to the change in garnet lattice by doping of Ca and Nb/Ta.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208461","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

Improved electron transport in planar perovskite solar cells using TiO2, SnO2 and WO3 ultra-thin layers: a comparison on all single layer and bilayer structures 使用 TiO2、SnO2 和 WO3 超薄层改善平面过氧化物太阳能电池中的电子传输：所有单层和双层结构的比较

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-27 DOI: 10.1007/s12034-024-03170-y

Mozhgan Kazemzadeh Otoufi, Ahmad Kermanpur

{"title":"Improved electron transport in planar perovskite solar cells using TiO2, SnO2 and WO3 ultra-thin layers: a comparison on all single layer and bilayer structures","authors":"Mozhgan Kazemzadeh Otoufi, Ahmad Kermanpur","doi":"10.1007/s12034-024-03170-y","DOIUrl":"10.1007/s12034-024-03170-y","url":null,"abstract":"<div>To achieve high performance in perovskite solar cells (PSCs), it is very vital to engineer the recombination and extraction of the hole–electron pairs at the electron transport layer (ETL)/perovskite interface. In this research, the main idea is to improve the photovoltaic performance of the cells by modifying the compact ETL surface (≈50 nm thick) by inserting a <10 nm thick ultra-thin layer (UTL) of metal oxide. For this purpose, all types of single layer and bilayer structured ETLs of TiO2, SnO2 and WO3, i.e., three common metal oxide electron transport materials in PSCs, were fabricated using the reproducible and industry-compatible radio-frequency sputtering method and their function as ETLs was then compared. These ETLs and cells were characterized for structural and electrical properties by FESEM, XRD, Mott–Schottky analysis, UV–Vis spectroscopy and J–V measurements. It was found that a significant increase in cell efficiency is achieved due to more efficient energy band alignment using the bilayer structures of TiO2/WO3-UTL, SnO2/WO3-UTL and TiO2/SnO2-UTL. Conversely, reduced efficiency is observed when using their inverted structures, namely WO3/TiO2-UTL, WO3/SnO2-UTL and SnO2/TiO2-UTL. These results suggest a simple and promising strategy to increase the efficiency of photovoltaic devices.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208465","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

An investigation on the corrosion behaviour of B4C-reinforced AA5083 aluminium alloy in sodium chloride solution using electrochemical impedance spectroscopy 使用电化学阻抗光谱法研究 B4C 增强 AA5083 铝合金在氯化钠溶液中的腐蚀行为

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-27 DOI: 10.1007/s12034-024-03262-9

Kourosh Jafarzadeh, Hamed Ansari Ashlaghi, Ali Alizadeh, Hadiseh Mazhari Abbasi

{"title":"An investigation on the corrosion behaviour of B4C-reinforced AA5083 aluminium alloy in sodium chloride solution using electrochemical impedance spectroscopy","authors":"Kourosh Jafarzadeh, Hamed Ansari Ashlaghi, Ali Alizadeh, Hadiseh Mazhari Abbasi","doi":"10.1007/s12034-024-03262-9","DOIUrl":"10.1007/s12034-024-03262-9","url":null,"abstract":"<div>In this research, the role of B4C-reinforcing particles on the corrosion behaviour of Al5083/B4C nanocomposite has been investigated. Al/B4C nanocomposite powder with weight percentages of 3 and 7 of reinforcing phase was prepared by mechanical milling method. The resulting powder was initially hot-pressed and then hot-extruded. The microstructure of the sample was studied using scanning electron microscopy and their corrosion behaviour was studied using potentiodynamic polarization and scanning electrochemical impedance spectroscopy methods in different immersion time intervals. The results showed a uniform distribution of reinforcing particles and also the scattering of intermetallic particles at the surface of the samples. However, increasing the content of B4C particles in the composite samples enhances the cathodic and anodic reactions by increasing the content of intermetallic particles as cathodic sites on the surface, so that higher corrosion current density is observed in the composite samples with 7 wt% B4C. Finally, it was concluded that increasing the value of B4C decreases the corrosion resistance of the B4C-reinforced composite samples in sodium chloride solution, which makes it unsuitable in marine applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208464","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

Effect of free energy on the solid solubility and magnetic behaviour of a mechanically alloyed nanocrystalline Cu–Co–Ti alloy 自由能对机械合金化纳米铜-铜-钛合金固溶性和磁性的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-27 DOI: 10.1007/s12034-024-03312-2

Sumit Chabri, Sayan Samanta, Goutam Roy, Akhtarujjaman Sarkar, Supriya Bera

引用次数: 0