Pub Date : 2023-03-30DOI: 10.13074/jent.2023.03.231464
C. F. Simple Lotus, Jino John, S. Ramesh Kumar
An attempt has been made in this work to green synthesize nickel nanoparticles using the aqueous flower extract of Moringa oleifera, a common plant in which all parts are edible and rich in iron content, through the biosynthesis method. The synthesized Moringa oleifera flower extract nanorods were characterized by UV–Vis. spectroscopy, Fourier Transform Infrared spectroscopy, X-Ray Diffraction analysis and Transmission Electron Microscopy. In addition, the antimicrobial activity of the nanorods was evaluated. The nanorods were found to be crystalline in nature with rod-like structures having a mean particle size of 35 nm.
{"title":"Green Synthesis and Characterization of Nickel Nanoparticles using Aqueous Extract of Moringa oleifera Flower","authors":"C. F. Simple Lotus, Jino John, S. Ramesh Kumar","doi":"10.13074/jent.2023.03.231464","DOIUrl":"https://doi.org/10.13074/jent.2023.03.231464","url":null,"abstract":"An attempt has been made in this work to green synthesize nickel nanoparticles using the aqueous flower extract of Moringa oleifera, a common plant in which all parts are edible and rich in iron content, through the biosynthesis method. The synthesized Moringa oleifera flower extract nanorods were characterized by UV–Vis. spectroscopy, Fourier Transform Infrared spectroscopy, X-Ray Diffraction analysis and Transmission Electron Microscopy. In addition, the antimicrobial activity of the nanorods was evaluated. The nanorods were found to be crystalline in nature with rod-like structures having a mean particle size of 35 nm.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89799625","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}
Pub Date : 2022-12-30DOI: 10.13074/jent.2022.12.224460
V. Senthilkumar, Haresh M. Pandya, R. Kesavaraj, U. Ganesh, J. C. Roshan
Different compositions of Polyvinyl alcohol (PVA), Polyvinylidene fluoride (PVDF) and Ammonium bromide (NH4Br) were employed to synthesize the proton-conducting polymer electrolyte membranes by Solution casting method, which have potential applications in proton (H+) ion batteries and fuel cells. Structural, vibrational and electrical properties of the synthesized polymer electrolyte membrane were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy and Electrical Impedance Spectroscopy (EIS) analysis and results were reported. The semi-crystalline nature of the prepared polymer was confirmed by XRD analysis. FTIR spectroscopy revealed the vibrational spectra of the prepared polymer membrane. The Nyquist plot drawn from the AC Impedance analysis was a straight line, confirming the dielectric nature of the prepared membrane.
{"title":"Synthesis and Studies on Polymer Electrolyte Membrane using Polyvinyl Alcohol, Polyvinylidene Fluoride and Ammonium Bromide as Dopants for Proton-conducting Electrolyte","authors":"V. Senthilkumar, Haresh M. Pandya, R. Kesavaraj, U. Ganesh, J. C. Roshan","doi":"10.13074/jent.2022.12.224460","DOIUrl":"https://doi.org/10.13074/jent.2022.12.224460","url":null,"abstract":"Different compositions of Polyvinyl alcohol (PVA), Polyvinylidene fluoride (PVDF) and Ammonium bromide (NH4Br) were employed to synthesize the proton-conducting polymer electrolyte membranes by Solution casting method, which have potential applications in proton (H+) ion batteries and fuel cells. Structural, vibrational and electrical properties of the synthesized polymer electrolyte membrane were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy and Electrical Impedance Spectroscopy (EIS) analysis and results were reported. The semi-crystalline nature of the prepared polymer was confirmed by XRD analysis. FTIR spectroscopy revealed the vibrational spectra of the prepared polymer membrane. The Nyquist plot drawn from the AC Impedance analysis was a straight line, confirming the dielectric nature of the prepared membrane.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"180 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83008628","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}
Pub Date : 2022-12-30DOI: 10.13074/jent.2022.12.224463
V. Anusha Devi, V. Kalaiselvi
An attempt has been made in this work to synthesise an effective mixed metal oxide – zinc ferrite (ZnFe2O4) nanoparticles, coated on a substrate material, by Thin film electroplating technique. The prepared samples were subsequently characterized using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and Electrochemical performance analysis techniques. The XRD pattern has revealed the crystalline dimensions. Surface analysis has been carried out using FESEM and Cyclic Voltammetry has been employed for electrochemical studies of the prepared samples.
