Room temperature fiber optic gas sensor technology based on nanocrystalline Ba3 (VO4)2: Design, spectral and surface science

Subramanian, M.; Dhayabaran, V. Violet; Shanmugavadivel, M.

doi:10.1016/j.materresbull.2019.110560

Cited by 15 publications

(4 citation statements)

References 34 publications

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“…The results confirm that the generated nanoparticles are highly pure. Additionally, the estimates obtained from the EDX measurement agree with the elemental theoretical computations 14 .…”

Section: Edxsupporting

confidence: 76%

Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Vanadium Oxide Nanoparticles Using Punica Granatum Extract

Karem

Ali

2023

Baghdad Sci.J

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This study includes using green or biosynthesis-friendly technology, which is effective in terms of low cost and low time and energy to prepare V2O5NPs nanoparticles from vanadium sulfate VSO4.H2O using aqueous extract of Punica Granatum at a concentration of 0.1M and with a basic medium PH= 8-12. The V2O5NPs nanoparticles were diagnosed using several techniques, such as FT-IR, UV-visible with energy gap Eg = 3.734eV, and the X-Ray diffraction XRD was calculated using the Debye Scherrer equation. It was discovered to be 34.39nm, Scanning Electron Microscope (SEM), Transmission Electron Microscopy TEM. The size, structure, and composition of synthetic V2O5NPs were determined using the (EDX) pattern, Atomic force microscopy AFM. The adsorption experiment was successfully conducted on metal ions M (II), such as Co, Ni, and Cu. The results proved removal simultaneously from water using V2O5NPs based on surface shape on the affinity of three metal ions. The adsorption rate of Ni(II) is the highest one in the time scale and conditions of our experiment at all surfaces, while Co(II) and Cu(II) ions are close in magnitude. The removal efficiencies of mixed (M+2 = Co, Ni, and Cu) ions with λmax for Co, Ni, and Cu ions are 510,425 and 814 nm 56.66%, 77.00%, and 27.23%, respectively. The Antimicrobial activity of V2O5NPs in three concentrations, 25%, 50%, and 75%, was tested against Escherichia coli, Staphylococcus aureus, and Candida albicans fungus. The results of the inhibition of vanadium oxide nanoparticles against positive and negative bacteria were compared with the standard drug Amoxicillin and the results of fungus inhibition with the standard drug Metronidazole. It was found that nano-oxide is more effective at 75% concentration.

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“…The results confirm that the generated nanoparticles are highly pure. Additionally, the estimates obtained from the EDX measurement agree with the elemental theoretical computations 14 .…”

Section: Edxsupporting

confidence: 76%

Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Vanadium Oxide Nanoparticles Using Punica Granatum Extract

Karem

Ali

2023

Baghdad Sci.J

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“…The FT-IR spectrum of the precursor powder exhibits characteristic peaks associated with C-H, N-H, and C-O stretching frequencies, indicating the presence of organic impurities in the sample. 27 A minor peak at 3725 cm −1 corresponds to O-H stretching caused by trace amounts of citric acid and water content in the precursor. The broad peak in the range of 2327 to 2830 cm −1 indicates C-H bonds, while the peak at 1634 cm −1 represents C-O bonds from the tartrate group.…”

Section: Resultsmentioning

confidence: 99%

“…It has been found to be effective in applications including Fiber Bragg Gratings (FBG), luminescent materials, laser action, and chemical sensors. [27][28][29][30][31][32][33] For example, L. Krishna Bharat et al investigated sol-gel-derived barium orthovanadate phosphors for white light-emitting diodes, aiming to enhance their efficiency and performance. 34 Barium vanadate has also been extensively studied for its electrochemical performance in Zn-ion and Li-ion batteries.…”

mentioning

confidence: 99%

Optical, Dielectric, and Electromagnetic Microwave Absorption Properties of Hexagonal Ba₃(VO₄)₂

Chenna,

Panda,

Sharma

et al. 2024

ECS J. Solid State Sci. Technol.

