A novel nanostructure of cadmium oxide synthesized by mechanochemical method

Tadjarodi, Aza­deh; Imani, Mina

doi:10.1016/j.materresbull.2011.07.016

Cited by 28 publications

(15 citation statements)

References 29 publications

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“…Up to date, CuO with different morphologies such as nanobelt 1,8 , nanospindle 2 , nanoring 2,4 , nanorod 1,4,6 , nanospherical 8 7,8,9,12,13 methods. One of the approaches to synthesize metal oxide nanostructures is the ball milling or mechanochemical method [14][15][16] . In fact, mechanical milling (MM) is an effective, useful, low cost and a simple technique, which is used to synthesize numerous materials including solid solutions, quasicrystalline, nanocrystalline and crystalline materials.…”

Section: Introductionmentioning

confidence: 99%

A green synthesis of copper oxide nanoparticles by mechanochemical method

Tadjarodi¹,

Roshani²

2014

10.5267/j.ccl

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Copper oxide nanoparticles were successfully synthesized by mechanochemical reaction, which is a green, low cost, solvent free, rapid method and followed by calcining treatment. Copper acetate monohydrate and urea were used as reagents and the resulted precursor was calcined at 500 C for 2h in air. The scanning electron microscopy (SEM) revealed the formation of nanoparticles with an average size of about 86 nm. The Fourier transform infrared (FT-IR) spectrum and X-ray powder diffraction (XRD) pattern of the product confirmed all of reflections can be indexed to pure phase of CuO with a monoclinic crystal system. The diffuse reflectance spectrum (DRS) showed a band gap of 1.7 eV.

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Section: Introductionmentioning

confidence: 99%

A green synthesis of copper oxide nanoparticles by mechanochemical method

Tadjarodi¹,

Roshani²

2014

10.5267/j.ccl

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“…Meanwhile, a long reaction time to synthesize this compound has been reported [21]. In our previous studies published elsewhere, we reported the preparation of CdO nanostructures by this method and using other reagents [22,23]. In this work, we changed the reactants and used urea as a promoter of reaction.…”

Section: Structural and Morphological Studiesmentioning

confidence: 99%

“…In this work, we changed the reactants and used urea as a promoter of reaction. It was observed that the change of agents leads to the alteration of the morphology of the product [22,23].…”

Section: Structural and Morphological Studiesmentioning

confidence: 99%

“…Up to now, various methods have been employed to prepare the cadmium oxide nanostructures such as microemulsion [2], chemical precipitation [19], sonochemical/hydrothermal technique [20], solvothermal process [1], and also mechanochemical process [21][22][23]. The feasibility of the mechanochemical method to synthesize the nanomaterials has been of interest in the past few decades.…”

Section: Introductionmentioning

confidence: 99%

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Application of a facile solid-state process to synthesize the CdO spherical nanoparticles

2013

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Mechanochemical process has attracted a worldwide interest in the synthesis of nanomaterials since reactions can be run in solid state without any organic solvent. Therefore, this method is an environmentally friendly reaction. Cadmium oxide is a category of the practical semiconductor metal oxides, which is widely applied in various scientific and industrial fields because of its catalytic, optical, and electrical properties. In this study, cadmium oxide spherical nanoparticles were successfully synthesized using a facile and effective solid-state process called mechanochemical reaction. This performance was carried out by employing cadmium acetate dihydrate and urea as reactants without any additives at room temperature and an adjusted rate of 30 Hz (1,800 rpm) for 130 min. Due to calcination of the resulting precursor at 500°C for 2 h in a furnace, the organic sections disappeared and only the CdO phase remained. The X-ray diffraction pattern confirmed the formation of the CdO phase with an excellent crystalline structure. Scanning electron microscopy and transmission electron microscopy images indicated that the morphology of the product is spherical nanoparticles with an average particle size of 46 nm and a standard deviation of 1.95. Particle size distribution was concluded using a statistical method and image processing program. Meanwhile, the solid-state diffuse reflectance spectrum of the resulting product was evaluated to study its optical property via measurement of the band gap energy value (E g ).

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“…He classified mechanochemistry as one of sub-disciplines of chemistry [32,33]. The main attributes of mechanochemistry include (1) it allows less or no solvents to be used, (2) it can cause defects in solids to create wellcrystalized cores of nanoparticles with disordered nearsurface shell regions, which effect on the reactivity, (3) it also provides an environmental friendly, rapid one-step synthesis method that can be scaled up to industrial productions, and (4) it has been used to prepare different types of organic and inorganic compounds [34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Mechanochemically prepared BiOCl nanoplates for removal of rhodamine B and pentachlorophenol

et al. 2015

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BiOCl was synthesized using bismuth nitrate pentahydrate and sodium chloride via ball milling for 15 (B15), 30 (B30), and 60 (B60) min. Scanning electron microscopy studies revealed the isolated nanoplate morphology for B15, an aggregated structure composed of nanoplates for B30, and a special three-dimensional morphology for B60. The X-ray diffraction patterns showed the purity and crystallinity of the products improved by increasing the milling time. Fourier transform infrared spectroscopy, photoluminescence spectroscopy, and nitrogen adsorption-desorption analysis using the BrunauerEmmett-Teller technique were also used to study the products. Diffuse reflectance spectroscopy studies revealed the band gap value of 3.27 eV for B30, B60 and a narrow band gap of 2.77 eV for B15. Photocatalytic studies toward rhodamine B degradation confirmed that the narrow band gap B15 was a stable and recyclable photocatalyst with the highest activity among the products. The effects of factors such as oxygen vacancies, surface defects, morphology, and band gap of products on the photocatalytic activities were studied. Comparison of rhodamine B and pentachlorophenol photodegradation processes revealed that both direct and indirect (dye-photosensitized) photocatalytic pathways could influence the removal results. Graphical abstract

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A novel nanostructure of cadmium oxide synthesized by mechanochemical method

Cited by 28 publications

References 29 publications

A green synthesis of copper oxide nanoparticles by mechanochemical method

A green synthesis of copper oxide nanoparticles by mechanochemical method

Application of a facile solid-state process to synthesize the CdO spherical nanoparticles

Mechanochemically prepared BiOCl nanoplates for removal of rhodamine B and pentachlorophenol

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