{"title":"Synthesis and Characterization of Mixed Metal Oxide Nanoparticles using Thin Film Electroplating Method","authors":"V. Anusha Devi, V. Kalaiselvi","doi":"10.13074/jent.2022.12.224463","DOIUrl":"https://doi.org/10.13074/jent.2022.12.224463","url":null,"abstract":"An attempt has been made in this work to synthesise an effective mixed metal oxide – zinc ferrite (ZnFe2O4) nanoparticles, coated on a substrate material, by Thin film electroplating technique. The prepared samples were subsequently characterized using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and Electrochemical performance analysis techniques. The XRD pattern has revealed the crystalline dimensions. Surface analysis has been carried out using FESEM and Cyclic Voltammetry has been employed for electrochemical studies of the prepared samples.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"227 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74529448","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}
Pub Date : 2022-12-30DOI: 10.13074/jent.2022.12.224462
G. Alagu Vibisha, Malek G. Daher, S. M. Habibur Rahman, Z. Jaroszewicz, K.B. Rajesh, Rajan Jha
An attempt has been made to enhance the sensitivity of a high-sensitive surface plasmon resonance (SPR) biosensor with an aluminium-cobalt bimetallic layer covered by a tungsten disulfide-graphene heterostructure. A thin layer of cobalt coated on an aluminium layer contributed substantially to increase the sensor performance. The use of Al and Co metals instead of noble metals like Ag and Au reduced the cost of the sensor. Further, tungsten disulfide (WS2) layers were employed to improve sensitivity and protect the bimetal Al-Co from becoming oxidized, whereas graphene served as the biomolecule trapping medium. The number of WS2 and graphene layers have optimized for better sensitivity. The proposed biosensor Al-Co-WS2-graphene structure displayed an excellent sensitivity of 300°/RIU, convenient for sensing biomolecules.
利用二硫化钨-石墨烯异质结构覆盖的铝-钴双金属层，试图提高高灵敏度表面等离子体共振(SPR)生物传感器的灵敏度。在铝层上涂上一层薄薄的钴，大大提高了传感器的性能。使用Al和Co金属代替像Ag和Au这样的贵金属，降低了传感器的成本。此外，采用二硫化钨(WS2)层来提高灵敏度并保护双金属Al-Co不被氧化，而石墨烯作为生物分子捕获介质。WS2和石墨烯层的数量已经优化，以获得更好的灵敏度。所提出的al - co - ws2 -石墨烯结构的生物传感器具有300°/RIU的优异灵敏度，便于对生物分子进行传感。
{"title":"Sensitivity Enhancement of Surface Plasmon Resonance-based Biosensor using Aluminium-Cobalt-Tungsten Disulfide-Graphene Heterostructure","authors":"G. Alagu Vibisha, Malek G. Daher, S. M. Habibur Rahman, Z. Jaroszewicz, K.B. Rajesh, Rajan Jha","doi":"10.13074/jent.2022.12.224462","DOIUrl":"https://doi.org/10.13074/jent.2022.12.224462","url":null,"abstract":"An attempt has been made to enhance the sensitivity of a high-sensitive surface plasmon resonance (SPR) biosensor with an aluminium-cobalt bimetallic layer covered by a tungsten disulfide-graphene heterostructure. A thin layer of cobalt coated on an aluminium layer contributed substantially to increase the sensor performance. The use of Al and Co metals instead of noble metals like Ag and Au reduced the cost of the sensor. Further, tungsten disulfide (WS2) layers were employed to improve sensitivity and protect the bimetal Al-Co from becoming oxidized, whereas graphene served as the biomolecule trapping medium. The number of WS2 and graphene layers have optimized for better sensitivity. The proposed biosensor Al-Co-WS2-graphene structure displayed an excellent sensitivity of 300°/RIU, convenient for sensing biomolecules.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81061200","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}
Pub Date : 2022-09-28DOI: 10.13074/jent.2022.09.223456
Dhaval A. Vartak, Yogesh Ghotekar, Pina M. Bhatt, Bharat Makwana, Hetalkumar Shah, J. A. Vadher, B. S. Munjal
