Pub Date : 2019-01-01DOI: 10.26655/AJNANOMAT.2019.1.2
P. Gharbani, Amir Mehalizadeh
The zinc oxide nano sheets were prepared by zinc sulfate and sodium hydroxide via precipitated method and, then, calcinated at 300 oC. In order to have a reliable characterization of the synthesized ZnO nanosheets, FTIR, XRD, FESEM, XRF, TGA and Raman techniques were applied. The phase and purity of zinc oxide nanosheets were confirmed by XRD and XRF, respectively. FESEM results showed the morphology of zinc oxide and revealed that the size of the prepared powder is in the range of nanometer. TGA analysis revealed that there are two endothermic reactions which have occurred at 35-200oC and 300 - 400oC temperatures. Optical spectra indicated that the band gap of the prepared nanosheets transmitted a red shift.
{"title":"Facile Preparation of Novel Zinc Oxide Nano Sheets and Study of Its Optical Properties","authors":"P. Gharbani, Amir Mehalizadeh","doi":"10.26655/AJNANOMAT.2019.1.2","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2019.1.2","url":null,"abstract":"The zinc oxide nano sheets were prepared by zinc sulfate and sodium hydroxide via precipitated method and, then, calcinated at 300 oC. In order to have a reliable characterization of the synthesized ZnO nanosheets, FTIR, XRD, FESEM, XRF, TGA and Raman techniques were applied. The phase and purity of zinc oxide nanosheets were confirmed by XRD and XRF, respectively. FESEM results showed the morphology of zinc oxide and revealed that the size of the prepared powder is in the range of nanometer. TGA analysis revealed that there are two endothermic reactions which have occurred at 35-200oC and 300 - 400oC temperatures. Optical spectra indicated that the band gap of the prepared nanosheets transmitted a red shift.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89788581","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 : 2019-01-01DOI: 10.26655/AJNANOMAT.2019.1.6
A. Subramaniyan, V. Veeraganesh
Nanocomposites are novel materials which are yet to be explored and utilised to its complete potential. Nanocomposites can be tailored by the volume fraction of the matrix, fibre and also by the size and shape of the nanophase material in the composite. Preparing nanocomposite with a desired shape and size remains a challenge. In the present work nanocomposites of SnO–Fe2O3.are prepared by a sol gel route with Ferric chloride and Tin chloride as precursors. The prepared nanocomposites are characterised by X-ray Diffraction(XRD), Ultraviolet Visible Spectroscopy (UV),Scanning Electron microscopy(SEM) and Fourier Transform Infrared Spectroscopy(FTIR). The crystallite size obtained is approximately 60 nm, with a band gap of 3.55 eV. The band gap of the composite could further be tuned with nanosize.
{"title":"Preparation and characterisation of SnO–Fe2O3 nanocomposites","authors":"A. Subramaniyan, V. Veeraganesh","doi":"10.26655/AJNANOMAT.2019.1.6","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2019.1.6","url":null,"abstract":"Nanocomposites are novel materials which are yet to be explored and utilised to its complete potential. Nanocomposites can be tailored by the volume fraction of the matrix, fibre and also by the size and shape of the nanophase material in the composite. Preparing nanocomposite with a desired shape and size remains a challenge. In the present work nanocomposites of SnO–Fe2O3.are prepared by a sol gel route with Ferric chloride and Tin chloride as precursors. The prepared nanocomposites are characterised by X-ray Diffraction(XRD), Ultraviolet Visible Spectroscopy (UV),Scanning Electron microscopy(SEM) and Fourier Transform Infrared Spectroscopy(FTIR). The crystallite size obtained is approximately 60 nm, with a band gap of 3.55 eV. The band gap of the composite could further be tuned with nanosize.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91497635","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 : 2019-01-01DOI: 10.26655/AJNANOMAT.2019.1.7
M. Anbuvannan, M. Ramesh, E. Manikandan, R. Srinivasan
Nanocrystals of ZnO have been prepared using vitex negundo leaf extract via a simple green method. The confirmation of ZnO formation was carried out by UV–Vis-diffuse reflectance spectroscopy (UV-Vis DRS). The prepared nanocrystals were further characterized by photoluminescence (PL), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Field emission-scanning electron microscopy (FE-SEM) and Transmission electron microscopy (TEM). FE-SEM shows the ZnO nanoparticles are nanoplates like structure. With the aim of assessing the photocatalytic activities of ZnO nanocrystals the degradation of methylene blue (MB) under UV radiation was analyzed. Further, the antibacterial activities of synthesized ZnO nanoparticles were screened against S. aureus, S. paratyphi, V. cholerae, and E. coli.
