Simple and rapid synthesis of Cadmium Oxide (CdO) nanospheres by a microwave-assisted combustion method

Selvam, N. Clament Sagaya; Kumar, Ravi; Yogeenth, K.; Kennedy, L. John; Sekaran, G.; Vijaya, J. Judith

doi:10.1016/j.powtec.2011.04.031

Cited by 80 publications

(30 citation statements)

References 45 publications

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“…Guo et al [17] synthesized C-doped Zn 3 (OH) 2 V 2 O 7 nanorods with higher photoactivity than ZnO via a one-step method involving a hydrothermal process in the presence of polyethylene glycol and ethylenediamine tetraacetic acid. Cadmium oxide as a narrow band-gap semiconductor, with specific optical 2 International Journal of Photoenergy and electrical properties, has been widely used specifically in the field of optoelectronic devices including solar cells, transparent electrodes, and sensors [18][19][20][21]. However, to the best of our knowledge, little work has been attempted to present the photocatalytic property of nonmetal-doped CdO photocatalysts due to special band structure [22].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Hydrogen Production over C-Doped CdO Photocatalyst in NaS/NaSO Solution under Visible Light Irradiation

Zhuang

Long

et al. 2012

International Journal of Photoenergy

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The C-doped CdO photocatalysts were simply prepared by high-temperature solid-state process. The as-prepared photocatalysts were characterized by X-ray powder diffraction (XRD), diffuse reflectance spectroscopy (UV-Vis DRS), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results demonstrated that the carbon was doped into CdO, resulting in the red-shift of the optical absorption of CdO. The photocatalytic behavior of CdO and C-doped CdO was evaluated under the visible light irradiation by using the photocatalytic hydrogen evolution as a model reaction. The C-doped CdO photocatalysts had higher photocatalytic activity over parent CdO under visible light irradiation. The results indicated that the H2production was due to the existence of CdS and the enhancement of visible light photocatalytic activity of H2production was originated from the doping of carbon into the CdO lattice. The probably reaction mechanism was also discussed and proposed.

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Section: Introductionmentioning

confidence: 99%

Enhanced Hydrogen Production over C-Doped CdO Photocatalyst in NaS/NaSO Solution under Visible Light Irradiation

Zhuang

Long

et al. 2012

International Journal of Photoenergy

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“…This value is almost ∼ 1.3 eV larger compared to their value in bulk form 11 and ∼ 1eV larger compared to reported value for spherical nanoparticles. 17 The enhanced value of direct band gap may be due to the change in shape, which account for shifting of delocalized band. Further, we also plotted (αhν) 1/2 vs. hν and the curve is shown in Figure 2(c).…”

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confidence: 99%

Synthesis, characterizations and antimicrobial activities of well dispersed ultra-long CdO nanowires

Kumar

Ojha

2013

AIP Advances

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We present a simple, efficient, low cost and template free method for preparation of well dispersed ultra-long (1 μm) CdO nanowires. The CdO nanowires were characterized by x-ray diffraction (XRD), Transmission electron microscopy (TEM), UV-visible spectroscopy and Raman measurements. The direct and indirect band gaps were calculated to be 3.5 eV and 2.6 eV, respectively. In the Raman spectra only second order features were observed. The CdO nanowires were used to study antimicrobial activities against B.subtilis and E.coli microbes. It shows antimicrobial activity against B.subtilis and E.coli. However, the antimicrobial activities are better against B.subtilis than that of E.coli

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“…The XRD patterns were recorded for synthesized sample shown in Figure 1 The lattice parameter of synthesized sample is found to be a = 0.742, b = 0.834 nm and c = 1.009 nm. The average size of the particles was calculated using Scherrer formula 8 is L = 0.89/ β cosθ Where L is the crystallite size, λ, the X-ray wavelength, θ, the Bragg diffraction angle and β, the peak width at half maximum (PWHM). The average crystallite size 'L' calculated from the (0 2 2) diffraction peak was found to be 18 nm.…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

“…Recently, there is a growing interest in the study of low-dimensional oxide nanomaterials, due to their potential applications in nanodevices. Metal vanadates, as one of the most important family of functional materials, have numerous applications in the fields of catalysts, 7 optical devices, 8 magnetic materials, 9 as well as battery materials. [10][11][12]…”

Section: Introductionmentioning

confidence: 99%

Microwave Assisted Synthesis, Characterization and Photocatalytic Activity of Zn2V2O7 Nanospheres

2014

Chem Sci Trans

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Zinc vanadate (Zn 2 V 2 O 7) nanoparticles have been synthesized successfully by simple microwave assisted combustion method using diethylene glycol as fuel. The structure and morphology of the synthesized zinc vanadate have been investigated by X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), Raman Spectra, high resolution scanning electron microscopy (HR-SEM), Energy Dispersive X-ray analysis (EDX), diffused reflectance spectroscopy (DRS) and Photoluminescence studies(PL). The XRD reveals that the formation of monoclinic structure of Zn 2 V 2 O 7 whereas the formation of Zn 2 V 2 O 7 phase is confirmed by FT-IR spectra and Raman Spectra. HR-SEM confirms the formation of spherical hollow nanospheres. The optical properties were determined by UV-DRS and PL studies. The synthesised Zn 2 V 2 O 7 has been found to show superior photocatalytic activity in the photodegradation of malachite green (MG) dye.

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Simple and rapid synthesis of Cadmium Oxide (CdO) nanospheres by a microwave-assisted combustion method

Cited by 80 publications

References 45 publications

Enhanced Hydrogen Production over C-Doped CdO Photocatalyst in NaS/NaSO Solution under Visible Light Irradiation

Enhanced Hydrogen Production over C-Doped CdO Photocatalyst in NaS/NaSO Solution under Visible Light Irradiation

Synthesis, characterizations and antimicrobial activities of well dispersed ultra-long CdO nanowires

Microwave Assisted Synthesis, Characterization and Photocatalytic Activity of Zn2V2O7 Nanospheres

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