High specific stiffness materials are used to design the space payload components. These components should sustain the extreme environmental conditions throughout their life cycle, without failure. Space missions need lightweight materials which are mechanically strong with high thermal and electric conductivities. Carbon fiber reinforced polymer (CFRP) offers considerable mass saving and high strength, which is widely used for space payload components. However, it has limitations to replace the traditional space-qualified materials due to its low conductivity. Carbon Nanotubes (CNTs) are efficient with greater electrical and thermal conductivities. For CNTs to be seen as effective reinforcements for attaining high strength and conductivity of polymer composites, they need to meet the criteria of being well-dispersed by the solution mixing method. The quality of the CNT nanocomposite relies upon several parameters like the type of CNTs, purity, aspect ratio, amount of loading, alignment and interfacial adhesion between the nanotube and polymer. The performance of the CNT-CFRP composite depends on the successful execution of the processing technique. It has been intended in this review paper to highlight the enhancement of the mechanical, thermal and electrical properties of the composite, and the challenges in achieving it. An attempt has been made to optimize the process parameters to fabricate space payload components which can be excellent alternatives to the existing high-density materials. Moreover, this review research is the need of the hour for prominent space agencies such as ISRO and NASA for their future inter-planetary missions, where payload weight needs to be kept light without making any compromise on the performance index.
{"title":"Carbon Nanotube Composites to Enhance Thermal and Electrical Properties for Space Applications - A Review","authors":"Dhaval A. Vartak, Yogesh Ghotekar, Pina M. Bhatt, Bharat Makwana, Hetalkumar Shah, J. A. Vadher, B. S. Munjal","doi":"10.13074/jent.2022.09.223456","DOIUrl":"https://doi.org/10.13074/jent.2022.09.223456","url":null,"abstract":"High specific stiffness materials are used to design the space payload components. These components should sustain the extreme environmental conditions throughout their life cycle, without failure. Space missions need lightweight materials which are mechanically strong with high thermal and electric conductivities. Carbon fiber reinforced polymer (CFRP) offers considerable mass saving and high strength, which is widely used for space payload components. However, it has limitations to replace the traditional space-qualified materials due to its low conductivity. Carbon Nanotubes (CNTs) are efficient with greater electrical and thermal conductivities. For CNTs to be seen as effective reinforcements for attaining high strength and conductivity of polymer composites, they need to meet the criteria of being well-dispersed by the solution mixing method. The quality of the CNT nanocomposite relies upon several parameters like the type of CNTs, purity, aspect ratio, amount of loading, alignment and interfacial adhesion between the nanotube and polymer. The performance of the CNT-CFRP composite depends on the successful execution of the processing technique. It has been intended in this review paper to highlight the enhancement of the mechanical, thermal and electrical properties of the composite, and the challenges in achieving it. An attempt has been made to optimize the process parameters to fabricate space payload components which can be excellent alternatives to the existing high-density materials. Moreover, this review research is the need of the hour for prominent space agencies such as ISRO and NASA for their future inter-planetary missions, where payload weight needs to be kept light without making any compromise on the performance index.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82668997","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}
Pub Date : 2022-09-28DOI: 10.13074/jent.2022.09.223459
M. Vishalatchi, V. Kalaiselvi, P. Yasotha, B. Blessymol
Ferric oxide nanoparticles were synthesized by eco-friendly green synthesis and chemical synthesis methods. FeO nanoparticles were synthesized by Chemical co-precipitation method associated with microwave irradiation method and were characterized by XRD, FTIR, SEM, EDAX and Antibacterial Activity. The X-ray Diffraction (XRD) pattern analysis has revealed the crystal structure of FeO. The FTIR pattern has represented the functional groups of the prepared sample. The morphology and purity of the samples were analyzed by using Scanning Electron Microscopy and Energy Dispersion X-ray Diffraction analysis. The Antibacterial activity of the FeO nanoparticles were tested with gram positive Staphylococcus aureus and Bacillus subtilis, gram negative Escherichia coli and Pseudomonas aeruginosa. The results matched well with the standard values.
