Enhancement of ZnO-Based Photocatalyst Activity by RF Discharge-Plasma Treatment*

Savastenko, N. A.; Filatov, I. I.; Lyushkevich, Veronika; Chubrik, N. I.; Габдуллин, М. Т.; Ramazanov, T. S.; Abdullin, H. A.; Kalkozova, V. A.

doi:10.1007/s10812-016-0359-1

Cited by 11 publications

(4 citation statements)

References 24 publications

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“…Furthermore, ZnO Ps have been applied to textile fibers to improve flame retardancy and thermal stability and to achieve moisture management and thermal insulation, electrical conductivity, and hydrophobicity [5][6][7][8][9][10][11][12][13][14][15][16]. The photocatalytic properties also enable ZnO Ps to be used as degradation agents for different pollutants, such as dyes and surfactants present in textile industry wastewaters [12,[17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide for Functional Textile Coatings: Recent Advances

2019

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The use of ZnO for the functionalization of textile substrates is growing rapidly, since it can provide unique multifunctional properties, such as photocatalytic self-cleaning, antimicrobial activity, UV protection, flame retardancy, thermal insulation and moisture management, hydrophobicity, and electrical conductivity. This paper aims to review the recent progress in the fabrication of ZnO-functionalized textiles, with an emphasis on understanding the specificity and mechanisms of ZnO action that impart individual properties to the textile fibers. The most common synthesis and application processes of ZnO to textile substrates are summarized. The influence of ZnO concentration, particle size and shape on ZnO functionality is presented. The importance of doping and coupling procedures to enhance ZnO performance is highlighted. The need to use binding and seeding agents to increase the durability of ZnO coatings is expressed. In addition to functional properties, the cytotoxicity of ZnO coatings is also discussed. Future directions in the use of ZnO for textile functionalization are identified as well.

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Section: Introductionmentioning

confidence: 99%

Zinc Oxide for Functional Textile Coatings: Recent Advances

2019

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“…where C 0 is the starting dye concentration; C(t) the dye concentration after irradiation for time t; A 465 0 and A 465 t dye solution optical densities at 465 nm before and after irradiation for time t. The dye degradation eciency E eff was calculated using the formula [1,13]:…”

Section: Resultsmentioning

confidence: 99%

Porous zinc oxide plate with micro- and nanoelements of the surface structure for heterogeneous photocatalysis

Hrytsak¹,

Turko²,

Vasilyev³

et al. 2022

J. Phys. Stud.

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The zinc oxide porous plate with micro-and nanoelements of the surface structure was obtained by sintering metallic zinc powder, characterized and tested for the photodegradation of model organic dye (methyl orange) in water. The kinetics of dye photodegradation was studied via measurement of variation of the optical density at the maximum observed for the dye at 465 nm. After 30 min of illumination, the photodegradation eciency of methyl orange was found to be about 100 % when the ZnO plate with overall dimensions of 35 mm × 7 mm × 1 mm was used. The reaction rate constant calculated using the rst-order approximation was equal to 2.7 • 10 −4 sec −1 . It is necessary to point out that the sample keeps its integrity after multiple experiments, which is important for practical applications. The obtained results evidently demonstrate the potential of the method of sintering metallic zinc powder for the production of ecient catalysts.

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“…Nanoscale zinc oxide (ZnO) and titanium dioxide (TiO 2 ) are absorbers of ultraviolet (UV) light and are considered as the more efficient semiconductors that promote photocatalysis [1][2][3][4]. This is because of their attractive proprieties, such as their low cost, non-toxic nature, and high catalytic efficiency [5,6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of ZnO and TiO₂ Nanopowders and their Application for Photocatalytic Water Treatment

et al. 2020

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Zinc oxide ZnO nanoparticles synthesized by sol-gel method and commercial titanium dioxide TiO2 were studied in the present work. The structural properties of the ZnO and TiO2 nanoparticles were determined by Fourier transform infrared (FTIR), X-ray diffraction (XRD) and Raman spectra techniques (RS). The average crystallite sizes were calculated by using the powder X-ray and were found to be 48 nm and 20 nm and the specific surface areas were about 1047 m 2 g −1 and 381 m 2 g −1 for ZnO and TiO2, respectively. The FTIR and Raman spectroscopy results have shown high purity of the ZnO and TiO2 samples and they are consistent with the one obtained from XRD. The ZnO and TiO2 nanoparticles were used as catalysts for the elimination of an azo dye, Mordant Violet 5 (MV5), in aqueous solution, by an advanced oxidation process which is heterogeneous photocatalysis. Synthesized ZnO was more efficient than commercial TiO2 to degrade MV5 under UV irradiation. The adsorption of MV5 on TiO2 and ZnO was found favorable by the Langmuir approach. The MV5 adsorption constant on TiO2 was higher than that obtained in the case of ZnO. The photocatalytic reaction of MV5 in presence of each catalyst was investigated at different concentration of the dye and at different conditions of pH. The solar radiation of MV5 in the presence of each catalyst was also tested.

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Enhancement of ZnO-Based Photocatalyst Activity by RF Discharge-Plasma Treatment*

Cited by 11 publications

References 24 publications

Zinc Oxide for Functional Textile Coatings: Recent Advances

Zinc Oxide for Functional Textile Coatings: Recent Advances

Porous zinc oxide plate with micro- and nanoelements of the surface structure for heterogeneous photocatalysis

Characterization of ZnO and TiO₂ Nanopowders and their Application for Photocatalytic Water Treatment

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Enhancement of ZnO-Based Photocatalyst Activity by RF Discharge-Plasma Treatment*

Cited by 11 publications

References 24 publications

Zinc Oxide for Functional Textile Coatings: Recent Advances

Zinc Oxide for Functional Textile Coatings: Recent Advances

Porous zinc oxide plate with micro- and nanoelements of the surface structure for heterogeneous photocatalysis

Characterization of ZnO and TiO2 Nanopowders and their Application for Photocatalytic Water Treatment

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Characterization of ZnO and TiO₂ Nanopowders and their Application for Photocatalytic Water Treatment