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We used a simple sol-gel synthesis technique to prepare hexagonal Ba3(VO4)2. X-ray diffraction (XRD), Fourier transform infrared (FTIR), and Raman spectroscopy were performed, confirming that Ba3(VO4)2 has a hexagonal structure. To investigate the influence of interfacial interactions at grain boundaries on microwave absorption, atomic force microscopy studies were performed. UV-Vis studies show the direct and indirect optical energy band gaps of Ba3(VO4)2 were determined as 3.81and 3.25 eV, respectively. The dielectric studies reveal that the dielectric constant (ε׳) of Ba3(VO4)2 ranges from 1.55 to 6.02 in the frequency range of 2-20 GHz, with an average ε׳ value of 3.84. The microwave absorption properties of Ba3(VO4)2 were evaluated in the frequency range of 8-18 GHz, covering the X and Ku bands at different thicknesses from 4.5 to 8 mm. The highest effective absorption bandwidth (EAB) of 4.44 GHz was observed within the frequency range of 12.83-17.27 GHz, with a maximum reflection loss of -71.43 dB at a resonance frequency of 15.05 GHz. Additionally, at a thickness of 7.5 mm, Ba3(VO4)2 achieved a maximum reflection loss of -75.22 dB at 10.03 GHz, with an EAB of 2.94 GHz (covering the X band from 8.57 GHz to 11.51 GHz).

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“…the unknown node for near zero emission state monitoring of SF6 gas) and the sensor layer node with known position (i.e. the sensor anchor node for near zero emission state monitoring of SF6 gas) (Mansouri et al, 2019;Subramanian et al, 2019). Let p represent the number of monitoring nodes and q represent the number of anchor nodes, the parameters of the monitoring nodes in the two-dimensional plane are:…”

Section:    mentioning

confidence: 99%

Nano Sensor for Near Zero Emission Monitoring of Sulfur Hexafluoride

2022

Global NEST: The International Journal

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<p>Aiming at the problems of long monitoring time, low sensitivity and low precision of traditional methods, a nano sensor for near zero emission monitoring of sulfur hexafluoride (SF6) was proposed. The characteristics of SF6 gas were analyzed. The infrared spectrum of SF6 gas was obtained by spectral absorption method. The laser of Laixi series is used as the hardware of SF6 gas monitoring. The nano sensor array is designed, and the near zero emission state of SF6 is monitored by using the nano sensor node optimization method. The experimental results show that compared with the traditional method, the nano sensor method can shorten the monitoring time (less than 3.0 seconds), improve the monitoring sensitivity and accuracy. The results show that the method can monitor the air emission and environmental pollution accurately and timely.</p>

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Room temperature fiber optic gas sensor technology based on nanocrystalline Ba3 (VO4)2: Design, spectral and surface science

Cited by 15 publications

References 34 publications

Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Vanadium Oxide Nanoparticles Using Punica Granatum Extract

Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Vanadium Oxide Nanoparticles Using Punica Granatum Extract

Optical, Dielectric, and Electromagnetic Microwave Absorption Properties of Hexagonal Ba₃(VO₄)₂

Nano Sensor for Near Zero Emission Monitoring of Sulfur Hexafluoride

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Room temperature fiber optic gas sensor technology based on nanocrystalline Ba3 (VO4)2: Design, spectral and surface science

Cited by 15 publications

References 34 publications

Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Vanadium Oxide Nanoparticles Using Punica Granatum Extract

Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Vanadium Oxide Nanoparticles Using Punica Granatum Extract

Optical, Dielectric, and Electromagnetic Microwave Absorption Properties of Hexagonal Ba3(VO4)2

Nano Sensor for Near Zero Emission Monitoring of Sulfur Hexafluoride

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Product

Resources

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Optical, Dielectric, and Electromagnetic Microwave Absorption Properties of Hexagonal Ba₃(VO₄)₂