Methylene Blue Dye Removal from Aqueous Solutions and Photocatalytic Activity Using UV/Nano-TiO : Operating Parameters Study

Jafarnejad, Ehsan; Jabrail, Nemati

doi:10.1080/22297928.2015.1129289

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The previous studies showed that the temperature increases the removal of dye from wastewater (38)(39)(40)(41). In contrast, several studies reported a negative effect of increasing temperature on dye removal from wastewater (42)(43)(44). The effect of temperature on the removal of dye using UV radiation is shown in Figure 2b.…”

Section: 2 the Effect Of Temperaturementioning

confidence: 90%

Comparison of Reactive Blue 203 Dye Removal Using Ultraviolet Irradiation, Ferrate (VI) Oxidation Process and MgO Nanoparticles

Talaiekhozani

Torkan²,

Banisharif

et al. 2018

Avicenna J Environ Health Eng

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This study investigated the effect of various parameters on the removal of Reactive Blue 203 dye from wastewater using ferrate(VI) oxidation process, ultraviolet radiation (UV) radiation and MgO nanoparticles under batch mode. Although several studies have been carried out on dye removal, there is no study on the removal of Reactive Blue 203 dye using ferrate(VI) oxidation process, UV radiation, and MgO nanoparticles. Therefore, the aim of this study is to investigate the effect of different factors including pH, temperature, contact time, the intensity of UV radiation and the concentration of MgO nanoparticles on Reactive Blue 203 dye removal using the above-mentioned methods. The results showed that the best pH values for dye removal using UV radiation, ferrate(VI), and MgO nanoparticles were 13, 1 and 13, respectively. The best temperature for Reactive Blue 203 dye removal using ferrate(VI) was 50°C. Hence, temperature variation had no significant effect on Reactive Blue 203 dye removal using UV irradiation and absorption by MgO nanoparticles. Based on the results, the best contact time was 15 minutes using UV radiation. The removal of Reactive Blue 203 dye using ferrate(VI) oxidation process was a quick reaction, and in a fraction of a second, the reactions were completed. The results showed that dye removal using MgO nanoparticles could be described by the Temkin isotherm. Therefore, the contact time was not considered as an effective parameter. In addition, the maximum dye removals were 95, 85 and 94% using UV irradiation, ferrate(VI) and MgO nanoparticles.

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Section: 2 the Effect Of Temperaturementioning

confidence: 90%

Comparison of Reactive Blue 203 Dye Removal Using Ultraviolet Irradiation, Ferrate (VI) Oxidation Process and MgO Nanoparticles

Talaiekhozani

Torkan²,

Banisharif

et al. 2018

Avicenna J Environ Health Eng

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“…There are about 20 to 30 groups of dyes based on their chromophores or chemical structures. Dyes as organic aromatic compounds absorb light at the wavelength range of 350-700 nm (visible spectrum) [2]. The quantity of dye released during a dying process has been estimated at 10 to 15% of the untreated dyestuff.…”

Section: Introductionmentioning

confidence: 99%

Photolysis of Methylene Blue Dye Using an Advanced Oxidation Process (Ultraviolet Light and Hydrogen Peroxide)

Mohammed

Khaleefa

Basheer

2022

jeasd

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Photolysis of methylene blue was studied by using an advanced UV/H2O2 oxidation process. This study investigated different initial dye concentrations (I0, 20, 30 ppm) using different concentrations of H2O2 (10 %, 30%, 50 %) in three additions (5 mL, 10 mL, 15 mL). The results showed that the degradation efficiencies of this dye at different concentrations were as follows: 99.86 % at 10 ppm using 15 mL of 10 % H2O2 after 60 min, 99.22 % at 20 ppm using 15 mL of 30 % H2O2 for 60 min, and 98.90 % at 30ppm using 15 mL of 50 % H2O2 after 90 min. An increase in the optimum concentration of H2O2 was observed with an increase in the initial dye concentration. The de-coloration time also increased with increasing initial dye concentration.

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Comparison of the photocatalytic, adsorption and electrochemical methods for the removal of cationic dyes from aqueous solutions

Anantha¹,

Olivera²,

et al. 2020

Environmental Technology & Innovation

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Methylene Blue Dye Removal from Aqueous Solutions and Photocatalytic Activity Using UV/Nano-TiO : Operating Parameters Study

Cited by 5 publications

References 8 publications

Comparison of Reactive Blue 203 Dye Removal Using Ultraviolet Irradiation, Ferrate (VI) Oxidation Process and MgO Nanoparticles

Comparison of Reactive Blue 203 Dye Removal Using Ultraviolet Irradiation, Ferrate (VI) Oxidation Process and MgO Nanoparticles

Photolysis of Methylene Blue Dye Using an Advanced Oxidation Process (Ultraviolet Light and Hydrogen Peroxide)

Comparison of the photocatalytic, adsorption and electrochemical methods for the removal of cationic dyes from aqueous solutions

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