{"title":"Vitex negundo leaf extract mediated synthesis of ZnO nanoplates and its antibacterial and photocatalytic activities","authors":"M. Anbuvannan, M. Ramesh, E. Manikandan, R. Srinivasan","doi":"10.26655/AJNANOMAT.2019.1.7","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2019.1.7","url":null,"abstract":"Nanocrystals of ZnO have been prepared using vitex negundo leaf extract via a simple green method. The confirmation of ZnO formation was carried out by UV–Vis-diffuse reflectance spectroscopy (UV-Vis DRS). The prepared nanocrystals were further characterized by photoluminescence (PL), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Field emission-scanning electron microscopy (FE-SEM) and Transmission electron microscopy (TEM). FE-SEM shows the ZnO nanoparticles are nanoplates like structure. With the aim of assessing the photocatalytic activities of ZnO nanocrystals the degradation of methylene blue (MB) under UV radiation was analyzed. Further, the antibacterial activities of synthesized ZnO nanoparticles were screened against S. aureus, S. paratyphi, V. cholerae, and E. coli.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80981879","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.5
Mukti Sharma, Saurabh Yadav, M. Srivastava, N. Ganesh, S. Srivastava
Phyto-compounds facilitated synthesis of nanoparticles has created an exceptional impact in the formation of nanoparticles and is used for the synthesis of modern nano drugs. Ignorance about phytochemical composition particularly knowledge of the bio-active principle of medicinal plant restricts the demonstration of the real picture of the enhancement of any bio-efficacy. The present communication scientifically established anti-inflammatory bio-efficacy in seeds of the folk plant Madhuca longifolia and its significant enhancement by bio-active principle (saponin) loaded silver nanoparticles (S@AgNps). A family of four saponins has been explored quantified (3.59%) and characterized (Micro Mass ESI-TOF MS spectra). Synthesis of S@AgNps has been conducted in a green single step and thoroughly characterized. In- vivo assessment of anti-inflammatory bio-efficacy has been carried out using carrageenan induced hind paw edema in Swiss albino mice model. Anti-inflammation bio-efficacy of native seed extract (15 mg/kg/bw) was found 46.84% which was further elevated and further rose to 56.10% by saponin at considerable low optimized dose (1.5 mg/kg/bw). Anti-inflammatory bio-efficacy was further successfully enhanced to (70.99%) by S@AgNps, almost close to that of reference drug (Diclofenac sodium; 76.42%). Saponin loaded silver nanoparticles (S@AgNps) prepared from the seed extract of the plant M. longifolia seem to be an ideal candidate for the development of complimentary herbal nanomedicine for anti-inflammation.
{"title":"Promising anti-inflammatory bio-efficacy of saponin loaded silver nanoparticles prepared from the plant Madhuca longifolia","authors":"Mukti Sharma, Saurabh Yadav, M. Srivastava, N. Ganesh, S. Srivastava","doi":"10.26655/AJNANOMAT.2018.9.5","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.5","url":null,"abstract":"Phyto-compounds facilitated synthesis of nanoparticles has created an exceptional impact in the formation of nanoparticles and is used for the synthesis of modern nano drugs. Ignorance about phytochemical composition particularly knowledge of the bio-active principle of medicinal plant restricts the demonstration of the real picture of the enhancement of any bio-efficacy. The present communication scientifically established anti-inflammatory bio-efficacy in seeds of the folk plant Madhuca longifolia and its significant enhancement by bio-active principle (saponin) loaded silver nanoparticles (S@AgNps). A family of four saponins has been explored quantified (3.59%) and characterized (Micro Mass ESI-TOF MS spectra). Synthesis of S@AgNps has been conducted in a green single step and thoroughly characterized. In- vivo assessment of anti-inflammatory bio-efficacy has been carried out using carrageenan induced hind paw edema in Swiss albino mice model. Anti-inflammation bio-efficacy of native seed extract (15 mg/kg/bw) was found 46.84% which was further elevated and further rose to 56.10% by saponin at considerable low optimized dose (1.5 mg/kg/bw). Anti-inflammatory bio-efficacy was further successfully enhanced to (70.99%) by S@AgNps, almost close to that of reference drug (Diclofenac sodium; 76.42%). Saponin loaded silver nanoparticles (S@AgNps) prepared from the seed extract of the plant M. longifolia seem to be an ideal candidate for the development of complimentary herbal nanomedicine for anti-inflammation.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80658209","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.3
E. A. Gomaa, M. Diab, A. El-Sonbati, Hamed M Abulenader, A. Helmy
The redox mechanisms were examined for copper chloride in absence and presence of Orange G (OG) at 19.1°C using Carbon glassy electrode (CGE). The supporting electrolyte used is 0.1 M KCl effect of scan rate was also studies for the redox reactions for CuCl2 alone and in presence of the ligand used orange G (OG). Stability constants for the complex formed from the interaction of CuCl2+ Orange G (OG) were evaluated with the different thermo chemical data. Effect of different scan rates were examined for cupric Chloride in absence and presence of the ligand used Orange G (OG).The different scans used are 0.1, 0.05, 0.02 and 0.01 V/Sec. The stability constants and Gibbs free energies of complexation were also estimated for the interaction of CuCl2 with Orange G (OG) in 0.1MKCl supporting electrolyte.
