Journal of Nanomaterials最新文献_第9页

Antimicrobial Properties of Nanofiber Membrane and Commercial Micromembrane by Modification with Diethylenetriamine (DETA) and Attachment of Silver Nanoparticles 二乙基三胺(DETA)改性纳米纤维膜和商用微膜的抗菌性能

4区材料科学

Journal of Nanomaterials Pub Date : 2023-06-01 DOI: 10.1155/2023/8927774

Izabela J. Gallus, Evren Boyraz, J. Maryska

{"title":"Antimicrobial Properties of Nanofiber Membrane and Commercial Micromembrane by Modification with Diethylenetriamine (DETA) and Attachment of Silver Nanoparticles","authors":"Izabela J. Gallus, Evren Boyraz, J. Maryska","doi":"10.1155/2023/8927774","DOIUrl":"https://doi.org/10.1155/2023/8927774","url":null,"abstract":"Water demand is steadily increasing, and usable water supply is constantly decreasing. It is urgent to find a cheap and efficient way to recycle water. Currently, membrane technologies are getting promising results, but some factors drastically reduce their effectiveness. In membrane filtration, biofouling is one of the most limiting factors, reducing filtration efficiency. In this work, the micro- and nanofibres-composed membranes were modified with diethylenetriamine (DETA), and silver nanoparticles were attached to a modified surface to minimize biofouling risk during filtration. Different conditions were tested for reaction with DETA and attachment of nanoparticles. Antimicrobial tests were performed, and the leaching of nanoparticles over time was checked. The modified membranes (Nadir® MV020T and PA PVDF) containing silver nanoparticles ranging in size from 20 to 50 nm showed antibacterial properties against Escherichia coli in the form of 3–4 mm inhibitory zones. The percentage of released AgNPs was 0.47% and 2.12% for Nadir® MV020T and PA PVDF membrane after 21 days, respectively. Polyvinylpyrrolidone was used to increase the stability of the nanoparticles, and the results were compared.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88247033","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 the Mechanical Properties of AZ31D Alloy by Reinforcing Nanosilicon Carbide/Graphite 纳米碳化硅/石墨增强AZ31D合金的力学性能

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-22 DOI: 10.1155/2023/6553200

I. Veeranjaneyulu, V. Chittaranjan Das, Srikanth Karumuri

引用次数: 1

ZnO Nanoparticles Synthesized using Aerial Extract of Ranunculus multifidus Plant: Antibacterial and Antioxidant Activity 毛茛空中提取物合成氧化锌纳米颗粒的抗菌和抗氧化活性研究

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-21 DOI: 10.1155/2023/8825762

Terfo Yilma, Mikyas Kassaw, H. Murthy, A. Dekebo

{"title":"ZnO Nanoparticles Synthesized using Aerial Extract of Ranunculus multifidus Plant: Antibacterial and Antioxidant Activity","authors":"Terfo Yilma, Mikyas Kassaw, H. Murthy, A. Dekebo","doi":"10.1155/2023/8825762","DOIUrl":"https://doi.org/10.1155/2023/8825762","url":null,"abstract":"The present work reports the synthesis of zinc oxide nanoparticles (ZnO NPs) by applying an aqueous aerial extract of Ranunculus multifidus plant. The thermogravimetric analysis revealed that the prepared ZnO NPs are stable from 480 to 800°C. The diffraction study confirmed the hexagonal wurtzite structure for the synthesized ZnO NPs with the typical crystallite sizes of 47.92, 22.70, and 15.35 nm the volume ratios (extract to precursor) of 1 : 1, 3 : 2, and 2 : 3, respectively. The experimentally deduced Eg values are 1.82, 3.1, and 2.57 eV for 1 : 1, 3 : 2, and 2 : 3 ZnO NPs, respectively. The spherical and rod-like morphologies were confirmed for the NPs by the images taken using electron microscopy. The reducing agents in the aqueous extracts of R. multifidus converted the ionic zinc to zinc nanoparticles, and these NPs exhibit credible antibacterial effects against tested bacterial species. The biosynthesized ZnO NPs revealed significant antibacterial activity against Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. The order of the antibacterial potential of the NPs was found to follow the order: S. aureus (17.10 ± 0.45 mm) > B. subtilis (16.10 ± 0.15 mm) > E. coli (14.5 ± 0.32 mm) > P. aeruginosa (13 ± 0.0 mm). The antioxidant activities of the produced ZnO NPs in various ratios showed the potentiality of phytochemicals to scavenge the free radicals, which is encouraging for the discovery of novel compounds for the treatment of cancer diseases.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80717003","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: 1

