A novel thermal decomposition method for the synthesis of ZnO nanoparticles from low concentration ZnSO4 solutions

Darezereshki, Esmaeel; Alizadeh, Mostafa; Bakhtiari, Fereshteh; Schaffie, Mahin; Ranjbar, Mohammad

doi:10.1016/j.clay.2011.07.023

Cited by 71 publications

(28 citation statements)

References 31 publications

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“…The broad band observed in the region 3363 cm −1 corresponds to O-H stretching vibrations arising from the moisture present in KBr which is used for making pellets in an open air [44]. The band at 1653 cm -1 present in the spectrum of the as-prepared sample is assigned to bending vibrations of water molecules [45]. In the spectrum of the as-prepared sample the band at 1322 cm -1 is attributed to the symmetric C=O bond vibrations [44].The band at about 833 cm -1 in the asprepared sample is due to Fe-OH bond vibrations [33].…”

Section: Resultsmentioning

confidence: 98%

Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

Sharma

Ghose

2015

Ceramics International

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Section: Resultsmentioning

confidence: 98%

Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

Sharma

Ghose

2015

Ceramics International

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“…thermogravimetric analysis is a process in which a substance is decomposed in the presence of heat which causes bonds within the molecules to be broken [28,36]. The TGA profile exhibits continuous weight loss with 3 quasi sharp changes occurring at 79°C, 228°C and 300°C followed by constant plateau.…”

Section: Thermogravimetric Analysis Tga/differential Scanning Calorimmentioning

confidence: 99%

The Study of Structural, Physical and Electrochemical Activity of Zno Nanoparticles Synthesized by Green Natural Extracts of Sageretia Thea

Mayedwa¹,

Khalil²,

Mongwaketsi³

et al. 2017

Nano Res Appl

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In this contribution an exceptionally simple, cost effective and reliable method for biosynthesis of ZnO nanoparticles through using Sageretia thea natural extracts as an effective chelating agent. The morphological analysis shows ZnO has nanoscale particles size 28.09 nm ± 5 nm, crystalline and possess distinct nanostructure hexagonal wurtzite structure. Effects of heat on ZnO synthesised at room temperature caused bonds with in the molecule to be broken exhibited continuous weight loss with 3 quasi sharp changes and 3 endothermic peaks occurring at 79°C, 228°C and 300°C. A proposed mechanism of reaction for Zn(NO 3 ) 2 6H 2 O precursor with bioactive compounds in Sageretia thea extract such as phenolic acid, flavonoids, natural sterolin and vitamin based compounds to form ZnO nanoparticles. Electrochemically ZnO nanoparticles are electroactive by exhibiting charge transfer resistance (R ct ) 82006 Ω and bare GCE 3.7707 × 10 5 Ω. Showed good catalytic and conductivity which can be applied for pseudo capacitors.

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“…Low absorption are also visible in the region of carbonate vibrations (1371 cm -1 and 1480 cm -1 ), but does not allow identification of the compound. So, Langite [Cu 4 (OH) 6 characteristic of vibrations in structural water molecules and the band at 3421 cm -1 is attributed to -OH-stretching [47]. Finally, the tiny dip in the spectra at 2364 cm -1 is due to atmospheric CO 2 [37,47].…”

Section: Resultsmentioning

confidence: 92%

Synthesis and characterization of tenorite (CuO) nanoparticles from smelting furnace dust(SFD)

Darezereshki

Bakhtiari

2013

J min metall B Metall

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Tenorite (CuO) nanoparticles were prepared from a dilute CuSO4 solution. The solution was obtained by leaching (pH=1.5) of smelting furnace dust of Sarcheshmeh Copper Complex, Iran. The recovery of copper from the acidic sulphate solution was carried out by solvent extraction using Lix 984-N. Tenorite nanoparticles were synthesized by direct thermal decomposition of Langite [Cu4(OH)6SO4(H2O)2] as a precursor which was calcinated in air for 2 h at 750°C. The Samples were characterized by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. The average diameter of the spherical pure CuO nanoparticles and their crystallite size were estimated to be 92 nm and 40nm, respectively. The simplicity of the present method suggests its potential application at industrial scale as a cheap and convenient way to produce pure CuO nanoparticles from dilute CuSO4 solutions obtained from leaching of smelting furnace dust

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A novel thermal decomposition method for the synthesis of ZnO nanoparticles from low concentration ZnSO4 solutions

Cited by 71 publications

References 31 publications

Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

The Study of Structural, Physical and Electrochemical Activity of Zno Nanoparticles Synthesized by Green Natural Extracts of Sageretia Thea

Synthesis and characterization of tenorite (CuO) nanoparticles from smelting furnace dust(SFD)

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