Indium hydroxide nanocubes and microcubes obtained by microwave-assisted hydrothermal method

Motta, F. V.; Lima, Ronaldo Cintra; Marques, A. P. A.; Li, M. S.; Leite, E. R.; Varela, José Arana; Longo, Elson

doi:10.1016/j.jallcom.2010.03.069

Cited by 28 publications

(20 citation statements)

References 23 publications

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“…The preparation of In 2 O 3 nanostructures by a simple method under mild conditions of low temperature and short synthesis time is not common. The hydrothermal method combined with microwave heating is an environmentally friendly route for synthesizing the precursors of this oxide [15]. The use of microwave radiation in the hydrothermal system, introduced by Komarneni et al [16] allows for the homogeneous formation of materials with excellent control of particle size with reduced preparation times [17,18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Er3+ ions on the phase formation and properties of In2O3nanostructures crystallized upon microwave heating

Lemos

Romeiro

Paula

et al. 2017

Journal of Solid State Chemistry

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A B S T R A C TRegular sized nanostructures of indium oxide (In 2 O 3 ) were homogeneously grown using a facile route, i.e. a microwave-hydrothermal method combined with rapid thermal treatment in a microwave oven. The presence of Er 3+ doping plays an important role in controlling the formation of cubic (bcc) and rhombohedral (rh) In 2 O 3 phases. The samples presented broad photoluminescent emission bands in the green-orange region, which were attributed to the recombination of electrons at oxygen vacancies. The photocatalytic activities of pure bcc-In 2 O 3 and a bcc-rh-In 2 O 3 mixture towards the UVA degradation of methylene blue (MB) were also evaluated. The results showed that Er +3 doped In 2 O 3 exhibited the highest photocatalytic activity with a photonic efficiency three times higher than the pure oxide. The improved performance was attributed to the higher surface area, the greater concentration of electron traps due the presence of the dopant and the possible formation of heterojunctions between the cubic and rhombohedral phases.

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Section: Introductionmentioning

confidence: 99%

Effect of Er3+ ions on the phase formation and properties of In2O3nanostructures crystallized upon microwave heating

Lemos

Romeiro

Paula

et al. 2017

Journal of Solid State Chemistry

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“…Figure 4A displays the pure In(OH) 3 image where a morphology of microcubes with irregularly shaped structures is visible, which shows that a large amount of microcubes was successfully obtained using the MAH treatment, according to the literature. [35][36][37][38][39] In this study, the cubeshaped morphology was obtained in a short reaction time (30 minutes) which demonstrates the high capability of MAH in obtaining the In(OH) 3 .…”

mentioning

confidence: 55%

Photoluminescent and antimicrobial properties of silver‐doped indium hydroxide synthesized by one‐step microwave‐assisted hydrothermal method

Neto

Tavares

Ferreira

et al. 2018

Int J Applied Ceramic Tech

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Silver-doped indium hydroxide In (1-x) (OH) 3 : x Ag (with x = 0, 1, 2, 4, and 8 mol %) of Ag nanoparticles were synthesized by the microwave-assisted hydrothermal (MAH) method at 140°C for 30 minutes. These nanoparticles were characterized by X-ray diffraction (XRD), fourier transformed infrared (FT-IR) spectroscopy, and optical diffuse reflectance. Photoluminescence (PL) spectra were acquired with a 350 nm beam of a krypton ion laser as an excitation source. The antibacterial activities of the samples were evaluated against gram negative Escherichia coli bacteria and gram positive Staphylococcus aureus bacteria using the disc diffusion method. The results showed that all diffraction peaks present in XRD patterns could be indexed to the cubic lattice related to the In(OH) 3 phase.Broadband photoluminescence behavior in visible range spectra was observed for all samples with a maximum peak centered in the blue and green regions. The antibacterial activities showed that In (1-x) (OH) 3 : x Ag nanoparticles have a promising bactericide that can be used for deactivating microbes. K E Y W O R D Sbactericide activity, doping, indium hydroxide, microwave, silver

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“…This ion has also attracted significant research attention due to its potential application as biological sensors, phosphors, electroluminescent devices, optical amplifiers or lasers when used as doping in a variety of materials 10,11 . Dutta et al 12 showed Indium hydroxides with different morphology such as spheres 13 , flowers 14,15 , cubes [16][17][18][19][20][21][22] , rods 23,24 , etc., have been synthesized by several synthesis methods. The physical and chemical properties of these powders can be influenced by particle shape and size distribution, which depend on the synthesis method.…”

Section: Introductionmentioning

confidence: 99%

“…In previous publications 17,33 , the synthesis and characterization of efficient luminescent indium hydroxides nanostructures, pure and doped with Tb…”

Section: Introductionmentioning

confidence: 99%

Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

et al. 2014

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Crystalline europium-doped indium hydroxide (In(OH) 3 :Eu) nanostructures were prepared by rapid and efficient Microwave-Assisted Hydrothermal (MAH) method. Nanostructures were obtained at low temperature. FE-SEM images confirm that these samples are composed of 3D nanostructures. XRD, optical diffuse reflectance and photoluminescence (PL) measurements were used to characterize the products. Emission spectra of europium-doped indium hydroxide (IH:xEu) samples under excitation (350.7 nm) presented broad band emission regarding the indium hydroxide (IH) , but the luminescence is drastically quenched for the IH matrix.

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Indium hydroxide nanocubes and microcubes obtained by microwave-assisted hydrothermal method

Cited by 28 publications

References 23 publications

Effect of Er3+ ions on the phase formation and properties of In2O3nanostructures crystallized upon microwave heating

Effect of Er3+ ions on the phase formation and properties of In2O3nanostructures crystallized upon microwave heating

Photoluminescent and antimicrobial properties of silver‐doped indium hydroxide synthesized by one‐step microwave‐assisted hydrothermal method

Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

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