Characteristics and Electrochemical Performance of Hydroxyl-Functionalized Graphene Quantum Dot-Coated Si Nanoparticles/Reduced Graphene Hybrid Anodes for Advanced Li-Ion Batteries 先进锂离子电池用羟基功能化石墨烯量子点包覆纳米硅/还原石墨烯复合阳极的特性及电化学性能

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-18 DOI: 10.1155/2023/6353894

Angelica Martino, Ruye Cong, Minsang Jo, Hyun-Ho Park, Hochun Lee, Chang-Seop Lee

{"title":"Characteristics and Electrochemical Performance of Hydroxyl-Functionalized Graphene Quantum Dot-Coated Si Nanoparticles/Reduced Graphene Hybrid Anodes for Advanced Li-Ion Batteries","authors":"Angelica Martino, Ruye Cong, Minsang Jo, Hyun-Ho Park, Hochun Lee, Chang-Seop Lee","doi":"10.1155/2023/6353894","DOIUrl":"https://doi.org/10.1155/2023/6353894","url":null,"abstract":"By powering sophisticated lithium-ion batteries (LIBs), silicon/carbon (Si/C) composites have the potential to accelerate the sustainable energy transition. This is a first-of-its-kind Si/C hybrid with hydroxyl-functionalized graphene quantum dots (OH-GQD) electrostatically assembled within interconnected reduced graphene oxide networks (OH-GQD@Si/rGO) prepared through solution-phase ultrasonication and subsequent one-step, low-temperature annealing and thermal reduction. The OH-GQD@Si/rGO hybrid utilized as the LIB anode delivered a high initial specific capacity of 2,229.16, 1,303.21, and 1,090.13 mAh g−1 reversible capacities at 100 mA g−1 after 50 and 100 cycles, and recovered 1,473.28 mAh g−1 at rates as high as 5 A g−1. The synergistic benefits of the OH-GQD/rGO interface give dual, conductive carbon protection to silicon nanoparticles. Consecutive Si surface modifications improved Si–rGO contact modes. The initial OH-GQD carbon coating increased storage capacity through vacancy defects changing the electron density in the lattice, whereas hydroxyl functionality at the edges acted as active storage sites. Secondary protection through rGO encapsulation improved Si conductivity and usage by providing continuous electron/ion routes while minimizing Si volume variations. The proposed OH-GQD/rGO hybridization as a dual-carbon protection strategy to Si stabilized the solid electrolyte interface leading to electrode stability. This work is expected to advance the development of next-generation Si-based LIB anodes.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84855300","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

Analyze the Mechanical Characteristics of Fabricated MMCs on Nanocarbon Influencing with Polymer Composites 分析纳米碳对聚合物复合材料影响下制备的mmc的力学特性

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-17 DOI: 10.1155/2023/5985188

N. Vinayaka, Anil Kumar Bodukuri, G. Jadhav, N. Padmamalini, S. Pandey, M. Balasubramanian, J. Immanuel Durai Raj, M. Suresh Kumar, Balkeshwar Singh

{"title":"Analyze the Mechanical Characteristics of Fabricated MMCs on Nanocarbon Influencing with Polymer Composites","authors":"N. Vinayaka, Anil Kumar Bodukuri, G. Jadhav, N. Padmamalini, S. Pandey, M. Balasubramanian, J. Immanuel Durai Raj, M. Suresh Kumar, Balkeshwar Singh","doi":"10.1155/2023/5985188","DOIUrl":"https://doi.org/10.1155/2023/5985188","url":null,"abstract":"The intention of this research is to recapitulate the two different fillers like E glass fiber and nanocarbon fiber, which were utilized to fabricate the polymer matrix composites by the assistance of epoxy resin. The mechanical compression molding was influenced to produce the polymer-based nanocomposites under consideration of optimal process parameters. There are three different weight fractions E glass fiber (40%, 45%, and 50%), nanocarbon fiber (10%, 15%, and 20%), and epoxy concentrations (30%, 40%, and 50%), respectively, that were used to produce the polymer matrix composites. Those processing parameters were designed by the L9 Taguchi with DOE technique to conduct the mechanical tests like tensile strength and hardness properties. The signal-to-noise ratios were successfully accomplished to identify optimal process parameters for improving the individual responses. The ANOVA and interaction was additional supports to enhance the mechanical properties. The scanning electron microscope was used to examine the fracture surfaces at the tensile fracture specimens with optimal conditions. Moreover, the maximum mechanical characteristics were attained by the increasing of nanocarbon fiber in the processed polymer matrix composites.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"130 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75677020","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 and Experimental Estimation of Mechanical Properties of Kevlar-Glass/Epoxy Interwoven Composite Laminate 芳纶-玻璃/环氧交织复合层压板的制备及力学性能的实验评价

