Synthesis of ZnO nanowires by thermal decomposition of zinc acetate dihydrate

Lin, Chih‐Cheng; Li, Yuan-Yao

doi:10.1016/j.matchemphys.2008.07.070

Cited by 230 publications

(86 citation statements)

References 24 publications

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“…The thermal decomposition of zinc acetate dihydrate was investigated in detail previously [23][24][25][26][27][28]. It was found that the zinc acetate dihydrate decomposed in two steps, below 100 °C the adsorbed water evolved, then between 150-300 °C the anhydrous zinc acetate decomposed, resulting in ZnO.…”

Section: Figmentioning

confidence: 99%

“…It was found that the zinc acetate dihydrate decomposed in two steps, below 100 °C the adsorbed water evolved, then between 150-300 °C the anhydrous zinc acetate decomposed, resulting in ZnO. During the decomposition CH 3 COOH, acetone and CO 2 evolution was reported [26][27][28].…”

Section: Figmentioning

confidence: 99%

“…In the second step (110-350 °C) the anhydrous zinc acetate decomposed in an endothermic reaction (295 °C), above 300 °C there were exothermic peaks (302, 316 °C) due to the combustion of the organic components. From the zinc acetate, first CH 3 COOH evolved, then above 260 °C acetone and CO 2 were released from the decomposition of the acetate ion [26][27][28]. The H 2 O evolution during this step could be explained by the burning of the organic contents of the zinc acetate and other components.…”

Section: Figmentioning

confidence: 99%

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Thermal study on the synthesis of the doped ZnO to be used in TCO films

Mihaiu

Szilágyi

Atkinson

et al. 2015

J Therm Anal Calorim

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ZnO, Li doped and Li,Ni co-doped ZnO powders to be later used as transparent conductive oxide (TCO) thin film were prepared by heat treatment of gels obtained from alcoholic Zn(CH 3 COO) 2 •2H 2 O, LiNO 3 •nH 2 O and NiSO 4 •6H 2 O solutions with (CH 3 CH 2 OH) 3 N as chelating agent. The properties of the powders and their thermal treatment were studied by thermogravimetric and termodifferential anlysis (TG/DTA), differential scanning calorimetry (DSC), evolved gas analysis coupled with mass spectroscopy (EGA-MS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive X-ray (SEM/ EDX). The as-prepared gels consisted of submicron platelet-like particles and contained zinc acetate dihydrate and hydrozincite in different amount and with different preferred orientations. During annealing the gels, zinc-acetate decomposed between 110-350 °C with the release of CH 3 COOH, acetone and CO 2 . The N content of the chelating agent was responsible for NH 3 and NO evolution. The thermal behavior of the doped 3 gels was similar, but there were also differences in the mass losses, amount of released gases.Based on TG/DTA data, ZnO powders were obtained from the gels by annealing both at 275 and 500 °C. After heating at 275 °C, the obtained powders consisted of spherical 1-2 micron grains of wurtzite. The inclusion of the dopants was successful according to EDX and cell parameter data. Thermal study of the powder annealed at 275 °C confirmed that they still contain some zinc acetate. In the case of the doped samples the mass loss was smaller, since the Li and Ni dopants catalized the composition of zinc acetate during the previous annealing at 275 °C. After annealing the gels at 500 °C, stable un-doped ZnO or doped ZnO particles were obtained.

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Section: Figmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

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Thermal study on the synthesis of the doped ZnO to be used in TCO films

Mihaiu

Szilágyi

Atkinson

et al. 2015

J Therm Anal Calorim

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“…• C, oriented nucleation and growth of crystalline zinc oxide usually take place during hydrothermal and precursor synthesis [44,50]. The reasons for this should be searched for in the peculiarities of the organic precursor decomposition.…”

