Enrichment of optical, magnetic and photocatalytic properties in PVP capped CdO/SnO2 nanocomposites synthesized by microwave irradiation method

Subramanian, S.; Srinivasan, S.; Thangeeswari, T.; Ratchagar, V.

doi:10.1007/s10854-019-02351-4

Cited by 13 publications

(7 citation statements)

References 37 publications

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“…61 Direct band-energy of undoped and doped-CdO nanomaterials was observed from energy graph ((αhν) 2 vs E) by extrapolation on the x-axis. CdO band gap value is 3.28 ± 0.02 eV; 62,63 the increase in the band gap value for CdO samples indicates that the interfaces of Cd and O are effectively incorporated, along with particle size and lattice or surface defects. CdO exhibits lattice defects such as oxygen vacancies and quantum confinement effect.…”

Section: Resultsmentioning

confidence: 98%

Hydrothermal Synthesis of Fe-Doped Cadmium Oxide Showed Bactericidal Behavior and Highly Efficient Visible Light Photocatalysis

et al. 2023

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Cationic dyes present in industrial effluents significantly reduce the effectiveness of remediation operations. Considering the terrible impact of these pollutants on environment and biodiversity, investigating strategies to remove potentially harmful compounds from water is becoming an increasingly intriguing issue. In this work, we employed a simple hydrothermal technique to synthesize Fe-doped CdO (2, 4, and 6 wt %) nanostructures and assessed their efficacy in degrading methylene blue (MB) dye and inhibiting the growth of Staphylococcus aureus and Escherichia coli, respectively. Structural, morphological, and optical characterization of produced nanomaterials was also performed using X-ray diffraction, TEM, and UV absorption spectra. The photocatalytic decomposition of MB was significantly enhanced (58.8%) by using Fe (6 wt %)-doped CdO catalysts for 80 min under irradiation. In addition, 2.05−5.05 mm inhibitory zones were seen against Gram-positive bacteria (S. aureus), whereas the range for Gram-negative bacteria (E. coli) was 1.65−2.75 mm. These nanostructures were shown to be very effective inhibitors of beta-lactamase, D-alanine-D-alanine ligase B, and fatty acid synthase inhibitor by in silico molecular docking investigations.

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Section: Resultsmentioning

confidence: 98%

Hydrothermal Synthesis of Fe-Doped Cadmium Oxide Showed Bactericidal Behavior and Highly Efficient Visible Light Photocatalysis

et al. 2023

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“…Apart from the difference in the optimal temperatures of the sensing material to 3H-2B and interference analytes, the more polar functional groups and chemical bonds in the molecular structure of 3H-2B make it more reactive to be absorbed on the surface, so is the oxidation of absorbed 3H-2B molecules by chemisorbed oxygen species [66][67][68]. The catalytic activity of CdO and porous nanofiber structure with n-CdO/n-SnO 2 heterojunctions enhances the above reactions further, thus endow the sensor with a selective detection for 3H-2B [69]. Since the preparation temperature is much higher than the working temperature, the structure of CdO/SnO 2 nanofibers can remain relatively stable during the sensing process.…”

Section: Resultsmentioning

confidence: 99%

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

Jiang

Wang

Yang

2022

Mater. Res. Express

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Listeria monocytogenes (LM) is a pathogenic bacterium which can release 3-hydroxy-2-butanone (3H-2B) as a biological indicator. We report a high-performance 3H-2B gas sensing strategy for the selective detection of LM. This strategy is realized by n-CdO/n-SnO2 hetero-nanofibers with controllable compositions, synthesized via a facile one-step electrospinning method. The tailored morphologies and microstructures of CdO/SnO2 nanofibers were systematically characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). With the introduction of CdO into SnO2 nanofibers, x-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS) were performed to investigate the effects of crystal phases and elemental states on the 3H-2B sensing properties. According to the gas sensing results, the variation of Cd/Sn molar ratios has a great influence on the 3H-2B sensing properties of CdO/SnO2 nanofibers. The maximum response (45) to 5 ppm 3H-2B is found for 5 mol% CdO/SnO2 nanofibers at 260 °C. Meanwhile, 5 mol% CdO/SnO2 nanofibers exhibit a short response/recovery time (9 s/5 s), outstanding stability, and discriminative selectivity to 3H-2B. The enhanced sensing performance is mainly attributed to the synergy between the resistance modulation of n-CdO/n-SnO2 heterojunctions and the doping effect of Cd2+ ions.

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“…S : the specific surface area D is the crystallite size ρ : the density 8.15 g/cm 3 for CdO [34,35].…”

Section: S = (223)mentioning

confidence: 99%

A comparative study of the method of Williamson Hall and the pattern of cadmium oxide nanoparticles for X-rays

Mohammed¹

2021

TURCOMAT

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X-ray difraction (XRD) is an effective non-destructive instrument used in the determination and analysis of amorphous and crystalline materials. Three basic elements are the X-ray diffractometers: the X-ray tube, a retention of samples and an X-ray detector. In many industries such as diodes, transistors, detectors, solar and photovoltaic cells, cadmium oxide CdO nanoparticles are used. For this analysis, CdO nanoparticles are semi-conductors (type) and band-gaps of 2.5 eV and 1.98 eV in direct and indirect bands using cadmium oxide. Several temperatures, effects and parameters such as texture coefficient (TC), dislocation density(μ), special area (SSA), and micro strain were measured and determined (S). The peaks of the analysis were the extension of the nano structure, crystal size and grid pressure of the CdO and were measured using the Size Train Plot of Williamson-Hall (SSP). The composition of the particle is the cubic fluorite and spatial group Fm-3m (225). In the peaks resulting from the calcination process, strain enlargement was observed. Accordingly, the above procedure determined all physical parameters as a result of the diffraction effects.

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Enrichment of optical, magnetic and photocatalytic properties in PVP capped CdO/SnO2 nanocomposites synthesized by microwave irradiation method

Cited by 13 publications

References 37 publications

Hydrothermal Synthesis of Fe-Doped Cadmium Oxide Showed Bactericidal Behavior and Highly Efficient Visible Light Photocatalysis

Hydrothermal Synthesis of Fe-Doped Cadmium Oxide Showed Bactericidal Behavior and Highly Efficient Visible Light Photocatalysis

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

A comparative study of the method of Williamson Hall and the pattern of cadmium oxide nanoparticles for X-rays

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Enrichment of optical, magnetic and photocatalytic properties in PVP capped CdO/SnO2 nanocomposites synthesized by microwave irradiation method

Cited by 13 publications

References 37 publications

Hydrothermal Synthesis of Fe-Doped Cadmium Oxide Showed Bactericidal Behavior and Highly Efficient Visible Light Photocatalysis

Hydrothermal Synthesis of Fe-Doped Cadmium Oxide Showed Bactericidal Behavior and Highly Efficient Visible Light Photocatalysis

One-step synthesis of n-CdO/n-SnO2 heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

A comparative study of the method of Williamson Hall and the pattern of cadmium oxide nanoparticles for X-rays

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One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing