Synthesis, FTIR, UV–Vis and Photoluminescence characterizations of triethanolamine passivated CdO nanostructures

Anandhan, Karnambaram; Kumar, R. Thilak

doi:10.1016/j.saa.2015.04.035

Cited by 51 publications

(9 citation statements)

References 18 publications

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“…6a, revealing the broad absorption bands from * 380 to * 460 nm. Anandhan et al [29] reported a similar evidence of absorption band spectra in CdO nanostructure synthesized via wet chemical method. It is also evident from Fig.…”

Section: Uv-visible Spectroscopymentioning

confidence: 66%

Synthesis and Characterization of CdO–SnO2 Nanocomposites Prepared by Hydrothermal Method

Sirohi

Kumar

Singh

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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In this work, (1-x)CdO-xSnO 2 nanocomposites (B 0.15) have been synthesized via hydrothermal route. The structural study reveals that CdO nanostructures possess crystalline phase and cubic structure. The CdO-SnO 2 nanocomposites possess both cubic and orthorhombic structure with good crystallinity. The crystallite size in the nanocomposites was found to be in the range of 9.6-19.6 nm. Field emission scanning electronic microscopy and highresolution tunnelling microscopy analysis confirm the presence of both cubic and orthorhombic structures which is also confirmed from X-ray diffraction studies. Fourier transform infrared spectroscopy (FTIR) studies confirm that CdO-SnO 2 nanocomposites possess the characteristics band of both CdO and SnO 2 nanostructures. The UV-visible absorption studies confirm that the optical absorption band in CdO-SnO 2 nanocomposites possesses both blue and red shift as compared to that of CdO nanostructures. Photoluminescence spectroscopy studies reveal the appearance of strong emission peak at 513, 469 and 369 nm corresponding to green, blue and violet emission spectrum, respectively, in CdO-SnO 2 nanocomposites. The FTIR studies confirm the presence of hydroxyl and water functional group due to atmospheric water vapours and chemical bonding in CdO and CdO-SnO 2 nanocomposites. Raman spectroscopy confirms the presence of Raman bands of both CdO and SnO 2 phases in the CdO-SnO 2 nanocomposites.

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Section: Uv-visible Spectroscopymentioning

confidence: 66%

Synthesis and Characterization of CdO–SnO2 Nanocomposites Prepared by Hydrothermal Method

Sirohi

Kumar

Singh

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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“…On the basis of the available scientific literature related to the use of triethylamine as a modifier of oxide materials, it should be noted that stretching vibrations of the C-H groups (1390 cm −1 ) are indicated as the main band indicating effective modification [ 35 ]. Moreover, Liu et al [ 36 ], showed that in the materials modified with TEA one can observe the disappearance of the band at 1248 cm −1 , which is caused by the interactions between the base material and the modifier.…”

Section: Resultsmentioning

confidence: 99%

The TiO2-ZnO Systems with Multifunctional Applications in Photoactive Processes—Efficient Photocatalyst under UV-LED Light and Electrode Materials in DSSCs

et al. 2021

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The main goal of the study was the hydrothermal-assisted synthesis of TiO2-ZnO systems and their subsequent use in photoactive processes. Additionally, an important objective was to propose a method for synthesizing TiO2-ZnO systems enabling the control of crystallinity and morphology through epitaxial growth of ZnO nanowires. Based on the results of X-ray diffraction analysis, in the case of materials containing a small addition of ZnO (≥5 wt.%), no crystalline phase of wurtzite was observed, proving that a high amount of modified titanium dioxide can inhibit the crystallization of ZnO. The transmission electron microscopy (TEM) results confirmed the formation of ZnO nanowires for systems containing ≥ 5% ZnO. Moreover, for the synthesized systems, there were no significant changes in the band gap energy. One of the primary purposes of this study was to test the TiO2-ZnO system in the photodegradation process of 4-chlorophenol using low-power UV-LED lamps. The results of photo-oxidation studies showed that the obtained binary systems exhibit good photodegradation and mineralization efficiency. Additionally, it was also pointed out that the dye-sensitized solar cells can be a second application for the synthesized TiO2-ZnO binary systems.

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“…The emission peak observed at 463, 615, 684 nm correspond to the host material i.e. 463 nm, 684 nm peaks correspond to CdO [43,45] and 615 nm peak correspond to zinc phosphate [1]. The emission peak observed at 536 nm corresponds to 6 A 1g (S) / 4 T 1g (G) transition of Mn 2þ ions, it occurs due to the recombination of electrons and holes from conduction band to valence band [46,47].…”

Section: Photoluminescence Studiesmentioning

confidence: 96%

Synthesis and characterization of Mn2+ doped CdOZn3(PO4)2 nanocomposites

Bhaskararao

Satyavathi

Rao

et al. 2017

Journal of Molecular Structure

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Synthesis, FTIR, UV–Vis and Photoluminescence characterizations of triethanolamine passivated CdO nanostructures

Cited by 51 publications

References 18 publications

Synthesis and Characterization of CdO–SnO2 Nanocomposites Prepared by Hydrothermal Method

Synthesis and Characterization of CdO–SnO2 Nanocomposites Prepared by Hydrothermal Method

The TiO2-ZnO Systems with Multifunctional Applications in Photoactive Processes—Efficient Photocatalyst under UV-LED Light and Electrode Materials in DSSCs

Synthesis and characterization of Mn2+ doped CdOZn3(PO4)2 nanocomposites

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