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Madridge Journal of Nanotechnology & Nanoscience最新文献

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Linear Optical Constants of Polyvinylidene Fluoride/Praseodymium Oxide Nanocomposite Films in the Ferroelectric Phase 聚偏氟乙烯/氧化镨纳米复合膜的铁电相线性光学常数
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2021-12-13 DOI: 10.18689/mjnn-1000134
Arun Kuzhivelil Joseph
{"title":"Linear Optical Constants of Polyvinylidene Fluoride/Praseodymium Oxide Nanocomposite Films in the Ferroelectric Phase","authors":"Arun Kuzhivelil Joseph","doi":"10.18689/mjnn-1000134","DOIUrl":"https://doi.org/10.18689/mjnn-1000134","url":null,"abstract":"In the present investigation, the pristine and Praseodymium oxide (Pr 2 O 3 ) nanoparticle embedded polyvinylidene fluoride (PVDF) thick films were fabricated via solution casting/intercalation technique. PVDF/ Pr 2 O 3 nano composite film has been fabricated aiming its use in ferroelectric memory devices and in the development of biomedical sensors. The Pr 2 O 3 nano particles were synthesized by the hydrothermal technique, being a versatile and easy method for obtaining size controlled nanoparticles. The Fourier Transform Infrared Spectroscopy (FTIR) has been recorded in the range 400 to 4000 cm-1, and functional groups were identified in the nanocomposite films. Infrared vibrational spectroscopy (FTIR + Raman) curves revealed the presence of ferroelectric β-phase in the annealed nanocomposite films intrinsically. All-important optical constants have been determined for the first time via UV-VIS transmission spectroscopy for the nanocomposite films in the ferroelectric phase.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115470812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Modelling of Acoustic Waves in Semiconductor in Contact with Thermally Conducting Fluid 与导热流体接触的半导体中声波的建模
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2021-12-10 DOI: 10.18689/mjnn-1000133
I. Sharma
{"title":"Modelling of Acoustic Waves in Semiconductor in Contact with Thermally Conducting Fluid","authors":"I. Sharma","doi":"10.18689/mjnn-1000133","DOIUrl":"https://doi.org/10.18689/mjnn-1000133","url":null,"abstract":"The present article is aimed at an investigation of the propagation of elasto-thermodiffusive (ETN) surface waves in a homogenous isotropic, thermally conducting, semiconductor material half-space underlying a thermally conductive viscous or inviscid liquid layer of finite thickness (d) with varying temperature. The relaxation times of heat and charge carrier fields are also taken into consideration during the study. Secular equation that governs the propagation of elasto-thermodiffusive surface (interfacial) waves in the considered composite structures has been derived in compact form after obtaining general wave solution of the model. Some particular forms of the general secular equation are also deduced and investigated. Numerical solution of secular equation and other relevant relations is carried out for germanium ( Ge ) and silicon (Si) semiconductor material under different situations with the help of functional iteration numerical technique along with irreducible case of Cardano’s method.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117225648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mesoporous Materials as Catalyst support for Wastewater Treatment 介孔材料作为废水处理的催化剂载体
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-06-18 DOI: 10.18689/MJNN-1000132
Qiqi Ding, Xijun Hu
{"title":"Mesoporous Materials as Catalyst support for Wastewater Treatment","authors":"Qiqi Ding, Xijun Hu","doi":"10.18689/MJNN-1000132","DOIUrl":"https://doi.org/10.18689/MJNN-1000132","url":null,"abstract":"The scarcity of water resources has stimulated the exploration of sewage treatment technique. On account of flexible separation and recycling, heterogeneous catalysis has aroused strong interest among researchers. In terms of the specific surface area, pore dimension and catalytic sites distribution, porous materials hold infinite potentials in heterogeneous catalysis. Among different porous materials, mesoporous material is most favorable in aqueous system. Moderate diffusion flux and highly efficient mass transfer are achievable due to their appropriate pore dimension, high specific surface area and good organic adsorption capacity. Moreover, most kinds of mesoporous materials are non-toxic, environmental-friendly and highly stable in both acidic and basic conditions. In this review, several kinds of mesoporous materials (such as siliceous mesoporous materials, carbonaceous mesoporous materials and metallic mesoporous materials) are introduced involving their characteristics, advantages, disadvantages as well as their application in wastewater treatment.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129915707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Structural, Thermal and Chemical Properties of Co-Cr Fe2O4 Nanocomposite Synthesized by Combustion Method 燃烧法制备Co-Cr - Fe2O4纳米复合材料的结构、热性能及化学性能
