Hydrothermal synthesis of nanoporous zinc aluminate with high surface area

Zawadzki, M.; Wrzyszcz, J.

doi:10.1016/s0025-5408(00)00185-9

Cited by 131 publications

(60 citation statements)

References 7 publications

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“…They are commonly used in semiconductor and sensor technology as well as in heterogeneous catalysis [6][7][8][9][10][11][12][13][14]. Transition metal aluminates are commonly prepared by a solid state reaction [15], co-precipitation method [16], hydrothermal [17], combustion [18], and sol-gel [19,20]. The disadvantages of solid-state routes, such as inhomogeneity, lack of stoichiometry control, high temperature and low surface area, are improved when the material is synthesized using a solution-based method.…”

Section: Introductionmentioning

confidence: 99%

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

Maddahfar

Ramezani

Sadeghi

et al. 2015

J Mater Sci: Mater Electron

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In this work, modify sol-gel method was used to synthesize nickel aluminate (NiAl 2 O 4 ) nanoparticles with aid of nickel nitrate hexahydrate and aluminium nitrate nonahydrate as the starting reagents in the presence of ethanol as the solvent. Besides, to examine the effect of different chelate agent such as citric acid monohydrate, oxalic acid, salicylic acid, and malic acid on the morphology and particle size of final products several tests were performed. The structural, morphological, and optical properties of as-obtained products were characterized by techniques such as Fourier transform infrared spectroscopy, X-ray diffraction, energy dispersive X-ray microanalysis, scanning electron microscopy and ultraviolet-visible. The photocatalytic degradation was investigated using methyl orange under visible light irradiation (k [ 400 nm). The resulting degradation rates of the methyl orange were measured to be as high as 90 % in 270 min.

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Section: Introductionmentioning

confidence: 99%

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

Maddahfar

Ramezani

Sadeghi

et al. 2015

J Mater Sci: Mater Electron

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“…Transition metal aluminates are commonly prepared by a solid state reaction [7], coprecipitation method [8,9], hydrothermal [10][11][12], combustion [13] and sol-gel [14][15][16][17][18][19][20][21][22]. The disadvantages of solid-state routes, such as inhomogeneity, lack of stoichiometry control, high temperature and low surface area, are improved when the material is synthesized using a solution-based method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of spinel-type CuAl2O4 nanocrystalline by modified sol–gel method

Salavati‐Niasari

Davar

Farhadi

2009

J Sol-Gel Sci Technol

147

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Nanocrystalline Copper aluminate (CuAl 2 O 4 ) was prepared by sol-gel technique using aluminum nitrate, copper nitrate, diethylene glycol monoethyl ether and citric acid were used as precursor materials. This method starts from of the precursor complex, and involves formation of homogeneous solid intermediates, reducing atomic diffusion processes during thermal treatment. The formation of pure crystallized CuAl 2 O 4 nanocrystals occurred when the precursor was heat-treated at 600°C in air for 2 h. The stages of the formation of CuAl 2 O 4 , as well as the characterization of the resulting compounds were done using thermo-gravimetric analysis, X-ray diffraction, scanning electron microscopy and Fourier transform infrared spectroscopy. The products were analyzed by transmission electron microscopy and ultraviolet-visible (UV-Vis) spectroscopy to be round, about 17-26 nm in size and E g = 2.10 eV.

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“…ZnAl 2 O 4 has attracted considerable interest for electroluminescent thin film displays and opto-mechanical sensors [7][8][9]. ZnGa 2 O 4 and ZnAla 2 O 4 powders are easily prepared by solid phase reactions [10,11], or by chemical reactions from solutions [12,13].…”

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confidence: 99%

Luminescence properties of ZnGa₂O₄ and ZnAl₂O₄ spinels doped with Eu³⁺ and Tb³⁺ ions

Rusu

Ursaki

Novitschi

et al. 2009

Phys. Status Solidi (c)

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Spinel‐type ZnGa2O4 and ZnAl2O4 powders doped with Eu3+ and Tb3+ ions, including dual doping, have been prepared by solid phase reactions and by deposition from chemical solutions. XRD analysis demonstrates the high quality of spinel grains constituting the powder. The luminescence shows that the rare earth ions are incorporated in the defect regions at the grain boundaries. The emission spectra of the samples with europium are characterized by an intense emission in red region due to the 5D0 → 7F1,2 transitions of Eu3+ ions, whereas in the case of terbium the highest intensity corresponds to the green emission due to the 5D4 → 7F5 transitions of Tb3+ ions. The possibility to change the color of the emission from green to red by the variation of Tb and Eu doping concentration is demonstrated. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Hydrothermal synthesis of nanoporous zinc aluminate with high surface area

Cited by 131 publications

References 7 publications

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

Synthesis and characterization of spinel-type CuAl2O4 nanocrystalline by modified sol–gel method

Luminescence properties of ZnGa₂O₄ and ZnAl₂O₄ spinels doped with Eu³⁺ and Tb³⁺ ions

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Hydrothermal synthesis of nanoporous zinc aluminate with high surface area

Cited by 131 publications

References 7 publications

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

NiAl2O4 nanoparticles: synthesis and characterization through modify sol–gel method and its photocatalyst application

Synthesis and characterization of spinel-type CuAl2O4 nanocrystalline by modified sol–gel method

Luminescence properties of ZnGa2O4 and ZnAl2O4 spinels doped with Eu3+ and Tb3+ ions

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Luminescence properties of ZnGa₂O₄ and ZnAl₂O₄ spinels doped with Eu³⁺ and Tb³⁺ ions