Synergistic effects of H2O2 and S2O82− in the gamma radiation induced degradation of congo-red dye: Kinetics and toxicities evaluation

Shah, Noor S.; Khan, Javed Ali; Sayed, Murtaza; Khan, Zia Ul Haq; Iqbal, Jibran; Arshad, Sidra; Junaid, Muhammad; Khan, Hasan M.

doi:10.1016/j.seppur.2019.115966

Cited by 95 publications

(28 citation statements)

References 34 publications

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“…Equally, methyl orange (anionic dye) and methylene blue (cationic dye) are considered harmful dyes released from textiles and printing industries and it is desired to minimise as much as possible their concentration in the environment [279][280][281][282][283][284]. Besides these, other common organic pollutants targeted in photodegradation applications are congo red (highly toxic and carcinogenic pollutant) [285], neutral red [286], phenol red [287], 4-methylphenol [288] and tetracycline [289], their chemical structures being presented in Table 12. The photooxidation reaction of organic dyes is similar to the processes involved in the water-splitting reaction.…”

Section: Applications Of Perovskite-type Materials In the Removal Of mentioning

confidence: 99%

Complex Catalytic Materials Based on the Perovskite-Type Structure for Energy and Environmental Applications

2020

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This review paper focuses on perovskite-type materials as (photo)catalysts for energy and environmental applications. After a short introduction and the description of the structure of inorganic and hybrid organic-inorganic perovskites, the methods of preparation of inorganic perovskites both as powders via chemical routes and as thin films via laser-based techniques are tackled with, for the first, an analysis of the influence of the preparation method on the specific surface area of the material obtained. Then, the (photo)catalytic applications of the perovskites in energy production either in the form of hydrogen via water photodecomposition or by methane combustion, and in the removal of organic pollutants from waste waters, are reviewed.

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Section: Applications Of Perovskite-type Materials In the Removal Of mentioning

confidence: 99%

Complex Catalytic Materials Based on the Perovskite-Type Structure for Energy and Environmental Applications

2020

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“…Textile industries produce a large amount of wastewater which contains a high concentration of inorganic salts and different types of reactive dyes for coloring clothes [1,2]. ese reactive dyes cause aesthetic problems, an increase of chemical oxygen demand of the wastewater [3].…”

Section: Introductionmentioning

confidence: 99%

Factors Determining the Removal Efficiency of Procion MX in Waters Using Titanate Nanotubes Catalyzed by UV Irradiation

Que

Khôi

Thủy

et al. 2021

Journal of Nanotechnology

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The treatment of wastewater from the textile industry containing organic dyes faces many challenges since these compounds resist the biodegradation process in conventional treatment units. Among the physicochemical processes, photocatalysis is considered a facile, cheap, and environmental-friendly technology for treating persistent organic pollutants in waters at low concentrations. This study investigated several physicochemical factors determining the photocatalytic activity of titanate nanotubes (TNTs) to remove Procion MX 032 (PMX), an azo dye, in waters. Degradation of PMX by photocatalytic oxidation process at room temperature (30°C) was set up with the UV irradiation in the presence of different types of photocatalyst such as ST-01 (100% anatase), industrial TiO2, TNTs calcined at 120°C and 500°C. Effect of reaction time, catalyst amount, pH, light wavelength and intensity, and oxidants was investigated. Consequently, TNTs calcined at 500°C provided the highest removal efficiency. The photocatalytic oxidation of PMX by TNT calcined at 500°C was affected by pH variation, getting the highest removal at pH of 8, and inhibited with the presence of H2O2 and O2. Particularly, the PMX degradation using titanate nanotubes was optimized under the UV-A intensity of 100 W/m2. The dye was degraded by more than 95% at the TNTs concentration of 75 mg/L and pH 8.0 after 90 min. The results suggest that photocatalysis using TNTs can be a simple but efficient treatment method to remove PMX and potentially be applied for the treatment of wastewaters containing dyes.

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“…Various researchers have reported the degradation of a variety of dyes through the use of complex techniques. Shah et al (2020) employed gamma radiations in the presence of hydrogen peroxide and peroxydisulfate for the degradation of congo red solution (15 μM). Another study used iron nanoparticles, monometallic Fe@carbon quantum dots, and bimetallic Fe/Ag@carbon quantum dots under sodium light for degradation of fast green dye solution (Sharma et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Low‐cost nano‐TiO₂ composites for remediation of textile dyes: Appraisal on the effect of solar and ultraviolet irradiations

Kaur

Kalia

2021

Microscopy Res & Technique

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The study evaluates the azo dye degradation potential of nano‐TiO2; its composites with low‐cost substrates in the form of powder and encapsulated bead for two widely used azo dyes, methyl orange (MO) and congo red (CR) under solar and ultraviolet (UV) irradiation. Degradation potential varied according to the dye concentration, chemistry of dye, light source, and the formulation of the photocatalyst. Both the dyes were completely decolorized at 100 mg/L concentration and to some extent at 1,000 mg/L concentration. The activated charcoal‐titanium dioxide (AC‐TiO2) nanocomposite in the presence of solar radiations proved to be an economic and efficient substrate for degradation of the test dyes exhibiting combined action of adsorption and photocatalytic phenomena.

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Synergistic effects of H2O2 and S2O82− in the gamma radiation induced degradation of congo-red dye: Kinetics and toxicities evaluation

Cited by 95 publications

References 34 publications

Complex Catalytic Materials Based on the Perovskite-Type Structure for Energy and Environmental Applications

Complex Catalytic Materials Based on the Perovskite-Type Structure for Energy and Environmental Applications

Factors Determining the Removal Efficiency of Procion MX in Waters Using Titanate Nanotubes Catalyzed by UV Irradiation

Low‐cost nano‐TiO₂ composites for remediation of textile dyes: Appraisal on the effect of solar and ultraviolet irradiations

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Synergistic effects of H2O2 and S2O82− in the gamma radiation induced degradation of congo-red dye: Kinetics and toxicities evaluation

Cited by 95 publications

References 34 publications

Complex Catalytic Materials Based on the Perovskite-Type Structure for Energy and Environmental Applications

Complex Catalytic Materials Based on the Perovskite-Type Structure for Energy and Environmental Applications

Factors Determining the Removal Efficiency of Procion MX in Waters Using Titanate Nanotubes Catalyzed by UV Irradiation

Low‐cost nano‐TiO2 composites for remediation of textile dyes: Appraisal on the effect of solar and ultraviolet irradiations

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Low‐cost nano‐TiO₂ composites for remediation of textile dyes: Appraisal on the effect of solar and ultraviolet irradiations