Synergy of cold plasma and sulfate radicals in the treatment of dye-contaminated wastewater; mechanistic study of the degradation mechanism using DFT

Moradi, Hiresh; Kim, Dong–Su; Yang, Jae‐Kyu; Chang, Yoon-Young; Park, Sam-Bae; Kamranifard, Telma

doi:10.1016/j.seppur.2023.124381

Cited by 9 publications

(5 citation statements)

References 83 publications

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“…Hence, the treatment time was reduced by 16.7% for NPX and 43.7% for RR180 by enhancing the contact between the generated radicals and the pollutant molecules. 29,30…”

Section: Resultsmentioning

confidence: 99%

“…The synergy of sulfate and hydroxyl radicals might have increased the mineralization of the dye. 30 However, complete mineralization was not achieved despite the high removal efficiency.…”

Section: Resultsmentioning

confidence: 99%

“…S9 ESI†) and showed more excellent stability due to difficult-to-break naphtha bonds. Alternatively, the azo bond cleavage product (B) can be formed, which first undergoes desulphonation or removal of the branch chains to form (I) and (J), 30 respectively. The product (I) further undergoes desulphonation by radicals to stable naphtha bond compounds.…”

Section: Resultsmentioning

confidence: 99%

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Catalytic pulsed plasma treatment for organic micropollutants: unveiling the synergistic role of photocatalysts in radical generation and degradation mechanisms

Anand,

Philip

2024

Environ. Sci.: Water Res. Technol.

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“…Hence, the treatment time was reduced by 16.7% for NPX and 43.7% for RR180 by enhancing the contact between the generated radicals and the pollutant molecules. 29,30…”

Section: Resultsmentioning

confidence: 99%

“…The synergy of sulfate and hydroxyl radicals might have increased the mineralization of the dye. 30 However, complete mineralization was not achieved despite the high removal efficiency.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Catalytic pulsed plasma treatment for organic micropollutants: unveiling the synergistic role of photocatalysts in radical generation and degradation mechanisms

Anand,

Philip

2024

Environ. Sci.: Water Res. Technol.

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“…There are different methods for removing dyes such as using the surface dielectric barrier discharge (SDBD) plasma method. In other studies, combinations of various processes are employed to enhance the degradation efficiency . This includes advanced oxidation processes (AOPs) with nonthermal atmospheric pressure plasmas (NTAPPs).…”

Section: Introductionmentioning

confidence: 99%

“…In other studies, combinations of various processes are employed to enhance the degradation efficiency. 11 This includes advanced oxidation processes (AOPs) with nonthermal atmospheric pressure plasmas (NTAPPs). Among the chemical processes utilized is photocatalytic degradation (PD) applying nanophotocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Physical–Chemical Assessment of Azo Dye Basic Violet I (BVI) Discoloration Using the Corona Plasma in Batch and Flow Systems

Gomez,

Rodríguez Albarrán,

Vergara Sanchez

et al. 2024

ACS Omega

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The decolorization of the Basic violet I (BVI) dye when interacted with a corona discharge is studied in the present work, taking in account two systems, batch and flux. The current and voltage were measured during the whole process in which a corona plasma was generated, with an applied power of 51.9 and 167.72 W where the transport gas was air. A batch reactor and a flow reactor were used, where 500 and 5000 mL of samples were treated, respectively. Optical emission spectra (OES) were measured where the oxidizing species •OH were at wavelengths of 307.597 and 310.148 nm, associated with the A 2 ∑ + − X 2 Π transition. The absorption spectra for the batch system showed a discoloration of 85.7% in the first 10 min, while in the flow system, the absorption was 93.9% at the same time and 4.5% at the same time by conventional heating. Characteristics of the final sample included an acidic solution with an electrical conductivity of 449.20 ± 55.44 and 313.6 ± 39.58 μS/cm, a dissolved oxygen concentration of 7.74 ± 0.2 and 6.37 ± 0.23 mg/L, an absorbance of 0.04 ± 0.01 and 0.03 ± 0.01 au, with turbidity measuring 1.22 ± 1.59 and 10.34 ± 4.96 NTU, and an energy cost of 1.1 × 10 −1 and 6.3 × 10 −1 g/ kWh in the batch and continuous flow systems, respectively. The interaction of the corona plasma with water promoted the production of reactive species, resulting in the discoloration of the Basic Violet I dye.

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New Insights on ARS Degradation Mechanisms: Initial Reaction Calculation Based on DFT Method

Shao,

Jiang,

Meng

2024

Environmental Science and Engineering

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Synergy of cold plasma and sulfate radicals in the treatment of dye-contaminated wastewater; mechanistic study of the degradation mechanism using DFT

Cited by 9 publications

References 83 publications

Catalytic pulsed plasma treatment for organic micropollutants: unveiling the synergistic role of photocatalysts in radical generation and degradation mechanisms

Catalytic pulsed plasma treatment for organic micropollutants: unveiling the synergistic role of photocatalysts in radical generation and degradation mechanisms

Physical–Chemical Assessment of Azo Dye Basic Violet I (BVI) Discoloration Using the Corona Plasma in Batch and Flow Systems

New Insights on ARS Degradation Mechanisms: Initial Reaction Calculation Based on DFT Method

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