Studies on the structural and optical properties of zinc oxide nanobushes and Co-doped ZnO self-aggregated nanorods synthesized by simple thermal decomposition route

Freedsman, Joseph J.; Kennedy, L. John; Kumar, Rajesh; Sekaran, G.; Vijaya, J. Judith

doi:10.1016/j.materresbull.2010.06.011

Cited by 23 publications

(4 citation statements)

References 36 publications

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“…As a result, the finally formed CdO nanoparticles might connect with each other due to their nanoscale forces. The collective behavior of van der Waals forces and electrostatic interactions would have favored the self assembling of the CdO hollow spheres as observed from the TEM studies [32,33]. The present morphology is almost similar to the one reported by Zhang et al [34].…”

Section: Tem Studiessupporting

confidence: 88%

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

et al. 2011

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Section: Tem Studiessupporting

confidence: 88%

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

et al. 2011

Self Cite

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“…Fig. 4(a, b) revealed that the product CdO is composed of dispersed polycrystalline coagulated particles with diffraction rang and one phase bond with an average diameter of 16.50 nm which is compatible with the crystallite size calculated from the XRD studies [34][35][36]. However, on inspection of the micrographs (c of Fig.…”

Section: Tem and Saed Studies Of Cdo Nanoparticlessupporting

confidence: 76%

CdO Nanostructures: Synthesis, Characterization, and Photocatalytic Degradation of Malachite Green Dye in Aqueous Media

El-Hadary¹,

El-Feky²,

El‐Qanni³

et al. 2023

AJOCS

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Cadmium oxide (CdO) nanoparticles were prepared by using co-precipitation method and applied on photodegradation of malachite green (MG) dye in an aqueous solution. The as-prepared CdO nanoparticles were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), High-resolution transmission electron microscopy (HR-TEM) and (SAED), and Fourier transform infrared (FTIR) techniques. The XRD pattern confirmed the formation of crystalline CdO nanoparticles with cubic structure while the FESEM image validated the preparation of disc-like spherical irregular shape nanostructures agglomerated with the size of 10-30 nm. The as- prepared CdO nanoparticles exhibited 98 % photodegradation efficiency against the MG dye in 165 min of visible light irradiation at 0.05 g of dose. The experimental data has followed the pseudo-first-order kinetic model, and the rate constant value obtained is 0.002 min-1. Thus, the synthesized CdO nanoparticles degraded MG dye effectively and may be used for environmental remediation purposes.

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“…Hence the obtained ZnO and N-ZnO exhibit a wurtzite structure and the introduction of nitrogen does not change the crystal structure of ZnO. The crystal size of N-ZnO (24.0 nm) derived from XRD data 15,16 is smaller than that of ZnO (30.8 nm). This may be because of the addition of urea during preparation, which behaves as a surfactant that can inhibit the growth of ZnO.…”

Section: Characterization Of Photocatalysts X-ray Diffraction (Xrd)mentioning

confidence: 82%

Photocatalytic Activity of Heterostructures Based on ZnO and N-Doped ZnO

Qin

Xia

et al. 2011

ACS Appl. Mater. Interfaces

276

137

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Different composite films prepared by coupling ZnO and nitrogen-doped ZnO (N-ZnO) were used to photodegrade humic acids (HA). The catalysts exhibit an activity in the order of glass/ZnO/N-ZnO > glass/N-ZnO >glass/ZnO > glass/N-ZnO/ZnO when light is irradiated from the film to glass substrate. However, glass/ZnO/N-ZnO exhibits a lower activity than glass/N-ZnO/ZnO when light is illuminated from glass to film. Moreover, glass/ZnO/N-ZnO shows a lower activity when light is irradiated from glass to film than that irradiated in the opposite direction. These results suggest that it is not always the case that the presence of a heterojunction at interface of two semiconductors can definitely result in improving the photoactivity of the heterostructure although it can suppress the recombination of photogenerated charge carriers. They also indicate that photodegradation of HA is mainly via the oxidization by HO• (rather than directly by O(2)(-) and h(+)), which is produced mainly by the reactions with h(+). This implies the importance of fabrication a right heterojunction at the interface between the composite materials when they are used for photocatalysis. We envision that this work will help to develop new photocatalysts, as well as to understand better the photocatalytic mechanism.

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Studies on the structural and optical properties of zinc oxide nanobushes and Co-doped ZnO self-aggregated nanorods synthesized by simple thermal decomposition route

Cited by 23 publications

References 36 publications

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

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

CdO Nanostructures: Synthesis, Characterization, and Photocatalytic Degradation of Malachite Green Dye in Aqueous Media

Photocatalytic Activity of Heterostructures Based on ZnO and N-Doped ZnO

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