Synthesis and characterization of NiO and nanoparticles obtained by a sucrose-based route

Souza, E.A.; Duque, Juan G.; Kubota, Lauro T.; Meneses, C.T.

doi:10.1016/j.jpcs.2007.01.051

Cited by 44 publications

(28 citation statements)

References 33 publications

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“…To the best of our knowledge, however, spillover hydrogen effect [20] has never been used for more uniform electrochemical decoration of TiNT films with lower bandgap semiconducting nanospecies. It should be noted in this respect that, according to the literature [21], the resistance of TiO 2 crystallites as well as TiNT films can be reduced Fig. 2 a, b Cross-sectional FESEM images of TiNT film prepared and AC treated at U p-to-p = 1.2 V for 5 min in the same solutions as in Fig.…”

Section: Characterizationmentioning

confidence: 71%

Effect of hydrogen doping on the loading of titania nanotube films with copper selenide species via alternating current deposition

et al. 2015

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Fabrication of TiO 2 nanotube (TiNT) films nicely decorated with lower band gap semiconducting nanoparticles remains a challenging issue for photocatalytic and solar cell applications active under visible light irradiation. In this study, TiNT films were decorated with copper selenide species via alternating current deposition method. For the first time, to achieve uniform loading of copper selenide species inside the TiNT film, as-grown and calcined TiNT films before depositions were subjected to hydrogen doping in various solutions under DC and AC pretreatments as well as by treating TiNT in H 2 atmosphere. Different pretreatments resulted in different architectures of Cu x Se-in-TiNT formed by subsequent AC deposition from the acidic Cu(II)-H 2 SeO 3 solution allowing predictable to encase Cu 2 Se 3 , Cu 2 Se, CuSe, or Cu 2-x Se species in nm-scaled size. Field-emission scanning electron microscopy with EDS and X-ray mapping, low-angle X-ray diffraction, and diffuse reflectance spectroscopy were applied to characterize the morphology, composition, uniformity of loading, and optical properties of the fabricated heterostructures. Except light absorption, characteristic for anatase TiO 2 , the additional absorption edge in the visible region is formed in the TiNT films decorated with copper selenide.

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Section: Characterizationmentioning

confidence: 71%

Effect of hydrogen doping on the loading of titania nanotube films with copper selenide species via alternating current deposition

et al. 2015

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“…The solvent was distilled water (H 2 O) [13][14][15] . A commercial Hydroxyapatite -HA: Hidroxiapatita Fluidinova nanoXIM-HAp202 product 50120208 was used.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and characterization of nanocrystalline hydroxyapatite gel and its application as scaffold aggregation

et al. 2012

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The sol-gel process is a technique used to synthesize materials from colloidal suspensions and, therefore, is suitable for preparing materials in the nanoscale. In this work hydroxyapatite was used due to its known properties in tissue engineering. Hydroxyapatite Ca 10 (PO 4 ) 6 (OH) 2 is a bioactive ceramic which is found in the mineral phase of bone tissue and is known for its great potential in tissue engineering applications. For this reason, this material can be applied as particle aggregates on ceramic slurry, coating or film on materials with a poorer biological response than hydroxyapatite. In this work, hydroxyapatite gel was obtained by the sol-gel process and applied as nanoparticle aggregation in the mixture of hydroxyapatite and tricalcium phosphate to form a ceramic slurry. This process is the polymer foam replication technique used to produce scaffolds, which are used in tissue engineering. For HA gel characterization it was used enviromental scanning electron microscopy (ESEM), transmission electron microscopy (TEM), electron energy loss spectroscopy (EELS), scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray fluorescence (XRF). The crystallite size was calculated from XRD data using the Scherrer equation. The nanoparticles size before firing was approximately 5nm. The crystallite size calculated after calcination was approximately 63 nm. The EELS results showed that calcium phosphate was obtained before firing. After HA gel calcination at 500 °C the XRD results showed hydroxyapatite with a small content of beta-TCP. The scaffolds obtained by polymer foam replication technique showed a morphology with adequate porosity for tissue engineering.

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“…Among various nanoparticles, nickel oxide has attracted considerable attention due to its widespread application in different fields. Nickel oxide is an important transition metal oxide with cubic lattice structure [10]. Important applications of nanosized nickel oxide include preparation of cathode material of alkaline batteries, semiconductors, electrochemical capacitors, smart windows, as gas sensors, coatings, pharmaceuticals, catalysis, dye sensitized photocathodes, fuel cell electrodes and magnetic materials [11,12].…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology for optimization of Co(II) removal from synthetic wastewater by adsorption on NiO nanoparticles

Srivastava

Sharma

Sillanpää

2015

Journal of Molecular Liquids

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Synthesis and characterization of NiO and nanoparticles obtained by a sucrose-based route

Cited by 44 publications

References 33 publications

Effect of hydrogen doping on the loading of titania nanotube films with copper selenide species via alternating current deposition

Effect of hydrogen doping on the loading of titania nanotube films with copper selenide species via alternating current deposition

Synthesis and characterization of nanocrystalline hydroxyapatite gel and its application as scaffold aggregation

Application of response surface methodology for optimization of Co(II) removal from synthetic wastewater by adsorption on NiO nanoparticles

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