Journal of Surface Science and Technology最新文献_第3页

Synthesis, Surface Active Properties and Antimicrobial Activity of Novel Ester – Amidoamine Linked Double Tailed Cationic Surfactants 新型酯-氨基胺连接双尾阳离子表面活性剂的合成、表面活性及抗菌活性

Journal of Surface Science and Technology Pub Date : 2023-02-15 DOI: 10.18311/jsst/2021/24652

Kumudini Aher, S. Bhagwat

引用次数: 0

Hierarchical Self-Assembly in DNA Ionogel: Effect of γ-Radiation on Gel Properties DNA离子凝胶的分级自组装：γ辐射对凝胶性能的影响

Journal of Surface Science and Technology Pub Date : 2023-02-15 DOI: 10.18311/jsst/2021/26297

P. Pandey, Kamla Rawat, H. Bohidar

引用次数: 0

Effect of Variation of pH and Shell Thickness upon the Optical and Structural Characteristics of PVA Capped CdSe and CdSe/ZnO Nanoparticles pH和壳厚变化对PVA包封CdSe和CdSe/ZnO纳米粒子光学和结构特性的影响

Journal of Surface Science and Technology Pub Date : 2023-02-15 DOI: 10.18311/jsst/2021/28435

Pallab Boro, S. Bhattacharjee

{"title":"Effect of Variation of pH and Shell Thickness upon the Optical and Structural Characteristics of PVA Capped CdSe and CdSe/ZnO Nanoparticles","authors":"Pallab Boro, S. Bhattacharjee","doi":"10.18311/jsst/2021/28435","DOIUrl":"https://doi.org/10.18311/jsst/2021/28435","url":null,"abstract":"Poly-Vinyl Alcohol (PVA) capped Cadmium Selenide (CdSe) and Cadmium Selenide/Zinc Oxide (CdSe/ZnO) core/shell semiconductor/semiconductor nanoparticles have been synthesized using wet chemical precipitation method. The pH of each solution was varied ranging from 9.5 to 11.5. Particle size of the CdSe nanoparticles was estimated using Brus Equation. The results of UV-Visible spectroscopy of core CdSe samples show blue shifting of absorption edges in a range of 342-377 nm compared to that of the bulk CdSe 712 nm and red shifting of the absorption edges of the core /shell samples in a range (346-357) nm in comparison to the core sample, over which the shell is deposited. For CdSe core nanoparticles, the band gap values were found to be in the range of 3.70–3.90 eV, which is larger than the bulk CdSe of 1.74 eV. Also the band gap values for the core/shell nanoparticles were in the range of 3.75-3.80 eV. The positions of excitonic emission peak obtained from photoluminescence spectra for the core is around 323 nm and for the core/shell samples is around 324nm. The average crystallite size of the core/shell CdSe/ZnO sample was obtained from XRD spectra in the range of 62-69 nm and for the core CdSe sample it was of 11-31 nm. The core and the core/shell samples were more or less spherical as obtained from the SEM analysis. Some of the core nanoparticles were 3-8 nm in size whereas the core/shell nanoparticles were 20-50 nm in size as obtained from HRTEM analysis.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45997723","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 aggregation of 1,3,4-thiadiazole based Hockey stick shaped Mesogen in Langmuir-Blodgett thin film in comparison to that of 1,3,4-oxadiazole 基于1,3,4-噻二唑的曲棍球棒状介原在Langmuir-Blodgett薄膜上的聚集与1,3,4-恶二唑的比较

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/28356

Alpana Baidya, Bandana Das, Santanu Majumder, Sandip Kumar Saha, R. K. Nath, M. K. Paul

引用次数: 0

Microstructure, Corrosion Resistance and Wettability of Hydroxyapatite and Silver-Doped Hydroxyapatite 羟基磷灰石和掺银羟基磷灰石的微观结构、耐蚀性和润湿性

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/26006

D. Shikha, S. K. Sinha, S. Murugesan

{"title":"Microstructure, Corrosion Resistance and Wettability of Hydroxyapatite and Silver-Doped Hydroxyapatite","authors":"D. Shikha, S. K. Sinha, S. Murugesan","doi":"10.18311/jsst/2021/26006","DOIUrl":"https://doi.org/10.18311/jsst/2021/26006","url":null,"abstract":"In recent years, synthesis and characterization of Ag-based materials has become an active area of research due to its application in medical area for having antimicrobial properties useful for prosthetic replacement. Pure HydroxyAPatite (HAP) and 1.5wt% Ag-doped HydroxyAPatite (AgHAP) were prepared by sol-gel process and characterized. Ca(NO3)2.4H2O was used as source of Ca precursor, P2O5 was used as a source of P precursor, and AgNO3 has been used as a source of Ag precursor. Pellets of HAP and AgHAP were made after precipitates were consolidated, dried in oven, grounded and sintered in a muffle furnace. Functional groups were determined using FTIR, and compound formations were investigated using XRD. Microstructural analysis was done using SEM and AFM. Wettability was studied using OCA in distilled water, and corrosion resistance and impedance analyses were carried out using ECA in Ringer solution. It was observed from AFM and XRD that grain size decreased from 7.05 ?m to 1.25 ?m. Improvement in corrosion resistance was observed in AgHAP. Wettability studies showed that AgHAP is more hydrophilic in comparison with pure HAP. A correlation between microstructures and properties of hydroxyapetites are discussed in this paper.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45904167","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