{"title":"Eco-friendly Synthesis of Ferric Oxide Nanoparticles - Antimicrobial Activity","authors":"M. Vishalatchi, V. Kalaiselvi, P. Yasotha, B. Blessymol","doi":"10.13074/jent.2022.09.223459","DOIUrl":"https://doi.org/10.13074/jent.2022.09.223459","url":null,"abstract":"Ferric oxide nanoparticles were synthesized by eco-friendly green synthesis and chemical synthesis methods. FeO nanoparticles were synthesized by Chemical co-precipitation method associated with microwave irradiation method and were characterized by XRD, FTIR, SEM, EDAX and Antibacterial Activity. The X-ray Diffraction (XRD) pattern analysis has revealed the crystal structure of FeO. The FTIR pattern has represented the functional groups of the prepared sample. The morphology and purity of the samples were analyzed by using Scanning Electron Microscopy and Energy Dispersion X-ray Diffraction analysis. The Antibacterial activity of the FeO nanoparticles were tested with gram positive Staphylococcus aureus and Bacillus subtilis, gram negative Escherichia coli and Pseudomonas aeruginosa. The results matched well with the standard values.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79094963","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}
Pub Date : 2022-09-28DOI: 10.13074/jent.2022.09.223455
P. Maheswari, V Ravi, K. B. Rajesh, Rajan Jha
The performance of prism-based surface plasmon resonance sensor utilizing kretschmann configuration composed of thin metallic (Cu–Co) film coated with 2D material such as BP/Graphene layer is investigated theoretically based on angular interrogation method. It is observed that optimizing the thickness of bimetallic (Cu–Co) and BP/Graphene layers, the sensitivity of the sensor improved greatly and still can maintain its minimum reflectivity and line width of the SPR reflectivity curve. We also observed that addition of BP/ Graphene over the bimetallic layer, its further enhanced the sensitivity. Numerical results shows that sensitivity as high as 504deg/RIU is achieved for the well optimized bimetallic configuration consist of 45nm of Cu and 10nm of Co thickness for the analyte refractive indices ranging from 1.330 - 1.335.
{"title":"High Performance Bimetallic(Cu-Co) Surface Plasmon Resonance Sensor using Hybrid Configuration of 2D Materials","authors":"P. Maheswari, V Ravi, K. B. Rajesh, Rajan Jha","doi":"10.13074/jent.2022.09.223455","DOIUrl":"https://doi.org/10.13074/jent.2022.09.223455","url":null,"abstract":"The performance of prism-based surface plasmon resonance sensor utilizing kretschmann configuration composed of thin metallic (Cu–Co) film coated with 2D material such as BP/Graphene layer is investigated theoretically based on angular interrogation method. It is observed that optimizing the thickness of bimetallic (Cu–Co) and BP/Graphene layers, the sensitivity of the sensor improved greatly and still can maintain its minimum reflectivity and line width of the SPR reflectivity curve. We also observed that addition of BP/ Graphene over the bimetallic layer, its further enhanced the sensitivity. Numerical results shows that sensitivity as high as 504deg/RIU is achieved for the well optimized bimetallic configuration consist of 45nm of Cu and 10nm of Co thickness for the analyte refractive indices ranging from 1.330 - 1.335.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73159649","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}
Pub Date : 2022-09-28DOI: 10.13074/jent.2022.09.223458
Ashutosh Pratap Pande
Recently we are living in the world in which so called sapiens are busted with all possible kind of information. The water quality is of vital concern for mankind as it is related to human health, protection of the environment and sustainable development. Water an essential ingredient and it is present in polluted form in most of the countries in Asia. The deterioration in all aspects of surface and sub-surface water is one of the outcomes of increasing population. All issues related to water from water security to geopolitics, management of water resources to water policies and intervention in natural flow of water to produce hydro-power are governed by the human beings only. The proclamation of Albert Schweitzer in his words “Man has lost the capacity to foresee and to forestall. He will end by destroying the earth” indicates the direction in which this world is heading to. Yuval Noah Harari indicates that “the great discovery that launched the Scientific Revolution was the discovery that human do not know the answers to their most important questions”. Therefore, to save the earth, man needs to rediscover himself. In Anthropocene, all linear anthropogenic activities must be rechecked to find out the missing element to close the loop naturally. This era demands the entire generation to be wise enough to hold and carry the legacy of caring stewardship towards the earth instead of being the brutal exploiter. The time has come to dust-off the concept of defying the nature and begin harmonious relationship to acquire happiness all around in life.
