Nanomaterials and Energy最新文献

Effect of nanowollastonite wastes on the bitumen properties and the performance of hot asphalt mixtures 纳米硅灰石废料对沥青性能和热沥青混合料性能的影响

IF 1.1

Nanomaterials and Energy Pub Date : 2024-06-01 DOI: 10.1680/jnaen.22.00017

Hasan Mohammadi Anaei, M. Khabiri, A. Mansourian

{"title":"Effect of nanowollastonite wastes on the bitumen properties and the performance of hot asphalt mixtures","authors":"Hasan Mohammadi Anaei, M. Khabiri, A. Mansourian","doi":"10.1680/jnaen.22.00017","DOIUrl":"https://doi.org/10.1680/jnaen.22.00017","url":null,"abstract":"Wollastonite is a neutral mineral with a high modulus of elasticity that is composed of two parts of lime and silica in almost equal proportions and the structure of this mineral is fibrous and needle-shaped, which distinguishes it from other minerals. In recent years, extensive research has been conducted on nanomaterials as bitumen modifiers and asphalt mixtures. The effect of morphology and nanoscale wastes mineral wollastonite as bitumen additive on the properties of asphalt mixture was investigated. According to the test findings, the use of nanowollastonite increases the G* sinδ parameter between 2000-3700 kPa at room temperature, resulting in a 45% reduction in the fatigue failure factor. Additionally, the rutting factor, G*/sinδ, increases between 3.75-4.75 kPa, indicating that the presence of nanowollastonite extends the pavement’s rutting life by 20% at the optimal concentration of 4% nanowollastonite. Findings demonstrate that waste nanowollastonite can be introduced as a new waste material to enhance the performance of asphalt pavement, considering the shape and size of its nano-components. Furthermore, incorporating waste nanowollastonite in the present design of asphalt concrete has a significant impact on reducing energy usage. Encouraging the use of these waste nanoparticles is worthwhile in order to reduce global energy consumption and pollution.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141229842","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

Analysis on feasibility of solar-powered air conditioning systems using natural refrigerants 使用天然制冷剂的太阳能空调系统可行性分析

IF 1.1

Nanomaterials and Energy Pub Date : 2024-06-01 DOI: 10.1680/jnaen.23.00101

Rakesh Naskar, Ratan Mandal

{"title":"Analysis on feasibility of solar-powered air conditioning systems using natural refrigerants","authors":"Rakesh Naskar, Ratan Mandal","doi":"10.1680/jnaen.23.00101","DOIUrl":"https://doi.org/10.1680/jnaen.23.00101","url":null,"abstract":"The current research focuses on low-carbon alternatives for air conditioning systems that use sustainable and low-power drives. This detailed research takes into account a 1-ton capacity air conditioning system using several refrigerants based on vapor compression. Natural refrigerants should be used instead of all synthetic ones due to their environmentally favorable properties. Using the CoolPack software platform, the comparative analysis was conducted and it was found that the natural refrigerants R290 and R600a exhibit promising results in terms of heat removal from the evaporator (Qe [kW], heat removal from the condenser (Qc [kW], work done by the compressor (W [kW], and Co-efficient of Performance (COP) when fixed temperatures of 10 °C for the evaporator and 50 °C for the condenser are preserved. For refrigerant R600a, superheating at the compressor (inlet) suction by 5°C is necessary to maintain the running cycle within a practical working zone. Given that a 1-ton vapor compression cycle air conditioning system based on R290 has a compressor work consumption of 640 W, the motor power input for a single-phase induction motor will be roughly 1000 W. In contrast, DC motors require about 30% less power (770 W) and can be readily driven by solar photovoltaic systems (DC). Thus, by presenting solar thermal (required for R600a) and solar photovoltaic power (DC) application for natural refrigerants R290 and R600a, the present work will contribute to a sustainable environment and demonstrate the capabilities of dependable operation with optimal power usage.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141233968","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

Biological performance of femtosecond laser textured Fe-Mn alloys for vascular applications 用于血管应用的飞秒激光纹理铁锰合金的生物学性能