采用碳玻璃电极(CGE)，在19.1℃条件下，研究了无橙G (OG)和有橙G (OG)情况下氯化铜的氧化还原机理。采用0.1 M KCl作为支撑电解质，研究了CuCl2单独和配体为橘色G (OG)时氧化还原反应扫描速率的影响。用不同的热化学数据对CuCl2+橙G (OG)相互作用形成的络合物的稳定性常数进行了评价。用橙色G (OG)考察了不同扫描速率对氯化铜在配体缺失和存在情况下的影响。不同的扫描使用0.1,0.05,0.02和0.01 V/秒。同时计算了CuCl2与橙G (OG)在0.1MKCl负载电解质中相互作用的稳定常数和Gibbs自由能。
{"title":"Interaction Parameters for CuCl2 Plus Orange G (OG) at 19.1oC Using Carbon Glassy Electrode (CGE) in KCl Aqueous Solutions","authors":"E. A. Gomaa, M. Diab, A. El-Sonbati, Hamed M Abulenader, A. Helmy","doi":"10.26655/AJNANOMAT.2018.9.3","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.3","url":null,"abstract":"The redox mechanisms were examined for copper chloride in absence and presence of Orange G (OG) at 19.1°C using Carbon glassy electrode (CGE). The supporting electrolyte used is 0.1 M KCl effect of scan rate was also studies for the redox reactions for CuCl2 alone and in presence of the ligand used orange G (OG). Stability constants for the complex formed from the interaction of CuCl2+ Orange G (OG) were evaluated with the different thermo chemical data. Effect of different scan rates were examined for cupric Chloride in absence and presence of the ligand used Orange G (OG).The different scans used are 0.1, 0.05, 0.02 and 0.01 V/Sec. The stability constants and Gibbs free energies of complexation were also estimated for the interaction of CuCl2 with Orange G (OG) in 0.1MKCl supporting electrolyte.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85654923","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.8
M. Morsi, E. Gomaa, Alaa S. Nageeb
The redox behavior for nano cadmium chloride (Ncc) was studied using cyclic voltammetry in the absence and presence of isatin (Isa.) on the use carbon glassy electrode (CGE) prepared in laboratory in 0.1M KCl electrolytic solution at two different temperatures . All cyclic voltamograms were carried at the selected temperatures in the absence and presence of isatin (Isa.). The redox reactions and reaction mechanism were suggested. All avialable cyclic voltammetry and thermodynamic data were calculated from cyclic voltammetry measurments and their values were explained .All the thermodynamic parameters necessary for the interaction of nano CdCl2 withisatin were calculate,explained and interapretatited.