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-16 DOI: 10.1155/2023/1055071

J. Joshua, Dalbir Singh, Sai Hemanth Kumar Vennelakanti, P. Sivaprakasam, D. R. Joseph, P. S. Venkatanarayanan

{"title":"Fabrication and Experimental Estimation of Mechanical Properties of Kevlar-Glass/Epoxy Interwoven Composite Laminate","authors":"J. Joshua, Dalbir Singh, Sai Hemanth Kumar Vennelakanti, P. Sivaprakasam, D. R. Joseph, P. S. Venkatanarayanan","doi":"10.1155/2023/1055071","DOIUrl":"https://doi.org/10.1155/2023/1055071","url":null,"abstract":"Hybrid composites made of natural and synthetic fibers are stronger, lighter, cheaper, biodegradable, and greener than conventional metals, and they are replacing conventional metals. The primary objective of the study was to examine the mechanical properties of interwoven hybrid composite laminates. Kevlar and glass fiber are used as reinforcement for this work. The fibers are woven together using various weaving techniques. 1 × 1, 3 × 3, and 5 × 5 weaving patterns are considered to explore the properties of the laminates. The composites are woven using a conventional handloom method. As a matrix, LY556 resin and HY951 hardener are combined at a ratio of 10 : 1. The composites are cured using compression molding. The cured composites are assessed for their tensile strength, flexural strength, compressive strength, interlaminar shear strength, impact strength, and fracture toughness. The highest tensile, compressive, and flexural strength were found in the 1 × 1 pattern, shear strength and fracture toughness were found in the 5 × 5 pattern, which finds applications in aerospace and defense sectors, and 3 × 3 dominated in impact strength; as a result, it can be used in bulletproof applications. At last, a scanning electron microscope (SEM) was used to visualize the matrix-reinforcement bonding. The microscopic images show the ripped-out fibers because of the tensile test. The shards in SEM are evident that impact force breaks the matrix elements in a brittle manner.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87641757","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

Influence of Deposition Parameters for Cu2O and CuO Thin Films by Electrodeposition Technique: A Short Review 电沉积工艺对Cu2O和CuO薄膜沉积参数的影响

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-15 DOI: 10.1155/2023/8987633

E. Arulkumar, Sethuramachandran Thanikaikarasan, Nega Tesfie

引用次数: 0

Rice Bran Oil-Fueled IC Engine Performance and Emission Characteristics Improved by Nanoadditives 纳米添加剂改善米糠燃油内燃机性能及排放特性

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-12 DOI: 10.1155/2023/7341542

J. Renuraman, K. Yoganand, P. Arunraj, M. Subramanian, Elangomathavan Ramaraj

{"title":"Rice Bran Oil-Fueled IC Engine Performance and Emission Characteristics Improved by Nanoadditives","authors":"J. Renuraman, K. Yoganand, P. Arunraj, M. Subramanian, Elangomathavan Ramaraj","doi":"10.1155/2023/7341542","DOIUrl":"https://doi.org/10.1155/2023/7341542","url":null,"abstract":"In day-to-day life, fossil fuels play an important role in transportation and power generation. The consumption of fossil fuels increasing rapidly with increase in emission from engines. Due to habituation over fossil fuel, both the economy and environment are suffering. The researchers are in the position to find the best alternative for fossil fuels. The employment of biodiesel is taken to be the classy replacement for this snag. According to scores of research, using additions of nanoparticle is the greatest way to control emissions and improve engine performance. Here the assessment was employed though rice bran (RB) oil, rice bran oil blended with aluminum oxide (RB Al2O3), and rice bran oil blended with cerium oxide (RB CeO2). Rice bran oil is extracted and converted into biodiesel by transesterification process. And the nanoadditives are prepared using the two-step method. The addition of nanoadditives showed an improved performance in the engine as well as emission parameters. The congruent assessment clearly demonstrates the improvement of brake thermal efficiency by around 28% for RB-Al2O3 and an improved brake-specific fuel of 16%. Both the blends exhibit good part loading traits.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77718669","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

Characterization and Superhydrophobic Anticorrosive Coating of AA-7475/ZrO2/Polymer Nanocomposites AA-7475/ZrO2/聚合物纳米复合材料的表征及超疏水防腐涂层

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-10 DOI: 10.1155/2023/8936855