IF 1.1

Nanomaterials and Energy Pub Date : 2024-06-01 DOI: 10.1680/jnaen.23.00009

F. Copes, J. Fiocchi, S. Gambaro, C. Bregoli, A. Tuissi, C. Biffi, Diego Mantovani

{"title":"Biological performance of femtosecond laser textured Fe-Mn alloys for vascular applications","authors":"F. Copes, J. Fiocchi, S. Gambaro, C. Bregoli, A. Tuissi, C. Biffi, Diego Mantovani","doi":"10.1680/jnaen.23.00009","DOIUrl":"https://doi.org/10.1680/jnaen.23.00009","url":null,"abstract":"Biodegradable metals represent a valuable solution for the development of temporary vascular implants. These are expected to dissolve in the body over time, avoiding side effects typical of permanent implants such as thrombosis, in-stent restenosis and chronic inflammation. Iron-based alloys, such as Fe-Mn alloys, are of particular interest for cardiovascular applications due to their intrinsic properties. However, their degradation behaviour and biological performances needs to be improved. Femtosecond laser(fs)-induced surface topography could affect both the degradation and cell-material interaction. In the present work, fs laser-induced patterning was performed on a Fe-Mn20 alloy to tune both the material’s degradation behaviour and its interaction with the biological environment for cardiovascular applications. Processing parameters were varied to select an optimized surface morphology, characterized by linear grooves. Profilometric analysis, scanning electron microscopy and degradation rate analysis were performed on the treated samples. Thereafter, endothelial cells viability test and hemocompatibility assessment were carried out on the selected process conditions. The obtained fs laser-induced linear patterns were demonstrated to decrease the degradation rate and to improve the biological response toward both endothelial cells and blood. These results demonstrate how fs laser-induced patterning is a promising solution for the development of biodegradable metal-based vascular implants.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141235593","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

Synthesis of BiDy composite oxide nanoflakes with good electrochemical properties 合成具有良好电化学性能的 BiDy 复合氧化物纳米片

IF 1.1

Nanomaterials and Energy Pub Date : 2024-06-01 DOI: 10.1680/jnaen.23.00066

Chenxu Feng, Qianmin Cong, Xiaoyu Wang, Jiayin Cui, Lizhai Pei

引用次数: 0

Effect of nanomaterials on the melting and freezing characteristics of phase change material 纳米材料对相变材料熔融和冻结特性的影响

IF 1.1

Nanomaterials and Energy Pub Date : 2024-06-01 DOI: 10.1680/jnaen.24.00021

P. Sivasamy, P. Pitchipoo, B. Jegan, K. Karthik, D. Mahadevi, N. Gnanakumar

{"title":"Effect of nanomaterials on the melting and freezing characteristics of phase change material","authors":"P. Sivasamy, P. Pitchipoo, B. Jegan, K. Karthik, D. Mahadevi, N. Gnanakumar","doi":"10.1680/jnaen.24.00021","DOIUrl":"https://doi.org/10.1680/jnaen.24.00021","url":null,"abstract":"A novel variant of composite phase change materials (PCMs) has been developed by incorporating 0.5 wt% of Al2O3, SiO2, CuO, and Ag nanomaterials into myristic acid. In this formulation, myristic acid serves as the foundational material, while Al2O3, SiO2, CuO, and Ag are employed as supportive components. The morphology and crystalline structure of the nanomaterials were studied using a field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD) analysis, respectively. The composite phase change materials were fabricated using a two-step process. The phase change properties of the composite phase change materials were assessed using Differential Scanning Calorimetry (DSC). The nanomaterials (0.5 wt% of Al2O3, SiO2, CuO, and Ag) were suspended in myristic acid separately to investigate the heat transfer performance of the composite phase change materials during phase change processes (melting and freezing). The results clearly indicate that the duration of the melting and freezing processes of the composite phase change materials decreased compared to that of the pure phase change material. Thus, the newly prepared composite phase change materials are potential candidates for harvesting solar energy for low-temperature heating applications.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141408192","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

Local structural and sensing properties of TiO2 thin film using the PVD method 利用 PVD 方法实现 TiO2 薄膜的局部结构和传感特性

IF 1.1

Nanomaterials and Energy Pub Date : 2024-03-01 DOI: 10.1680/jnaen.23.00087

A. Vishwakarma, Ashok Kumar Mishra, C. K. Dixit, L. Yadava

{"title":"Local structural and sensing properties of TiO2 thin film using the PVD method","authors":"A. Vishwakarma, Ashok Kumar Mishra, C. K. Dixit, L. Yadava","doi":"10.1680/jnaen.23.00087","DOIUrl":"https://doi.org/10.1680/jnaen.23.00087","url":null,"abstract":"This paper studied the structural, morphological, optical, and X-ray absorption near-edge spectroscopy (XANES) and sensing properties of titanium dioxide (TiO2) thin film. The TiO2 thin film is prepared in the thin film laboratory on a clean glass plate using a physical vapor deposition (PVD) method. The structural, morphological, Optical, and electronic properties of the fabricated samples are presented by X-ray diffraction (XRD), atomic force microscope (AFM), UV-visible, and XANES. It is found from XRD the crystallite size was ∼25.66 nm with microstrain ∼0.0064 using the Williamson-Hall (W-H) plot. The fractal terms such as grain size, roughness, kurtosis, and skewness were estimated using AFM. The grain size lies in the nanometric range and found that ∼77.21 nm. The band gap of the fabricated film is ∼3.23 eV. The XANES analysis is well supported by XRD measurement and the result found that the fabricated TiO2 thin film was anatase phase. The sensing properties of TiO2 are studied for the detection of Liquified Petroleum Gas (LPG) concentration (0-5000 ppm) at room temperature. Results found that the TiO2 film is highly sensitive and is the fast response for LPG gas sensors with a maximum sensitivity of ∼198 %.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140085904","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