{"title":"Water Issues Related to Mankind and Utmost Urge of Wise Generation in Anthropocene","authors":"Ashutosh Pratap Pande","doi":"10.13074/jent.2022.09.223458","DOIUrl":"https://doi.org/10.13074/jent.2022.09.223458","url":null,"abstract":"Recently we are living in the world in which so called sapiens are busted with all possible kind of information. The water quality is of vital concern for mankind as it is related to human health, protection of the environment and sustainable development. Water an essential ingredient and it is present in polluted form in most of the countries in Asia. The deterioration in all aspects of surface and sub-surface water is one of the outcomes of increasing population. All issues related to water from water security to geopolitics, management of water resources to water policies and intervention in natural flow of water to produce hydro-power are governed by the human beings only. The proclamation of Albert Schweitzer in his words “Man has lost the capacity to foresee and to forestall. He will end by destroying the earth” indicates the direction in which this world is heading to. Yuval Noah Harari indicates that “the great discovery that launched the Scientific Revolution was the discovery that human do not know the answers to their most important questions”. Therefore, to save the earth, man needs to rediscover himself. In Anthropocene, all linear anthropogenic activities must be rechecked to find out the missing element to close the loop naturally. This era demands the entire generation to be wise enough to hold and carry the legacy of caring stewardship towards the earth instead of being the brutal exploiter. The time has come to dust-off the concept of defying the nature and begin harmonious relationship to acquire happiness all around in life.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79940605","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}
Pub Date : 2022-06-30DOI: 10.13074/jent.2022.06.222454
J. Nancy, V. Kalaiselvi, B. Blessymol, P. Yasotha, M. Vishalatchi, S. Pavithra
In this work, Triethanolamine-doped Zinc Oxide (ZnO) nanoparticles were synthesized by chemical deposition, associated with the microwave irradiation method. The synthesized zinc oxide nanoparticles were characterized by Scanning Electron Microscope, X-Ray Diffraction, Fourier Transform Infrared Spectroscopy, Ultra Violet - visible spectroscopy, Photo Luminescence Spectroscopy and Antimicrobial Activity. The prepared sample's surface morphology, crystalline size, functional groups, absorbance and band gap, and emission wavelength were calculated. Antimicrobial activity was performed to predict the zone of inhibition of synthesized nanoparticles.