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-06-03 DOI: 10.18689/mjnn-1000131
C. A. Harihar, H. Basavaraj, B. Guruswamy, N. Mohan, K. Harish, Y. Sangappa, R. Madhukumar
{"title":"Structural, Thermal and Chemical Properties of Co-Cr Fe2O4 Nanocomposite Synthesized by Combustion Method","authors":"C. A. Harihar, H. Basavaraj, B. Guruswamy, N. Mohan, K. Harish, Y. Sangappa, R. Madhukumar","doi":"10.18689/mjnn-1000131","DOIUrl":"https://doi.org/10.18689/mjnn-1000131","url":null,"abstract":"Published by Madridge Publishers Abstract Co-Cr Fe2O4 Nanocomposite were synthesized by solution combustion method and synthesized powder were characterized by X-Ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and Thermal Properties (DSC). The XRD results confirm the cubic spinel structure of the ferrites and crystalline size (D) found the range of 40-50nm. The FTIR measurement between 400 – 4000 cm-1confirm the absorption bands in the Spectrum. Further, Thermogravimetric analysis and differential scanning calorimetry were used to investigate the phase transition and melting point of the prepared samples respectively. Agglomeration of particles was observed in the scanning electron microscopy (SEM) images. The results underline the effect of preparation conditions on the morphology, crystallite size, and thermal properties of nano ferrites.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131661891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Emerging Nanomedicine Prospect 新兴的纳米医学前景
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-05-16 DOI: 10.18689/MJNN-1000130
W. Paul, C. Sharma
{"title":"The Emerging Nanomedicine Prospect","authors":"W. Paul, C. Sharma","doi":"10.18689/MJNN-1000130","DOIUrl":"https://doi.org/10.18689/MJNN-1000130","url":null,"abstract":"","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125453913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Reliable Device Topology for ZnO Nanowire-based Gas Sensors 基于ZnO纳米线的气体传感器的可靠器件拓扑
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-05-15 DOI: 10.18689/mjnn-1000129
Bruce C. Kim, Anurag Gupta
{"title":"A Reliable Device Topology for ZnO Nanowire-based Gas Sensors","authors":"Bruce C. Kim, Anurag Gupta","doi":"10.18689/mjnn-1000129","DOIUrl":"https://doi.org/10.18689/mjnn-1000129","url":null,"abstract":"The frontiers of research are rapidly advancing in the area of nanowire-based sensors, which are being used for a breadth of applications. ZnO nanowires-based sensors have shown tremendous potential in the area of chemical and biological sensing but the performance of these sensors are contingent upon the successful design and packaging of sensing platform. Therefore, in this work two distinct device topologies, single ZnO nanowire device and ZnO nanowire-based array device, have been fabricated and compared for their sensing performance. The single nanowire device has been fabricated through focused ion beam and e-beam lithography techniques while SEM and EDAX analysis have been used to characterize the device. I-V characteristics of the ZnO nanowire-based array devices have been measured through a semiconductor parameter analyzer and a prospective device refresh strategy through thermal cycling has been outlined.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115207564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PVDF based Nanocomposite Membranes: Application towards Wastewater treatment PVDF基纳米复合膜在污水处理中的应用
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-05-08 DOI: 10.18689/mjnn-1000128
Nida Salim, A. Siddiqa, S. Shahida, S. Qaisar
{"title":"PVDF based Nanocomposite Membranes: Application towards Wastewater treatment","authors":"Nida Salim, A. Siddiqa, S. Shahida, S. Qaisar","doi":"10.18689/mjnn-1000128","DOIUrl":"https://doi.org/10.18689/mjnn-1000128","url":null,"abstract":"Water is precious natural resource on earth but rapid industrialization and effluent discharge from domestic, agriculture and municipal wastes is polluting water continuously. Membrane technology provide solution to water related problems and used as an attractive tool for removal of pollutants from water. Different types of polymeric membranes are used for wastewater treatment but certain drawbacks are related to polymeric membranes such as hydrophobicity, fouling and low mechanical strength. Incorporation of nanoparticle in polymeric membranes enhances the membrane properties. Recently nanocomposite membranes are developed that increased hydrophilicity, improved mechanical properties and enhanced rejection efficiencies of polymeric membranes. Among different types of