{"title":"Thermodynamic data (Voltammetrically) Estimated for the Interaction of Nano Cadmium Chloride (Ncc) with Isatin Using Glassy Carbon Electrode","authors":"M. Morsi, E. Gomaa, Alaa S. Nageeb","doi":"10.26655/AJNANOMAT.2018.9.8","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.8","url":null,"abstract":"The redox behavior for nano cadmium chloride (Ncc) was studied using cyclic voltammetry in the absence and presence of isatin (Isa.) on the use carbon glassy electrode (CGE) prepared in laboratory in 0.1M KCl electrolytic solution at two different temperatures . All cyclic voltamograms were carried at the selected temperatures in the absence and presence of isatin (Isa.). The redox reactions and reaction mechanism were suggested. All avialable cyclic voltammetry and thermodynamic data were calculated from cyclic voltammetry measurments and their values were explained .All the thermodynamic parameters necessary for the interaction of nano CdCl2 withisatin were calculate,explained and interapretatited.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80852581","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.4
R. Ghiasi, Faegheh Aghazadeh Kozeh Kanani
In the present research, the dipole moment, electronic structure, frontier orbitals energy, and aromaticity in the graphyne and Si-doped graphynes were studied with M062X quantum chemical computation. The relative energies of four possible isomers of Si-doped graphyne were calculated. Also, the ionization potential (IP) and electron affinity (EA) values of the studied molecules were reported. Frontier orbital (HOMO-LUMO) gap values were used for illustration of conductivity of these molecules. Aromaticity of the cycles of studied molecules was investigated by nucleus independent chemical shift (NICS) values and electron localization function (ELF).
{"title":"Theoretical insights of the electronic structures, conductivity, and aromaticiy of Graphyne and Si-doped Graphynes","authors":"R. Ghiasi, Faegheh Aghazadeh Kozeh Kanani","doi":"10.26655/AJNANOMAT.2018.9.4","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.4","url":null,"abstract":"In the present research, the dipole moment, electronic structure, frontier orbitals energy, and aromaticity in the graphyne and Si-doped graphynes were studied with M062X quantum chemical computation. The relative energies of four possible isomers of Si-doped graphyne were calculated. Also, the ionization potential (IP) and electron affinity (EA) values of the studied molecules were reported. Frontier orbital (HOMO-LUMO) gap values were used for illustration of conductivity of these molecules. Aromaticity of the cycles of studied molecules was investigated by nucleus independent chemical shift (NICS) values and electron localization function (ELF).","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90383307","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.1
A. Kumar, K. Sudhakara, B. P. Kumar, A. Raghavender, S. Ravi, Dunkana Negussa Keniec, Yong‐Ill Lee
Iron nanoparticles (NPs), due to their interesting properties, low cost preparation and many potential applications in ferrofluids, magneto-optical, catalysis, drug delivery systems, magnetic resonance imaging, and biology, have attracted a lot of interest during recent years. In this research, γFe2O3NPs were synthesized through simple co-precipitation method followed by thermal treatment at 300 °C for 2 hours. In our synthesis route, FeCl3 and FeCl2 were employed as precursors to synthesize γ-Fe2O3NPs. This approach is very effective and economical. The γ-Fe2O3NPs were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM),and vibrating sample magnetometer (VSM). The XRD and FT-IR results indicated the formation of γ-Fe2O3NPs. The SEM and TEM images contributed to the analysis of particle size and revealed that the γ-Fe2O3 particle size of the nanopowders ranged from 11 and 13 nm. Magnetic property was measured by VSM at room temperature and hysteresis loops exhibited that the γ-Fe2O3 NPs were super-paramagnetic. The synthesized γ-Fe2O3NPs were applied in order to synthesize mono-triazoles within one molecule using azide-alkyne cycloaddition reactions. KEYWORDS: γ-Fe2O3 Nanoparticles,
{"title":"Synthesis of γ-Fe2O3 Nanoparticles and Catalytic activity of Azide-Alkyne Cycloaddition Reactions","authors":"A. Kumar, K. Sudhakara, B. P. Kumar, A. Raghavender, S. Ravi, Dunkana Negussa Keniec, Yong‐Ill Lee","doi":"10.26655/AJNANOMAT.2018.9.1","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.1","url":null,"abstract":"Iron nanoparticles (NPs), due to their interesting properties, low cost preparation and many potential applications in ferrofluids, magneto-optical, catalysis, drug delivery systems, magnetic resonance imaging, and biology, have attracted a lot of interest during recent years. In this research, γFe2O3NPs were synthesized through simple co-precipitation method followed by thermal treatment at 300 °C for 2 hours. In our synthesis route, FeCl3 and FeCl2 were employed as precursors to synthesize γ-Fe2O3NPs. This approach is very effective and economical. The γ-Fe2O3NPs were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM),and vibrating sample magnetometer (VSM). The XRD and FT-IR results indicated the formation of γ-Fe2O3NPs. The SEM and TEM images contributed to the analysis of particle size and revealed that the γ-Fe2O3 particle size of the nanopowders ranged from 11 and 13 nm. Magnetic property was measured by VSM at room temperature and hysteresis loops exhibited that the γ-Fe2O3 NPs were super-paramagnetic. The synthesized γ-Fe2O3NPs were applied in order to synthesize mono-triazoles within one molecule using azide-alkyne cycloaddition reactions. KEYWORDS: γ-Fe2O3 Nanoparticles,","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79685171","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.6
M. Sameti, B. Amirian
In this paper, by using of density function theory (DFT), we have investigated the interaction and adsorption of Cd+2 ion on the interior and exterior surface of pristine, C, P and C&P doped BNNTs. The calculated results indicate that the adsorption of Cd+2 is exothermic in thermodynamic approach. With adsorbing Cd+2 ion the electrical and optical properties of system alter significantly from original state. Inspection of quantum, natural bond orbital (NBO) and reduced density gradient (RDG) results confirm that the pristine and doped BNNTs are a good candidate to making sensor and adsorbent of Cd+2 in biological and environmental system.
