Synthesis of nano-AlN powders from Al wire by arc plasma at atmospheric pressure

Li, Lin; Ni, Guohua; Zhao, Yuyang; Guo, Qing; Lin, Qing; Sui, Sen-Fang; Xie, Hong-Bin; Duan, Wen-Xue

doi:10.1016/j.ceramint.2018.08.284

Cited by 13 publications

(6 citation statements)

References 26 publications

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“…As you can see from the diagram, after the comparison with the reference card, it is true that the peak of sample at 34.47° can be assigned to the (002) peak of ZnO, according to JCPDS: 36‐1451 . In accordance with JCPDS: 04‐0787, the peaks at 38.4°, 44.7°, 65.1°, and 78.2° can be indexed to (111), (200), (220), and (311) planes of Al . To understand the chemical composition and the state of the components of ZnO nanospheres, X‐ray photoelectron spectroscopy (XPS) was investigated and the results are shown in Figure b‐d.…”

Section: Resultsmentioning

confidence: 95%

Hydrangea‐like ZnO nanospheres on Al substrates via hydrothermal synthesis for photocatalytic activity

Zeng

Gao

Wang

et al. 2019

J Chinese Chemical Soc

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Hydrangea-like ZnO nanospheres were fabricated on Al substrates via a facile hydrothermal method with only one step. Scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and photoluminescence were used to investigate their morphology, component, structure, and optical properties. The hierarchical nanospheres are fabricated by 2D nanosheets with the shape of 3D sphere. By adjusting the reaction time, the formation process was monitored. The photocatalytic activity of ZnO nanospheres was also investigated for their dye degradation, and they exhibit good photocatalytic ability to congo red, with the degradation rate of 98.4%. Besides, they have universal catalysis effect on methyl orange. K E Y W O R D Scrystal growth, hydrothermal method, photocatalytic activity, plate assembly, ZnO nanosphere

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Section: Resultsmentioning

confidence: 95%

Hydrangea‐like ZnO nanospheres on Al substrates via hydrothermal synthesis for photocatalytic activity

Zeng

Gao

Wang

et al. 2019

J Chinese Chemical Soc

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“…Four peaks of Al substrate were observed and could be assigned to (111), ( 200), (220), and (311) lattice planes, respectively. 25 Apart from Al peaks, the peaks of ZnO (002), ZnS (200), ZnS (222), and CuS (204) were observed. 26 The possible reason for low peak intensity of ZnS and CuS could be that the thickness of ZnS and CuS shell was too thin; besides, the crystal quality might not be very well.…”

Section: Resultsmentioning

confidence: 99%

Low‐temperature synthesis of ZnO/ZnS/CuS heterojunction based on solution‐processed nanosheet array with enhanced photocatalytic activity

Zeng

Yuan

et al. 2021

J Chinese Chemical Soc

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ZnO/ZnS/CuS net-like nanosheet (NS) heterojunction array was fabricated via a simple solution method at a low temperature. Morphology and structure of ZnO/ZnS/CuS NS were characterized by scanning electron microscope (SEM) and Transmission electron microscope (TEM). With tiny particles attaching on the rough surface, the thin ZnO/ZnS/CuS NS grew vertically and arranged regularly on Al substrate, providing large effective illumination area and massive active sites. Elemental composition and valence state were confirmed with energy dispersive X-ray spectrometry and X-ray photoelectron spectroscopy (XPS), respectively. The UV-vis absorbance spectra indicated that the absorption range of ZnO NS was expanded to the visible region effectively, and the original absorption intensity in the ultraviolet region was also improved after being coated with ZnS and CuS. Photocatalytic activity tests of ZnO, ZnO/ZnS, and ZnO/ZnS/CuS NS were carried out with methyl orange as a simulated pollutant, in which ZnO/ZnS/CuS heterojunction showed great enhancement when making comparison with pure ZnO and ZnO/ZnS NS. After five reuse cycles, photocatalytic performance could still be maintained well, indicating the good catalytic stability. Finally, a probable photocatalytic mechanism was also discussed.

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“…Atomic nitrogen produced in plasma can be used to modify the surface of materials such as polymers, metals, and semiconductors since it can alter the surface's chemical composition and physical properties. The diffusion of atomic nitrogen from plasma to the surface of metals play a crucial role in enhancing the hardness and wear resistance [8] of various materials, including steel [9], titanium [10], * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Concentration measurements of atomic nitrogen in an atmospheric-pressure RF plasma jet using a picosecond TALIF

Khan,

Dvořák,

Bolouki

et al. 2024

Plasma Sources Sci. Technol.

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The absolute concentration and spatial distribution of ground-state atomic nitrogen (N) in an atmospheric pressure plasma jet were measured using the two-photon absorption laser-induced fluorescence (TALIF). The jet was ignited by radio frequency (RF) voltage in argon (or argon with nitrogen admixture) flowing through a silica tube. The spatially resolved measurements of atomic nitrogen concentration were realized in the effluent of the jet. In a pure argon plasma, the N concentration was increased with the distance from the silica tube and reached the maximum value (8*1014 cm-3) at the distance of 15 mm, and then sharply decreased at the end of the plume. On the contrary, plasma ignited in Ar with nitrogen admixture, the maximum N concentration was located directly at the end of the silica tube, where plasma starts to blow out into the ambient air. The highest N concentrations for 0.5 % and 2 % of N2 in the feed gas were 3*1015 cm-3 and 8*1015 cm-3, respectively.

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Synthesis of nano-AlN powders from Al wire by arc plasma at atmospheric pressure

Cited by 13 publications

References 26 publications

Hydrangea‐like ZnO nanospheres on Al substrates via hydrothermal synthesis for photocatalytic activity

Hydrangea‐like ZnO nanospheres on Al substrates via hydrothermal synthesis for photocatalytic activity

Low‐temperature synthesis of ZnO/ZnS/CuS heterojunction based on solution‐processed nanosheet array with enhanced photocatalytic activity

Concentration measurements of atomic nitrogen in an atmospheric-pressure RF plasma jet using a picosecond TALIF

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