Anil Kumar Bodukuri, A. Kolekar, R. Pandey, Koli Gajanan Chandrashekhar, P. Ram Kumar, K. Anandan, C. Devanathan, Shubhajit Halder, Balkeshwar Singh

{"title":"Characterization and Superhydrophobic Anticorrosive Coating of AA-7475/ZrO2/Polymer Nanocomposites","authors":"Anil Kumar Bodukuri, A. Kolekar, R. Pandey, Koli Gajanan Chandrashekhar, P. Ram Kumar, K. Anandan, C. Devanathan, Shubhajit Halder, Balkeshwar Singh","doi":"10.1155/2023/8936855","DOIUrl":"https://doi.org/10.1155/2023/8936855","url":null,"abstract":"An AA-7475 is coated with superhydrophobic (SH) polymer nanocomposites (PNCs), emphasizing the coating’s manufacturing, characterization, and anticorrosive qualities. Coating AA-7475 alloy with polyvinyl chloride (PVC), copper stearate (CS), and zirconium oxide (ZrO2) nanoparticles produces the desired superhydrophobic. Using an X-ray diffractometer, field-emission scanning electron microscopy, Fourier-transform infrared spectrometer, ZrO2 nanoparticles, CS, and PVC PNCs are analyzed structurally and molecularly. The atomic force microscope picture was analyzed to determine how the surface roughness affected the SH behavior reached by changing the weight percentage of ZrO2 nanoparticles from 0.6 to 3.0 wt%. PNC-5 with 3.0 wt% ZrO2 nanoparticles is used as resistance to corrosion coating for AA-7475 due to its water contact angle of 154°. In a 3.5% NaCl solution, uncoated and PNC-5-coated AA-7475 are examined using potentiodynamic polarization and electrochemical spectroscopy. PNC-5 coating reduces AA-7475 corrosion rate from 23.75 to 0.2253 mpy. In this study, we use polarization resistance, corrosion resistance efficiency, double layer capacitance, corrosion current density, and charge transfer resistance to demonstrate that the SH surface air trapping phenomena are responsible for effective corrosion resistance.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73804941","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

Analysis of MRR, Thrust Force, and Torque in Drilling Al/BN/Al2O3 Composites using Hybrid Grey–Taguchi Technique 基于灰色-田口混合技术的Al/BN/Al2O3复合材料钻削的MRR、推力和扭矩分析

4区材料科学

Journal of Nanomaterials Pub Date : 2023-05-10 DOI: 10.1155/2023/8175140

S. Senthil babu, C. Dhanasekaran, A. Parthiban, N. Vasudevan, Addis Mekonnen

{"title":"Analysis of MRR, Thrust Force, and Torque in Drilling Al/BN/Al2O3 Composites using Hybrid Grey–Taguchi Technique","authors":"S. Senthil babu, C. Dhanasekaran, A. Parthiban, N. Vasudevan, Addis Mekonnen","doi":"10.1155/2023/8175140","DOIUrl":"https://doi.org/10.1155/2023/8175140","url":null,"abstract":"The demand for hybrid composite materials has been expanding globally in all kinds of mechanical industries. Drilling is one of the basic operations required in manufacturing of various components and choosing optimum parameters of drilling is vital for getting good quality holes. The main objective of our work is to determine the ideal parameters of drilling and tool coatings required to minimize the thrust force and torque in drilling and to maximize the material removal rate (MRR) using Grey–Taguchi technique. Hybrid composite specimen made by reinforcing Al7075 alloy with 4% of aluminum oxide and 2% of boron nitride in stir casting process and drilling was carried out in a sequence at different drilling feed rates (40, 80, and 120 mm/min) and spindle speeds (1,200, 2,400, and 3,600 rpm) in a vertical machining center attached with drill tool dynamometer, using twist drills of diameter 5 mm and point angle 118° made of uncoated carbide, diamond-like carbon (DLC)-coated carbide and high carbon (HC)-coated carbide. The recorded thrust force and torque from the dynamometer and the computed MRRs during each drilling operation are tabulated as per Taguchi’s L27 orthogonal array and the results are analyzed using hybrid Grey–Taguchi technique. In our analysis, the optimum thrust force of 62.12 N and torque of 0.766 Nm were obtained when using a DLC-coated tool at a maximum speed of 3,600 rpm and minimum feed rate of 40 mm/min. An optimum MRR of 178.79 mm3/s was obtained while using DLC coated at a maximum speed of 3,600 rpm and a maximum feed rate of 120 mm/min.","PeriodicalId":16442,"journal":{"name":"Journal of Nanomaterials","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85324395","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