Synthesis and characterization of nano ZnO rods via microwave assisted chemical precipitation method

Sangari, N. Uma; Devi, S. Chitra

doi:10.1016/j.jssc.2012.08.011

Cited by 48 publications

(20 citation statements)

References 25 publications

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“…1. These peaks correspond quite well to the reported for crystalline RuxM1-xAl2O3 nanostructures [22].…”

Section: Ft-ir Analysis Of Ruxm1-xal2o3 Npssupporting

confidence: 89%

“…The XRD establishes the phase purity and crystallinity, confirm the product formation [26], is shown in Fig. 4 that presents the XRD patterns of the decomposition products of the complexes at 200 °C.…”

Section: Xrd Analysis Of Ruxm1-xal2o3 Npsmentioning

confidence: 60%

“…These nanostructured materials have been prepared by many methods such as microwave heating; non-aqueous approaches; chemicalprecipitation; sol-gel process; gas condensation; KSU. Journal of Engineering Sciences, 18 (1), 2015 hydrothermal process; aerosol spray process ; and hydrolysis in polyol medium [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Microwave-Assisted Synthesis And Characterizatıon of Novel RuxM1-xAl2O3 Nanoparticles

Köksal

Hamad

2015

KSU J. Eng. Sci.

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ABSTRACT:In this study, three metal composed of nanostructures of RuxM1-xAl2O3 have been successfully synthesized by a simple and rapid microwave-assisted method using thiourea as the fuel and ethylene glycol (EG) as the reducing agent. In comparison with conventional heating, microwave-assisted method shortens the reaction time. The morphology, particle size and microstructure were analyzed using SEM and XRD. Microwave irradiation has yielded nanosized spherical phase particles. The mean grain size of the nanoparticles less than 100 nm. The FT-IR studies confirms the presence of metal-oxygen and metal-oxygen-metal bond. XRD and SEM of the synthesized nanoparticles show that the prepared nano compounds have low crystallinity and sphere and flower-like shape. Flower shape Ru0.63Co0.37Al2O3, Ru0.93Ni0.07Al2O3 and Ru0.54Cu0.46Al2O3 particles were obtained. Generally, the crystallite sizes were found in the range of 41-94 nm. The EDX analysis indicated that the elements of Ru, Fe, Co, Ni, Cu and Al existed in the products. The surface treatment of spray gold for elimination of charged effects were responsible for the signals of gold in the EDX analysis of the products. In other words, no impurities like N, S, P, Cl, etc. were detected except for Ru, Fe, Co, Ni, Cu and Al elements, indicating the nanoparticles were pure. Keywords: Nanoparticles, microwave-assisted, metal oxideYeni RuxM1-xAl2O3 Nano Parçacıkların Mikrodalga Destekli Sentezi ve Tanımlanması ÖZET: Bu çalışmada, yapısında üç metal bulunan nanoyapılar basit ve hızlı mikrodalga-yardımlı metod ile sentezlenmiştir. Bu sentezlerde tiyoüre yakıt olarak kullanılırken, etilen glikol (EG) yüzey gerilimini düşürücü ve indirgen olarak kullanılmıştır. Bilinen eski yöntemlerle kıyaslandığında bu yöntem reaksiyon süresini kısaltmıştır. Oksitlerin morfolojisi, parça büyüklüğü ve mikroyapısı SEM ve XRD ile analiz edilmiştir. Mikrodalga radyasyonu nanobüyüklükte küresel fazlı parçacıklar üretmiştir. Nanoparçacıkların ortalama tanecik boyutu 100 nm'den küçüktür. FT-IR çalışmaları metal-oksijen ve metal-oksijen-metal bağlarının varlığını doğrulamaktadır. Sentezlenen nanopartiküllerin XRD ve SEM sonuçları nano bileşiklerin düşük kristaliniteye sahip olduğunu, küresel ve çiçek-benzer şekillerde olduğunu göstermektedir. Çiçek tipi Ru0.63Co0.37Al2O3, Ru0.93Ni0.07Al2O3 ve Ru0.54Cu0.46Al2O3 parçacıkları elde edilmiştir. Genelde, kristal büyüklükleri 41-94 nm aralığındadır. EDX analizleri sentezlenen bileşiklerin yapısında Ru, Fe, Co, Ni, Cu ve Al elementlerinin varlığını doğrulamaktadır. Bileşiklerin EDX analizlerinde gözlemlenen Altın elementine ait pik, yük etkisini yok etmek amacıyla yüzeye püskürtülen Altın'a aittir. Ek olarak, yapılarda N, S, P ve Cl gibi safsızlıkların olmayışı ve yalnız Ru, Fe, Co, Ni, Cu ve Al elementlerin gözlemlenmesi, nanoparçacıkların saf olduğunu göstermektedir.