polymeric membranes, polyvinylidene fluoride nanocomposites membranes are widely used for removing various contaminants from wastewater. It is reported that polyvinylidene fluoride based nanocomposite membranes possess good separation efficiency for the removal of different pollutants. In this review several polyvinylidene fluoride membranes incorporated with metal oxide such as titanium dioxide, aluminium oxide, silicon oxide, zinc oxide, carbon nanotubes and graphene oxide based nanocomposite membranes have been discussed for wastewater treatment. The current study objective is to summarize the applications of polyvinylidene fluoride based nanocomposite membranes for the removal of different pollutants from wastewater.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130249083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Antimicrobial activity of Chemically Synthesized Sn and Sr Doped Cadmium and Zinc Sulphides Semiconductor Nanoparticles 化学合成的Sn和Sr掺杂的镉和锌硫化物半导体纳米颗粒的抗菌活性
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-03-18 DOI: 10.18689/mjnn-1000127
Madhuri M. Bhagat, P. Lokhande, H. Mujawar
{"title":"Antimicrobial activity of Chemically Synthesized Sn and Sr Doped Cadmium and Zinc Sulphides Semiconductor Nanoparticles","authors":"Madhuri M. Bhagat, P. Lokhande, H. Mujawar","doi":"10.18689/mjnn-1000127","DOIUrl":"https://doi.org/10.18689/mjnn-1000127","url":null,"abstract":"","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122878911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical Alloying of Nanocrystalline Materials and Nanocomposites 纳米晶材料和纳米复合材料的机械合金化
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-03-11 DOI: 10.18689/mjnn-1000126
C. Suryanarayana
{"title":"Mechanical Alloying of Nanocrystalline Materials and Nanocomposites","authors":"C. Suryanarayana","doi":"10.18689/mjnn-1000126","DOIUrl":"https://doi.org/10.18689/mjnn-1000126","url":null,"abstract":"Mechanical alloying is an effective method to synthesize nanocrystalline metal powders in the monolithic and composite states. The process involves repeated cold welding, fracturing and rewelding of powder particles in a high energy ball mill. Although originally developed to produce oxide dispersion strengthened superalloys, the technique has been later shown to be capable of producing a variety of metastable phases including nanocrystalline materials. The present article describes the synthesis of nanocrystalline materials and nanocomposites by mechanical alloying. The basic principles of the process, process parameters that affect the constitution and microstructure of the processed powders, and the mechanisms of alloying and grain refinement, including their consolidation to full density while retaining the nanostructures, are described. Methods to achieve the smallest possible grain size are then highlighted. Typical examples of the synthesis of nanocomposites containing a high volume fraction of nanometer-sized reinforcements in aluminum, and process optimization to achieve superplastic behavior in titanium-based nanocomposites are then discussed. The ubiquitous problem of powder contamination during milling and solutions to eliminate or minimize this are also mentioned.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121389219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Photo sensivity Hetero junction C-Si/Porous-Si/Zncds 光敏异质结C-Si/多孔si /Zncds
Madridge Journal of Nanotechnology & Nanoscience Pub Date : 2019-01-28 DOI: 10.18689/mjnn-1000125
M. Jafarov, H. Mamedov, E. Nasirov
{"title":"Photo sensivity Hetero junction C-Si/Porous-Si/Zncds","authors":"M. Jafarov, H. Mamedov, E. Nasirov","doi":"10.18689/mjnn-1000125","DOIUrl":"https://doi.org/10.18689/mjnn-1000125","url":null,"abstract":"Nanostructure ZnCdS thin film was fabricated by electro deposition technique. To manufacture the porous-Si, p-type c-Si wafers of (100) orientation were used as a substrate. The anodization of c-Si substrate surface was carried out in Teflon chamber with Pt cathode. HF: ethanol solution were used for the porous silicon formation. The internal structure of the obtained samples was investigated via X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM). The currentvoltage characteristics of the ZnCdS/PS solar cell at dark conditions and under illumination were investigated. The capacitance for Nano-ZnCdS/PS Solar Cell decreases with the increase of the reverse bias voltage and with the increasing of etching time of nPS layers. That hetero junctions demonstrate good photo-response in the wavelength range of 510 ÷ 650 nm.","PeriodicalId":406289,"journal":{"name":"Madridge Journal of Nanotechnology & Nanoscience","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133193673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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