Synthesis and characterization of Cs2TiX6(X=Cl, Br) double perovskites forphotocatalytic dye degradation 用于光催化染料降解的 Cs2TiX6（X=Cl，Br）双包晶石的合成与表征

IF 1.1

Nanomaterials and Energy Pub Date : 2024-03-01 DOI: 10.1680/jnaen.23.00064

Sujubili Narzary, Sanat Das, P. P. Gohain, K. Chakraborty, M. G. Choudhury, Samrat Paul

{"title":"Synthesis and characterization of Cs2TiX6(X=Cl, Br) double perovskites forphotocatalytic dye degradation","authors":"Sujubili Narzary, Sanat Das, P. P. Gohain, K. Chakraborty, M. G. Choudhury, Samrat Paul","doi":"10.1680/jnaen.23.00064","DOIUrl":"https://doi.org/10.1680/jnaen.23.00064","url":null,"abstract":"Massive efforts have been undertaken for better utilization of solar energy in environmental and energy applications. The creation of environmentally friendly, economically viable, and chemically efficient processes is today's key chemistry challenge. The primary goal of this study is to synthesize and confirm the viability of lead-free halide perovskite for photocatalytic efficiency in the degradation of organic dyes namely, Eosin B and Eosin Y in water solutions when exposed to visible light. Lead-free Cesium Titanium halide Cs2TiX6 (X=Cl, Br) double perovskite compound was successfully synthesized by solution process method. The effective synthesis of perovskite photocatalysts was confirmed by various optical, morphological, and structural characterization techniques such as X-ray diffraction (XRD), UV-visible spectrophotometer, Photoluminescence spectroscopy (PL), Zeta potential, Scanning Electron Microscope (SEM), and Transmission Electron Microscope (TEM).Positive zeta values reveal that the generated photocatalyst is functional with the adsorption of anionic dyes. The photodegradation efficiency of Eosin Y by the synthesized perovskite photocatalysts was substantially higher than that of Eosin B.The photocatalytic degradation efficiency of Cs2TiCl6 and Cs2TiBr6 perovskite photocatalysts for Eosin B is 59.12% and 48.77%, respectively, and 72.35% and 89.94% for Eosin Y.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140085180","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

Perovskite oxides incorporated with reduced graphene oxide (LaFeO3/rGO) for electromagnetic interference (EMI) shielding 加入还原氧化石墨烯（LaFeO3/rGO）的包晶氧化物用于电磁干扰（EMI）屏蔽

IF 1.1

Nanomaterials and Energy Pub Date : 2024-03-01 DOI: 10.1680/jnaen.23.00049

Prakash S., Suvitha A., A. Steephen, Ajay P., Bradha Madhavan

引用次数: 0

Recent advances on magnetic nanomaterials in waste water treatment: a review 废水处理中磁性纳米材料的最新进展：综述

IF 1.1

Nanomaterials and Energy Pub Date : 2024-03-01 DOI: 10.1680/jnaen.23.00105

Sakshi Deole, S. S. Pati

引用次数: 0

One pot synthesis of nano EMD for effective adsorption of toxic dyes 一锅合成有效吸附有毒染料的纳米 EMD

IF 1.1

Nanomaterials and Energy Pub Date : 2023-12-01 DOI: 10.1680/jnaen.22.00061

A. Biswal, J. P. Dhal, B. R. Das, P. K. Panda, B. C. Tripathy

{"title":"One pot synthesis of nano EMD for effective adsorption of toxic dyes","authors":"A. Biswal, J. P. Dhal, B. R. Das, P. K. Panda, B. C. Tripathy","doi":"10.1680/jnaen.22.00061","DOIUrl":"https://doi.org/10.1680/jnaen.22.00061","url":null,"abstract":"A simple electrochemical technique was employed to synthesize nanocorn electrolytic manganese dioxide (EMD) in presence of a structure directing agent poly vinyl pyrollidone (PVP) at optimum concentration in the aqueous acidic manganese sulphate bath. XRD and SEM analyses confirm the formation of MnO2 with nano corn shaped crystals at optimum concentration i.e 20 mg.L−1 of PVP. The finely ground material successfully employed for the removal of toxic dyes chicago sky blue (CSB) and malachite green (MG) from aqueous solution. Various process parameters such as different adsorbents, adsorbent dose, contact time, initial dye concentration and pH were varied and optimised for both the dyes. It was found that EMD20PVP showed 99.61% of adsorption efficiency at an optimum dose of 0.04 g / 20 mL of the 100 mg.L−1 chicago sky blue dye solution at room temperature within 20 minutes. However same EMD20PVP sample showed 99.5% adsorption efficiency at an optimum dose 0.07 g / 20 mL of the 100 mg.L−1 Malachite green dye solution at room temperature within 120 minutes. From the adsorption kinetics study it was concluded that, adsorption process follows pseudo-second order kinetics and adsorption isotherm confirms the reaction follows Langmuir adsorption for both the dyes.","PeriodicalId":44365,"journal":{"name":"Nanomaterials and Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138625117","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