Electrochemical oxidation of azo dyes degradation by RuO2–IrO2–TiO2 electrode with biodegradation Aeromonas hydrophila AR1 and its degradation pathway: An integrated approach

Abilaji, Subramani; Narenkumar, Jayaraman; Das, Bhaskar; S, Suresh; Rajakrishnan, Rajagopal; Sathishkumar, Kuppusamy; Rajamohan, Rajaram; Rajasekar, Aruliah

doi:10.1016/j.chemosphere.2023.140516

Cited by 11 publications

(2 citation statements)

References 63 publications

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“…These dyes are commonly used in various industrial applications, including textile dyeing, paper colouring, and as biological stains. The toxicity of thiazine dyes in water can vary depending on the specific dye and its chemical composition (Handbook of Green and Sustainable Nanotechnology, 2023;Rani and Shanker, 2023;Abilaji et al, 2023). In general, some thiazine dyes may pose environmental and health risks due to their potential toxicity.…”

Section: Thiazine Dye Toxicity In Watermentioning

confidence: 99%

Harnessing visible light: enhancing TiO2 photocatalysis with photosensitizers for sustainable and efficient environmental solutions

Chauke,

Mohlala,

Ngqoloda

et al. 2024

Front. Chem. Eng.

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The emerging field of using titanium dioxide (TiO2)-based photosensitizers for enhancing photocatalytic removal of thiazine dyes such as methylene blue (MB) from water has long been recognized for its exceptional photocatalytic properties, making it an attractive material for environmental remediation and energy conversion. However, its wide bandgap limits its responsiveness to visible light. As such, the utilization of TiO2-based photosensitizers for the removal of thiazine dyes, presents a promising avenue for diverse applications. In addressing the dual challenges of environmental pollution and harnessing sustainable energy sources, this review focuses on the removal of thiazine dyes from water and their subsequent application as photosensitizers for TiO2 materials. Thiazine dyes, ubiquitous in industrial effluents, pose environmental concerns due to their persistence and potential toxicity. Conversely, this innovative approach involves employing TiO2 materials as photocatalysts, utilizing the unique properties of thiazine dyes to enhance light absorption. Studies have shown that beyond the conventional role of thiazine dyes as colorants, they can serve as effective photosensitizers when coupled with TiO2. This tandem not only facilitates the elimination of thiazine dyes, such as MB, from water but also augments the improvement of the photocatalytic performance of TiO2 materials. The synergy between dye sensitizers and TiO2 enhances the overall efficiency of processes like dye degradation and water splitting. Dye sensitizers, acting as light energy absorbers, can efficiently transfer this energy to TiO2, thereby promoting electron transfer and generating reactive oxygen species (ROS). These ROS, in turn, initiate chemical reactions, rendering dye sensitizers valuable in applications such as wastewater treatment, solar energy conversion, and environmental remediation. As such, it is crucial to acknowledge the potential drawbacks associated with thiazine dyes, including toxicity and non-biodegradability. Consequently, careful consideration must be given to thiazine dye application and disposal. Therefore, this review manuscript delves into the comprehensive exploration of TiO2-based photosensitizers, shedding light on their efficacy in various photocatalytic processes for thiazine dye removal.

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Section: Thiazine Dye Toxicity In Watermentioning

confidence: 99%

Harnessing visible light: enhancing TiO2 photocatalysis with photosensitizers for sustainable and efficient environmental solutions

Chauke,

Mohlala,

Ngqoloda

et al. 2024

Front. Chem. Eng.

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“…Electro-oxidation is one of the most common techniques for purifying textile wastewater and other polluted water supplies (Abilaji et al, 2023), and it is classified into two types; direct oxidation and indirect electrooxidation. The direct oxidation process takes place on the anode surface as a result of the electron transfer.…”

Section: Introductionmentioning

confidence: 99%

Use of Nano Co-Ni-Mn Composite and Aluminum for Removal of Artificial Anionic Dye Congo Red by Combined System

Jasim,

Salman

2024

Ecol. Eng. Environ. Technol.

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The removal of congo red (CR) is a critical issue in contemporary textile industry wastewater treatment. The current study introduces a combined electrochemical process of electrocoagulation (EC) and electro-oxidation (EO) to address the elimination of this dye. Moreover, it discusses the formation of a triple composite of Co, Mn, and Ni oxides by depositing fixed salt ratios (1:1:1) of these oxides in an electrolysis cell at a constant current density of 25 mA/cm 2 . The deposition ended within 3 hours at room temperature. X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and energy dispersive X-ray (EDX) characterized the structural and surface morphology of the multi-oxide sediment. Marvelously, the deposition has simultaneously occurred on both anodic and cathodic graphite electrodes. These electrodes besides aluminum (Al) are employed as anodes in the EC-EO system, and the results were optimized by response surface methodology (RSM). The optimum operating conditions were a current density of 6 mA/cm 2 , pH = 7, and NaCl of 0.26 g/L. The results showed that the combined system eliminated more than 99.91% of the congo red dye with a removal of chemical oxygen demand (COD) of around 97% with 1.64 kWh/kg of dye of the consumed energy. At low current density, the current delivered for the composite anode was more than for the Al anode with the same surface area. On top of this superiority, the EC-EO scenario is a practical hybrid process to remove CR in an environmentally friendly pathway.

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Studying the impact of Tween 80 on the mechanism of bioremediation of Methylene blue dye by Bacillus cereus strains

Bose,

Kumar,

Rangasamy

2024

Biomass Conv. Bioref.

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Electrochemical oxidation of azo dyes degradation by RuO2–IrO2–TiO2 electrode with biodegradation Aeromonas hydrophila AR1 and its degradation pathway: An integrated approach

Cited by 11 publications

References 63 publications

Harnessing visible light: enhancing TiO2 photocatalysis with photosensitizers for sustainable and efficient environmental solutions

Harnessing visible light: enhancing TiO2 photocatalysis with photosensitizers for sustainable and efficient environmental solutions

Use of Nano Co-Ni-Mn Composite and Aluminum for Removal of Artificial Anionic Dye Congo Red by Combined System

Studying the impact of Tween 80 on the mechanism of bioremediation of Methylene blue dye by Bacillus cereus strains

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