Nanosized Powders as Reinforcement for Photoactive Composites (Overview)

Zahornyi, M. M.

doi:10.1007/s11106-017-9880-x

Cited by 8 publications

(4 citation statements)

References 91 publications

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“…In the past 10 years, TiO 2 nanopowder through photocatalytic activity, chemical resistance and non-toxic can be used as an effective agent for the treatment of organic and inorganic substances, pathogens of various types in the environment [7][8][9][10]. The unique properties of TiO 2 , especially nanoscale one, used to address important energy and environmental issues have caused the recent emergence of large scientific works on the synthesis and study of its antivirus properties and then search for ways of its practical application The antiviral activity of TiO 2 anatase nanoparticles against human adenovirus 5 serotypes was between 45% and 95% dependence on particles size [8].…”

Section: Methods Of Preparation and Properties Of Composites With Tio...mentioning

confidence: 99%

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Synthesis, Structure and Biomedical Application of Nanosize Composites Based on Oxide Semiconductor and Metal (Review)

2021

Nanosistemi, Nanomateriali, Nanotehnologii

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Today, nanocomposites based on magnetite (Fe 3 O 4 ), zinc oxide (ZnO), titanium oxide (TiO 2 ) doped with metal cations are widely used to create new kinds of biocompatible materials, which are characterized by unique complexes of physical-chemical properties. The semiconducting-nanoparticles' coating by metals leads to their stabilization in corrosive biological media and affects their electrical, magnetic, catalytic, and plasmonic properties too. The achievements during recent years in the field of producing composites based on nanosize particles of different nature are demonstrated in a given review article. The basic methods for materials' preparation, properties, and the possible fields of their application are summarized.Сьогодні нанокомпозити на основі магнетиту (Fe 3 O 4 ), оксиду Цинку (ZnO), оксиду Титану (TiO 2 ), леґованих катіонами металів, широко використовуються для створення нових видів біосумісних матеріялів, що характеризуються унікальними комплексами фізико-хемічних властивостей. Покриття напівпровідникових наночастинок металами приводить до стабілізації їх у корозійних біологічних середовищах і впливає також на їхні електричні, магнетні, каталітичні та плазмонні властивості. Досягнення останніх років у галузі виробництва композитів на основі нанорозмірних частинок різної природи продемонстровано в даній оглядовій статті. Підсумовано основні методи підготовки матеріялів, властивості та можливі сфери застосування їх.

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Section: Methods Of Preparation and Properties Of Composites With Tio...mentioning

confidence: 99%

“…The inclusion of noble metal cations in the crystal lattice of iron oxides enhances their optical properties [1-2]. In addition, effect of UV irradiation on metal oxide catalysts promotes to appearance their photobactericidal activity [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structure and Biomedical Application of Nanosize Composites Based on Oxide Semiconductor and Metal (Review)

2021

Nanosistemi, Nanomateriali, Nanotehnologii

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“…Photocatalytic degradation is an efficient and economical method that has attracted increasing attention because it is particularly useful for cleaning biologically toxic or non-degradable materials such as aromatics, pesticides, petroleum constituents, and volatile organic compounds in wastewater [1][2][3]. The contaminant materials are converted to a large extent into stable inorganic compounds such as water, carbon dioxide, and salts, i.e., they undergo mineralization [3].…”

Section: Introductionmentioning

confidence: 99%

Optical and Photocatalytic Activity of Polyaniline/TiO2 Composites with Anatase and P25 Nanoparticles

Zahornyi¹,

Tyschenko²,

Ragulya³

et al. 2021

J. Nano- Electron. Phys.

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“…Noble metal nanoparticles (NPs) can show SPR (surface plasmonic resonance), which can be tailored by engineering the shape, size, and surroundings [7][8][9][10]. Therefore, noble metal NPs cannot only strongly absorb visible light but also can serve as an electron sink and source of active reaction sites [11].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ag Content on the Structural, Optical, and Cytotoxicity Properties of TiO2 Nanopowders Grown from TiO(OH)2 Precursor by the Chemical Deposition Method

2021

Nanosistemi, Nanomateriali, Nanotehnologii

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А series of Ag/TiO 2 is prepared by the chemical deposition method using silver nitrate and suspension of TiO(OH) 2 following sonication and treatment up 600C. Silver nanoparticles are deposited on the surface and inside of TiO 2 nanoparticles depending on the Ag concentration. The Ag/TiO 2 composites are characterized by x-ray diffraction, transmission electron microscopy, scanning electron microscopy, Raman and photoluminescence spectroscopies. The optical activity of Ag/TiO 2 with significant attenuation of photoluminescence in the range of 480-600 nm, a shift of mode E g from 143 to 150 cm 1 and FWHM from 12 to 19 cm 1 are revealed due to decreasing of TiO 2 crystallites. The optical activity is increased after loading with Ag because metal particles offer electron traps to decrease the recombination of holes and electrons, especially, with Ag loading of 8 wt.%. The obtained results indicate lower toxicity of nanoparticles in the glycer-inewater suspension; regardless of the introduction of silver molecules in amount of 4 or 8 wt.%, their CC 50 values are of 50 g/mL and 3.9-58.5 g/mL for the MDBK and MDCK cells, respectively. Instead, TiO 2 nanoparticles in C 2 H 5 OH1.3-propanediol with the introduction of silver mole-

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Nanosized Powders as Reinforcement for Photoactive Composites (Overview)

Cited by 8 publications

References 91 publications

Synthesis, Structure and Biomedical Application of Nanosize Composites Based on Oxide Semiconductor and Metal (Review)

Synthesis, Structure and Biomedical Application of Nanosize Composites Based on Oxide Semiconductor and Metal (Review)

Optical and Photocatalytic Activity of Polyaniline/TiO2 Composites with Anatase and P25 Nanoparticles

The Effect of Ag Content on the Structural, Optical, and Cytotoxicity Properties of TiO2 Nanopowders Grown from TiO(OH)2 Precursor by the Chemical Deposition Method

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