Section: Morphology and Microstructure Of Zno And Zn-o-c Aggregates mentioning

confidence: 99%

“…The various wet chemical routes have been applied for the preparation of ZnO with different morphologies: nanowires [16,43,44], nanobelts [45], nanotubes [46][47][48][49], nanosheets [50], and nanospheres [51]. These products are usually single crystalline.…”

mentioning

confidence: 99%

Structural, Optical, and Photocatalytic Properties of Quasi-One-Dimensional Nanocrystalline ZnO, ZnOC:nC Composites, and C-doped ZnO

Шалаева

Гырдасова

Красильников

et al. 2014

Springer Proceedings in Physics

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Zinc oxide with a wurtzite structure belongs to a group of advanced functional materials because it possesses a unique set of properties. Its most important property is high photocatalytic activity in low-temperature oxidation reactions of toxic and colored organic compounds dissolved in water [1][2][3][4][5][6]. The action of oxide semiconductor photocatalysts is based on the generation of free carriers (electrons and holes) under exciting radiation, which take part in redox reactions on the oxide surface [7]. The photocatalytic activity can be increased first of all by creating a high specific surface area and a high concentration of native structural defects, which raises the specific concentration of sorption and oxidation centers on the catalyst surface [8][9][10]. There are numerous original researches and reviews devoted to various synthesis methods of nanosized ZnO materials having a high specific surface area [11][12][13][14][15][16][17]. Another way for improving the photocatalytic properties of wide-bandgap semiconductors is modification of the electron-energy spectrum of oxides. The results of first-principle quantum chemical calculations show that restructuring of the electron-energy spectrum and reduction of the optical gap can occur owing to native structural defects such as oxygen vacancies of . The effects of electron-energy-spectrum restructuring and photocatalytic activity enhancement induced by oxygen vacancies have been confirmed experimentally for nanostructured ZnO [20]. Reduction of recombination processes of generated electron-hole pairs also increases the photocatalytic activity [7]. The combination of the above methods for improving the photocatalytic activity seems promising for the development of ZnO-based photocatalysts. Nobel metal/ZnO nanocomposites exhibit very high cat-E. V. Shalaeva ( ) · O. I. Gyrdasova · V. N. Krasilnikov · M. A. Melkozerova · I.

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Effect of Polymer and Cell Membrane Coatings on Theranostic Applications of Nanoparticles: A Review

Rezaei,

Harun,

et al. 2024

Adv Healthcare Materials

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The recent decade has witnessed a remarkable surge in the field of nanoparticles, from their synthesis, characterization, and functionalization to diverse applications. At the nanoscale, these particles exhibit distinct physicochemical properties compared to their bulk counterparts, enabling a multitude of applications spanning energy, catalysis, environmental remediation, biomedicine, and beyond. This review focuses on specific nanoparticle categories, including magnetic, gold, silver, and quantum dots (QDs), as well as hybrid variants, specifically tailored for biomedical applications. A comprehensive review and comparison of prevalent chemical, physical, and biological synthesis methods are presented. To enhance biocompatibility and colloidal stability, and facilitate surface modification and cargo/agent loading, nanoparticle surfaces are coated with different synthetic polymers and very recently, cell membrane coatings. The utilization of polymer‐ or cell membrane‐coated nanoparticles opens a wide variety of biomedical applications such as magnetic resonance imaging (MRI), hyperthermia, photothermia, sample enrichment, bioassays, drug delivery, etc. With this review, the goal is to provide a comprehensive toolbox of insights into polymer or cell membrane‐coated nanoparticles and their biomedical applications, while also addressing the challenges involved in translating such nanoparticles from laboratory benchtops to in vitro and in vivo applications. Furthermore, perspectives on future trends and developments in this rapidly evolving domain are provided.

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Synthesis of ZnO nanowires by thermal decomposition of zinc acetate dihydrate

Cited by 230 publications

References 24 publications

Thermal study on the synthesis of the doped ZnO to be used in TCO films

Thermal study on the synthesis of the doped ZnO to be used in TCO films

Structural, Optical, and Photocatalytic Properties of Quasi-One-Dimensional Nanocrystalline ZnO, ZnOC:nC Composites, and C-doped ZnO

Effect of Polymer and Cell Membrane Coatings on Theranostic Applications of Nanoparticles: A Review

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