{"title":"Microwave Synthesis of Triethanolamine-doped Zinc Oxide Nanoparticles","authors":"J. Nancy, V. Kalaiselvi, B. Blessymol, P. Yasotha, M. Vishalatchi, S. Pavithra","doi":"10.13074/jent.2022.06.222454","DOIUrl":"https://doi.org/10.13074/jent.2022.06.222454","url":null,"abstract":"In this work, Triethanolamine-doped Zinc Oxide (ZnO) nanoparticles were synthesized by chemical deposition, associated with the microwave irradiation method. The synthesized zinc oxide nanoparticles were characterized by Scanning Electron Microscope, X-Ray Diffraction, Fourier Transform Infrared Spectroscopy, Ultra Violet - visible spectroscopy, Photo Luminescence Spectroscopy and Antimicrobial Activity. The prepared sample's surface morphology, crystalline size, functional groups, absorbance and band gap, and emission wavelength were calculated. Antimicrobial activity was performed to predict the zone of inhibition of synthesized nanoparticles.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85785942","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}
Pub Date : 2022-06-30DOI: 10.13074/jent.2022.06.222453
D. Thillaikkarasi, R Ramesh
An Electrical double-layer capacitor (EDLC) has been fabricated with activated carbon (AC) and multi-walled carbon nanotubes (MWCNTs), which in turn were synthesized from Pongamia pinnata fruit shell and its seed oil, respectively. The activated carbon was produced by the chemical activation process at varying carbonization temperatures from 600-900 °C for 5 hours in N2 atmosphere. The obtained activated carbon had a high surface area of 1170 m2 g-1 and a total pore volume of 0.5907 cm3 g-1. The surface area of MWCNTs was 216.1 2 m2 g-1 and the total pore volume was 1.5067 cm3 g-1. The as-prepared AC and MWCNTs were characterized by surface area analysis using Brunner-Emmett-Teller method (BET), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopic analysis, Field emission scanning electron microscopy (FESEM), High-resolution transmission electron microscopy (HR-TEM), Energy-dispersive X-ray spectroscopy (EDAX) and DFT (Density functional theory). The electrochemical performance of AC-MWCNTs (25:75) Stainless steel (SS) electrode and Graphite sheet electrode (GE) were studied by cyclic voltammetry, Galvanostatic charge-discharge and electrochemical impedance spectroscopy using 0.5 M Na2SO4 aqueous electrolyte. It has shown a specific capacitance of 174 Fg-1 and 95.26 Fg-1 respectively, using the three-electrode system at a current density of 1 mA g-1. The AC-MWCNT (25:75) SS electrode has exhibited excellent specific capacitance (CSP) and its Specific energy density and Power density were greater than AC-MWCNT (25:75) GE. The electrochemical performance of AC-MWCNT (25:75) SS electrode was identified as a suitable, low-cost and promising energy storage device for future generations. The present investigation attempts to promote the supercapacitor device in the context of available and future technologies for alternative energy systems with outstanding performance.
{"title":"Synergetic Effect on Electrochemical Performance of Activated Carbon - Multiwalled Carbon Nanotubes Supercapacitor using various Electrodes in Aqueous Electrolyte","authors":"D. Thillaikkarasi, R Ramesh","doi":"10.13074/jent.2022.06.222453","DOIUrl":"https://doi.org/10.13074/jent.2022.06.222453","url":null,"abstract":"An Electrical double-layer capacitor (EDLC) has been fabricated with activated carbon (AC) and multi-walled carbon nanotubes (MWCNTs), which in turn were synthesized from Pongamia pinnata fruit shell and its seed oil, respectively. The activated carbon was produced by the chemical activation process at varying carbonization temperatures from 600-900 °C for 5 hours in N2 atmosphere. The obtained activated carbon had a high surface area of 1170 m2 g-1 and a total pore volume of 0.5907 cm3 g-1. The surface area of MWCNTs was 216.1 2 m2 g-1 and the total pore volume was 1.5067 cm3 g-1. The as-prepared AC and MWCNTs were characterized by surface area analysis using Brunner-Emmett-Teller method (BET), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopic analysis, Field emission scanning electron microscopy (FESEM), High-resolution transmission electron microscopy (HR-TEM), Energy-dispersive X-ray spectroscopy (EDAX) and DFT (Density functional theory). The electrochemical performance of AC-MWCNTs (25:75) Stainless steel (SS) electrode and Graphite sheet electrode (GE) were studied by cyclic voltammetry, Galvanostatic charge-discharge and electrochemical impedance spectroscopy using 0.5 M Na2SO4 aqueous electrolyte. It has shown a specific capacitance of 174 Fg-1 and 95.26 Fg-1 respectively, using the three-electrode system at a current density of 1 mA g-1. The AC-MWCNT (25:75) SS electrode has exhibited excellent specific capacitance (CSP) and its Specific energy density and Power density were greater than AC-MWCNT (25:75) GE. The electrochemical performance of AC-MWCNT (25:75) SS electrode was identified as a suitable, low-cost and promising energy storage device for future generations. The present investigation attempts to promote the supercapacitor device in the context of available and future technologies for alternative energy systems with outstanding performance.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77511624","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}
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