Study of Water Absorption Properties of Annealed Nanodiamond/Epoxy Nanocomposites 退火纳米金刚石/环氧树脂纳米复合材料的吸水性能研究

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/25380

Baljit Singh, A. Mohanty

引用次数: 0

Interfacial Interactions of Monoolein Langmuir Monolayers with Aqueous Salt Solutions Monolein-Langmuir单层与盐水溶液的界面相互作用

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/28882

Balaji Dhopte, V. N. Lad

引用次数: 0

Anodising and Plasma Electrolytic Oxidation for the Surface Modification of Aluminium Alloys: Review 铝合金表面改性的阳极氧化和等离子体电解氧化研究进展

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/25388

B. Sahoo, T. Das, J. Paul

{"title":"Anodising and Plasma Electrolytic Oxidation for the Surface Modification of Aluminium Alloys: Review","authors":"B. Sahoo, T. Das, J. Paul","doi":"10.18311/jsst/2021/25388","DOIUrl":"https://doi.org/10.18311/jsst/2021/25388","url":null,"abstract":"Aluminium (Al) and its alloys are attractive for a variety of applications due to its advantages like light weight, ease of processing and high thermal/electrical conductivities. However, it suffers from shortcomings in terms of strength, wear resistance and corrosion resistance. Anodising is commonly used to improve the surface modification of Al alloys. This paper presents a review of anodising and related processes and updates the current status in this area. The chemical structure and the size of the oxide film are influenced by factors like temperature, type of electrolyte and current density/ applied voltage. Depending on the process parameters, the oxide film formed in this process can be thin, non-porous, thick, and porous. The hardness of the coating in anodizing is influenced by the parameters like coating thickness, voltage, current density, and temperature. Further, it is required to regulate the metal/oxide or film/solution interface at which the barrier film grows. In Plasma Electrolytic Oxidation (PEO), the modified version of anodising, and the selection of operating conditions influence coating morphology, structure and composition which in turn affect the wear resistance and corrosion properties. The properties of the coating in case of PEO process are influenced by the nature/structure of the base material, type/composition of electrolyte, temperature of the electrolyte during the process, oxidation time, and electrical parameter (current density and voltage). Understanding of the effect of these parameters on coating properties opens new vista for better application prospects.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49177570","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

Acid Modified Graphene Oxide from used Battery Rods Loaded with 2-{(E)-[(3-hydroxyphenyl) imino] methyl} phenol: Electrochemical Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid in Aqueous Medium 负载2-{（E）-[（3-羟基苯基）亚氨基]甲基}苯酚的废旧电池棒的酸改性氧化石墨烯：水介质中抗坏血酸和尿酸存在下多巴胺的电化学检测

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/28855

Diganta Kumar Das, Priyakshi Bordoloi

引用次数: 0

Investigation of the effect of Graphene Nanoplatelet content on Flexural Behavior, Surface Roughness and Water Absorption of a Graphene Nanoplatelets Reinforced Epoxy Nanocomposites 石墨烯纳米片含量对石墨烯纳米片增强环氧复合材料弯曲性能、表面粗糙度和吸水性影响的研究

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI: 10.18311/jsst/2021/27393

A. Kesavulu, A. Mohanty

{"title":"Investigation of the effect of Graphene Nanoplatelet content on Flexural Behavior, Surface Roughness and Water Absorption of a Graphene Nanoplatelets Reinforced Epoxy Nanocomposites","authors":"A. Kesavulu, A. Mohanty","doi":"10.18311/jsst/2021/27393","DOIUrl":"https://doi.org/10.18311/jsst/2021/27393","url":null,"abstract":"In the present work, the effect of Graphene nanoPlatelets (GnP) content on the flexural, surface roughness, and water absorption behavior of a GnP reinforced epoxy composite was investigated. Different wt.% of GnP (0.25, 0.5, 0.75, and 1 wt.%) was added into the epoxy matrix through the sonication method followed by the ball milling. The results indicate a significant enhancement in the flexural properties of the epoxy nanocomposite with the addition of GnP in the epoxy matrix. The optimum enhancement in the properties was obtained at 0.25 wt.% GnP incorporated epoxy composites. The increase in flexural strength and flexural modulus results were noticed as 42.7% and 49.2% when compared with neat epoxy. The surface roughness value for the loading of 0.25 wt.% of GnP into the epoxy showed a drop of 48.7% when compared with that of the neat epoxy sample. The loading of 0.25 wt.% of GnP into the epoxy also reduces the water absorption from 0.125% for the neat epoxy sample to 0.067% for the composite sample. The Scanning Electron Microscope (SEM) images of the fractured surface (flexural samples) of the GnP embedded epoxy composites show the river like pattern, which is the result of the better dispersion of the GnP in the epoxy matrix and thus shows improvement in flexural behaviour of such composite materials.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41369765","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