Influence of oxygen pressure on the photocatalytic oxidation of the azo dye Chrome Yellow with TiO2 as the catalyst

Исаев, А. Б.; Magomedova, G. A.; Zakargaeva, N. A.; Adamadzieva, N. K.

doi:10.1134/s002315841102008x

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Photocatalytic oxidation of phenol pressurized oxygen, carried out in the cell described in more detail in our previous work [20,21]. The oxygen pressure created by feeding from a high pressure cylinder to the cell.…”

Section: Photocatalytic Studymentioning

confidence: 99%

Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO<sub>2</sub>

Orudzhev

Gasanova

Исаев

et al. 2016

MSF

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The photocatalytic oxidation of phenol on the composite copper oxide (II) modified titania photocatalyst (CuO/TiO2) with sunlight irradiation at high oxygen pressure are studied. The photocatalyst characterized by Scanning electron microscopy (SEM), UV-Visible Diffuse Reflectance spectroscopy (UV-DRS), Surface area analysis, and X-ray diffractometry (XRD). The composite photocatalyst based on the anatase includes 3% copper oxide (II). The CuO/TiO2 photocatalytic activity was investigated of phenol oxidation with sunlight irradiation at high oxygen pressure. The photocatalytic oxidation of phenol described Langmuir-Hinshelwood equation and calculated its parameters. With the increasing, the oxygen pressure the rate of phenol photocatalytic oxidation also increases. The quantum yield of the photocatalytic phenol oxidation at high oxygen pressure on the CuO/TiO2 composite photocatalyst are obtained.

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Section: Photocatalytic Studymentioning

confidence: 99%

Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO<sub>2</sub>

Orudzhev

Gasanova

Исаев

et al. 2016

MSF

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“…All solutions with the resulting catalysts were preliminarily held under darkroom conditions for 60 min to establish adsorption equilibrium. The MO dye content in the reactor was determined at regular intervals by photo colorimetry as described in [31]. Concurrently, the oxidation of MO without UV exposure was studied.…”

Section: Examination Of the Photocatalytic Properties Of The Coatingsmentioning

confidence: 99%

“…The existing mechanical, physicochemical, and biological methods of wastewater treatment provide a relatively low degree of purification, require the use of chemicals, and are highly time and energy consuming [4][5][6]. Therefore, the photocatalytic method based on the use of heterogeneous photocatalysis on semicon ductors is of considerable interest.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and photocatalytic activity of coatings based on the Ti x Zn y O z system

Bykanova

Сахненко

Ved

2015

Surf. Engin. Appl.Electrochem.

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Ti x Zn y O z coatings have been synthesized by anodic oxidation in alkaline solutions based on potas sium pyrophosphate and hydroxide. The elemental composition and surface morphology of the resulting coatings have been examined; the photocatalytic properties of the coatings have been determined. It has been found that the highest photocatalytic activity in the degradation of the methyl orange azo dye under UV irra diation is exhibited by a Ti x Zn y O z coating on the VT1 0 alloy with a zinc content of about 1 wt %. Process rate constants, synergy factors, and quantum efficiency of the coatings have been determined.

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“…Prior to this, all solutions with the prepared catalysts were stored for 24 hours in the dark to establish the adsorption equilibrium. The MO dye content in the reactor was determined at regular intervals using the photocolorimetric technique [24]. In parallel, the process of MO oxidation without ultraviolet was studied.…”

Section: Methodsmentioning

confidence: 99%

Characterization and photocatalytic activity of Ti/Ti_nO_m ∙ Zr_xO_y coatings for azo-dye degradation

et al. 2014

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Anodic oxidation of VT1-0 titanium and E-125 zirconium alloy in aqueous electrolyte solutions based on H 2 SO 4 and K 4 P 2 O 7 was used to obtain oxide coatings composed of Zr/ZrO 2 , Ti/TiO 2 , and mixed oxide systems Ti/Ti n O m • Zr x O y . It was shown that, depending on the electrolyte рН, the films contained from 0.17 to 2.1% wt. of zirconium. The catalytic activity of the synthesized coatings in the oxidation reaction of the methyl orange azo dye under UV irradiation was established. The process rate constants and synergy factors for the mixed systems were calculated.

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Influence of oxygen pressure on the photocatalytic oxidation of the azo dye Chrome Yellow with TiO2 as the catalyst

Cited by 11 publications

References 10 publications

Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO<sub>2</sub>

Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO<sub>2</sub>

Synthesis and photocatalytic activity of coatings based on the Ti x Zn y O z system

Characterization and photocatalytic activity of Ti/Ti_nO_m ∙ Zr_xO_y coatings for azo-dye degradation

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Influence of oxygen pressure on the photocatalytic oxidation of the azo dye Chrome Yellow with TiO2 as the catalyst

Cited by 11 publications

References 10 publications

Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO<sub>2</sub>

Influence of Oxygen Pressure to Photocatalytic Oxidation of Phenol on CuO/TiO<sub>2</sub>

Synthesis and photocatalytic activity of coatings based on the Ti x Zn y O z system

Characterization and photocatalytic activity of Ti/TinOm ∙ ZrxOy coatings for azo-dye degradation

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Characterization and photocatalytic activity of Ti/Ti_nO_m ∙ Zr_xO_y coatings for azo-dye degradation