Zinc oxide-palladium material an efficient solar-light driven photocatalyst for degradation of congo red

Rokesh, Karuppannan; Jeganathan, K.; Jothivenkatachalam, Kandasamy

doi:10.17586/2220-8054-2016-7-4-740-746

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…For all these reasons, many studies focused on the improvement of ZnO photocatalytic performance, for example by the deposition of noble metals on ZnO surface, such as Au, Pt, Pd, and Ag [17][18][19][20], or the doping of ZnO [13,21,22].…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles Obtained by Supercritical Antisolvent Precipitation for the Photocatalytic Degradation of Crystal Violet Dye

et al. 2019

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In this work, the synthesis of zinc oxide (ZnO) photocatalyst from thermal decomposition of zinc acetate (ZnAc) nanoparticles obtained by supercritical antisolvent (SAS) precipitation was investigated. The optimization of calcination conditions of the SAS ZnAc was carried out, studying the effect of temperature (in the range 300–600 °C) on the production of ZnO nanoparticles. In particular, it was demonstrated that the organic residues in ZnO and its particle size, thus the specific surface area, strongly affect the photocatalytic performances. SAS micronization of ZnAc produces regular nanoparticles with a mean diameter of about 54.5 ± 11.5 nm, whereas unprocessed ZnAc is characterized by very large crystals. The experimental results evidenced that ZnAc prepared by SAS process calcined at 500 °C showed a regular nanometric structure (mean diameter: 65.0 ± 14.5 nm) and was revealed to be the best choice for the photocatalytic removal of crystal violet dye (CV). In fact, the photocatalytic activity performances of ZnO nanoparticles prepared by this route were higher with respect to that of ZnO from unprocessed ZnAc calcined at 500 °C (which is characterized by irregular tetrapods with mean size 181.1 ± 65.5 nm). The optimized photocatalyst was able to assure the complete CV decolorization in 60 min of UV irradiation time and a mineralization degree higher than 90% after 120 min of treatment time.

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Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles Obtained by Supercritical Antisolvent Precipitation for the Photocatalytic Degradation of Crystal Violet Dye

et al. 2019

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“…The modern level of nanotechnology development allows for the design of new polyfunctional materials possessing unique physicochemical properties that find wide application in the manufacturing of sensors [1,2], catalysts [3,4] hybrid functional coatings [5,6] and biomedical products [7]. At that, nanocrystalline cerium dioxide is considered to be one of the most promising materials for biomedical purposes [8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Cytotoxicity analysis of gadolinium doped cerium oxide nanoparticles on human mesenchymal stem cells

Попов¹,

Savintseva²,

Mysina³

et al. 2018

Nanosystems: Phys. Chem. Math.

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A complex analysis of cytotoxicity was performed for a nanodispersed sol of cerium dioxide doped with gadolinium (Ce 0.8 Gd 0.2 O 2−x) using a culture of mesenchymal stem cells. The absence of cyto-and genotoxicity over a wide range of concentrations (10 −5-10 −9 M) was demonstrated. At that, the highest concentration of Ce 0.8 Gd 0.2 O 2−x nanoparticles (10 −4 M) was found to slightly reduce the activity of intracellular dehydrogenase, yet not leading to the development of apoptosis and further cell death. The obtained results confirm a high degree of Ce 0.8 Gd 0.2 O 2−x nanoparticle biocompatibility, which opens prospects for their safe application as a contrasting agent in the magnetic resonance tomography.

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Zinc oxide-palladium material an efficient solar-light driven photocatalyst for degradation of congo red

Cited by 2 publications

References 19 publications

Zinc Oxide Nanoparticles Obtained by Supercritical Antisolvent Precipitation for the Photocatalytic Degradation of Crystal Violet Dye

Zinc Oxide Nanoparticles Obtained by Supercritical Antisolvent Precipitation for the Photocatalytic Degradation of Crystal Violet Dye

Cytotoxicity analysis of gadolinium doped cerium oxide nanoparticles on human mesenchymal stem cells

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