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“…1. These peaks correspond quite well to the reported for crystalline RuxM1-xAl2O3 nanostructures [22].…”

Section: Ft-ir Analysis Of Ruxm1-xal2o3 Npssupporting

confidence: 89%

Section: Xrd Analysis Of Ruxm1-xal2o3 Npsmentioning

confidence: 60%

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Microwave-Assisted Synthesis And Characterizatıon of Novel RuxM1-xAl2O3 Nanoparticles

Köksal

Hamad

2015

KSU J. Eng. Sci.

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“…ZnO nanostructures can be synthesized in many nanostructure forms, such as nanorods, nanowires, nanotubes, nanowalls, nanobelts [8][9][10], etc. using different methods such as hydrothermal method [8], chemical bath deposition, thermal evaporation, chemical vapor deposition, molecular beam epitaxy, microwave assisted chemical precipitation, spray pyrolysis [11][12][13][14], etc. All of these synthesis techniques have some distinguished advantages in comparison with others.…”

Section: Introductionmentioning

confidence: 99%

Preparation and spectroscopic analysis of zinc oxide nanorod thin films of different thicknesses

Mia

Rana

Pervez

et al. 2017

Materials Science-Poland

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Zinc oxide thin films with different thicknesses were prepared on microscopic glass slides by sol-gel spin coating method, then hydrothermal process was applied to produce zinc oxide nanorod arrays. The nanorod thin films were characterized by various spectroscopic methods of analysis. From the images of field emission scanning electron microscope (FESEM), it was observed that for the film thickness up to 200 nm the formed nanorods with wurtzite hexagonal structure were uniformly distributed over the entire surface substrate. From X-ray diffraction analysis it was revealed that the thin films had good polycrystalline nature with highly preferred c-axis orientation along (0 0 2) plane. The optical characterization done by UV-Vis spectrometer showed that all the films had high transparency of 83 % to 96 % in the visible region and sharp cut off at ultraviolet region of electromagnetic spectrum. The band gap of the films decreased as their thickness increased. Energy dispersive X-ray spectroscopy (EDS) showed the presence of zinc and oxygen elements in the films and Fourier transform infrared spectroscopy (FT-IR) revealed the chemical composition of ZnO in the film.

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“…Precipitate can be formed as nuclei and then nuclei grows to become particles. 7 Nuclei formation and growth of nuclei depend on the concentration of precursor solution and reactive time. 8 The precipitation method can control different parameters such as solution concentration and pH.…”

Section: Introductionmentioning

confidence: 99%

Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam

Suntako

2015

Bull Mater Sci

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ZnO nanoparticles were synthesized by a precipitation method in aqueous media from zinc nitrate hexahydrate and sodium hydroxide. The synthesized ZnO nanoparticles exhibited a crystalline structure with hexagonal structure of the wurtzite. The morphology of the synthesized ZnO nanoparticles presented a spherical shape with the average primary size of 54.53 nm and the specific surface area of 20.28 m 2 g −1 . The effect of the synthesized ZnO nanoparticles by the precipitation method as a crosslinking agent for chloroprene rubber foam (CR foam) on cure characteristics, mechanical properties and morphologies was investigated. The aim of this study is to vary the synthesized ZnO nanoparticles' level in the range of 0.5-5 parts per hundred parts of rubber (phr) compared with the conventional ZnO at 5 phr. The rheological characterization showed that the maximum torque (M H ), the minimum torque (M L ), the differential torque (M H -M L ) and Mooney viscosity increased with the increase in synthesized ZnO nanoparticles' content, whereas the optimum cure time (t 90 ) and scorch time (T 5) decreased. On the other hand, the mechanical properties such as hardness, tensile strength and specific gravity were improved. For CR foam, the results compared to the amount of conventional ZnO, only 60 wt% (3 phr) nano-ZnO was enough to obtain similar cure characteristics and mechanical properties. The synthesized ZnO nanoparticles showed the mechanical properties higher than conventional ZnO because of small particle size and large specific surface area which led to the increase in the degree of crosslinking.

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Synthesis and characterization of nano ZnO rods via microwave assisted chemical precipitation method

Cited by 48 publications

References 25 publications

Microwave-Assisted Synthesis And Characterizatıon of Novel RuxM1-xAl2O3 Nanoparticles

Microwave-Assisted Synthesis And Characterizatıon of Novel RuxM1-xAl2O3 Nanoparticles

Preparation and spectroscopic analysis of zinc oxide nanorod thin films of different thicknesses

Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam

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