{"title":"A Quantum, NBO, RDG study the interaction of cadmium ion with the pristine, C, P and C&P doped (4,4) armchair boron nitride nanotube (BNNTs)","authors":"M. Sameti, B. Amirian","doi":"10.26655/AJNANOMAT.2018.9.6","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.6","url":null,"abstract":"In this paper, by using of density function theory (DFT), we have investigated the interaction and adsorption of Cd+2 ion on the interior and exterior surface of pristine, C, P and C&P doped BNNTs. The calculated results indicate that the adsorption of Cd+2 is exothermic in thermodynamic approach. With adsorbing Cd+2 ion the electrical and optical properties of system alter significantly from original state. Inspection of quantum, natural bond orbital (NBO) and reduced density gradient (RDG) results confirm that the pristine and doped BNNTs are a good candidate to making sensor and adsorbent of Cd+2 in biological and environmental system.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85570615","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 : 2018-09-01DOI: 10.26655/AJNANOMAT.2018.9.2
P. Amos, H. Louis, K. Adegoke, E. A. Eno, Akakuru Ozioma Udochukwu, T. O. Magub
Interestingly, copper has been identified as an ideal metal catalyst for an industrial scale electrochemical reduction of CO2 to various value-added chemicals relative to other metal catalysts reported so far. This is due to the fact that copper and copper-based materials have the potential to convert CO2 to oxygenates such as ethanol, methanol, formates etc. and hydrocarbons such as ethane, methane etc. Mechanistic details on how these products are formed on the catalyst-electrolyte interphase during the reduction process have remained relatively uncovered. This review, therefore, seeks to uncover the mechanism of electrochemical reduction of CO2 on Cu/Cu based electrodes, factors that affect catalytic activity and selectivity for these electrodes as reported in the various literature. This paper is therefore organized as follows: section 1 covers the introduction; an overview of some basic concepts in electrochemical CO2 reduction (ECR) was discussed in section 2, experimental studies were discussed in section 3, and finally the conclusion.
{"title":"Understanding the Mechanism of Electrochemical Reduction of CO2 Using Cu/Cu-Based Electrodes: A Review","authors":"P. Amos, H. Louis, K. Adegoke, E. A. Eno, Akakuru Ozioma Udochukwu, T. O. Magub","doi":"10.26655/AJNANOMAT.2018.9.2","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2018.9.2","url":null,"abstract":"Interestingly, copper has been identified as an ideal metal catalyst for an industrial scale electrochemical reduction of CO2 to various value-added chemicals relative to other metal catalysts reported so far. This is due to the fact that copper and copper-based materials have the potential to convert CO2 to oxygenates such as ethanol, methanol, formates etc. and hydrocarbons such as ethane, methane etc. Mechanistic details on how these products are formed on the catalyst-electrolyte interphase during the reduction process have remained relatively uncovered. This review, therefore, seeks to uncover the mechanism of electrochemical reduction of CO2 on Cu/Cu based electrodes, factors that affect catalytic activity and selectivity for these electrodes as reported in the various literature. This paper is therefore organized as follows: section 1 covers the introduction; an overview of some basic concepts in electrochemical CO2 reduction (ECR) was discussed in section 2, experimental studies were discussed in section 3, and finally the conclusion.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83948914","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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