On the behaviour of doped SnO2 anodes stabilized with platinum in the electrochemical degradation of reactive dyes

Río, A.I. del; Fernández, Julio César; Molina, J.; Bonastre, J.; Cases, F.

doi:10.1016/j.electacta.2010.07.008

Cited by 49 publications

(17 citation statements)

References 17 publications

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“…COD, HPLC, UV-Vis, and potential control measurements were also used to verify the viability of these anodes to degrade and decolorize wastewater solutions containing a reactive dye: C.I. Reactive Orange 4 [23,24]. e electrochemical degradation of C.I.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes

Gaber

Ghalwa

Khedr

et al. 2012

Journal of Chemistry

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ree modi�ed electrodes (C/PbO 2 , Pb + Sn/PbO 2 + SnO 2 , and Pb/PbO 2 ) were prepared by electrodeposition and used as anodes for electrochemical degradation of Reactive Yellow 160 (RY160) dye in aqueous solution. Different operating conditions and factors affecting the treatment process including current density, temperature, initial concentration of (RY160), pH, conductive electrolyte and time of electrolysis were studied and optimized. e best degradation occurred in the presence of NaCl (4 g L −1 ) as a conductive electrolyte. Aer 15 min, nearly complete degradation of RY160 was achieved (97.9%, 96.65 and 95.35% using C/PbO 2 , Pb+Sn/PbO 2 + SnO 2 , and Pb/PbO 2 electrodes, resp.) at pH 7.13. Higher degradation efficiency was obtained at 25 ∘ C. e optimum current density for the degradation of RY160 on all electrodes was 50 mA cm −2 . e prepared C/PbO 2 , Pb+Sn/PbO 2 + SnO 2 and Pb/PbO 2 electrodes were found to be highly efficient in the treatment of effluents obtained from dyeing factory which contain RY160 dye with very slight matrix effect.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes

Gaber

Ghalwa

Khedr

et al. 2012

Journal of Chemistry

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“…These results further confirmed that the incorporation of trace amounts of Pt have a great impact on the electrochemical properties and significantly improve the electrode stability, which are mainly due to the compacting effect of Pt. [44][45][46][47][48][49][50][51][52][53][54] F. Montilla et al studied the effect of Pt on the physical and electrochemical properties of the electrode in detail. They found that the introducing Pt modifies the lattice parameters and morphology of the SnO2 effectively.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Pt doped Ti/Sb-SnO2 Electrode and its Efficient Electro-Catalytic Activity toward Phenol

Li¹,

Yan²,

Zhu³

2021

Eng. Sci.

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An optimized metal oxide electrode was prepared via the simple thermal decomposition method to improve the stability and electro-catalytic properties. It was found that Pt doping could effectively change the surface morphology. The Ti/Pt-Sb-SnO2 electrode possess compact and uniform surface packed with a large number of small particles. Besides, the influence of the Pt on the electrochemical performance was analyzed in detail. The oxygen evolution potential of Ti/Pt-Sb-SnO2 electrode decreased slightly, but it showed a smaller charge transfer resistance (0.2 Ω•cm 2 versus 1.67 Ω•cm 2 ) and a longer service lifetime which is almost 24-times longer than that of Ti/Sb-SnO2 (73 h versus 3h). Finally, electro-catalytic oxidation of phenol was employed. In the electro-catalytic process, both phenol and its possible intermediates were more rapidly decomposed on the Ti/Pt-Sb-SnO2 electrodes. The removal of chemical oxygen demand (COD) was 95.56% and 56.31% on the Ti/Pt-Sb-SnO2 and Ti/Sb-SnO2 electrodes, respectively. And the corresponding instantaneous current efficiency (ICE) of Ti/Pt-Sb-SnO2 electrode was higher than that of Ti/Sb-SnO2. Based on the experimental results, the prepared Ti/Pt-Sb-SnO2 electrode has better stability and excellent phenol electro-catalytic ability, further signifying that it has a good potential application prospect in the field of wastewater.

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“…Colored industrial effluents have a negative impact on public health and the environment and also produce visual pollution. Many studies on decolorization methods have been carried out with the main focus being on physical and chemical treatment methods, such as adsorption [3][4][5], coagulation/flocculation [6,7], ozonation [8,9], Fenton or photo-Fenton processes [10,11], UV/NaOCl methodologies [12], electrochemical degradation [13][14][15], ultrasonic irradiation [16,17], and UV/ H 2 O 2 methodologies [18][19][20]. Reactive dyes are the most commonly used dyes, worldwide, due to their high level of fixation in the fibers and their chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Removal of sodium salts and chemical oxygen demand from real reactive dye wastewater by the integrated process of chemical precipitation and extraction

Wang

Dong

2016

Desalination and Water Treatment

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hua Dong (2015): Removal of sodium salts and chemical oxygen demand from real reactive dye wastewater by the integrated process of chemical precipitation and extraction, Desalination and Water Treatment, A B S T R A C TReal reactive brilliant red K-2BP (C. I. Reactive Red 24) dye wastewater is characterized by its very high chemical oxygen demand (COD), high concentration of sodium salt, and low biodegradability. A combined process of precipitation, complex extraction, and stripping was proposed as a method for treating such wastewater. Fluosilicic acid was selected as a precipitator for the recovery of sodium ions, trialkylamine (N235) as the extractant, and sodium hydroxide (NaOH) as a back-extractant. Our results indicated that desalination had the greatest influence on extraction rates while the phase ratio and the N235 concentration also influenced the reaction. Acid, which was an important factor affecting COD extraction, was produced during desalination process. We also noted a number of points of interest: that the extraction reaction could reach equilibrium in 20 min; that the COD removal rates tended to increase under certain conditions, with an increase in acidity of wastewater resulting in increased desalination rates, and an increased N235 concentration and phase ratio (O/A). Under optimum conditions the COD removal rates can reach 92%, the extractant could be regenerated by stripping with NaOH, and the stripping rate could reach an efficiency of 100%.

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On the behaviour of doped SnO2 anodes stabilized with platinum in the electrochemical degradation of reactive dyes

Cited by 49 publications

References 17 publications

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes

Fabrication and Characterization of Pt doped Ti/Sb-SnO2 Electrode and its Efficient Electro-Catalytic Activity toward Phenol

Removal of sodium salts and chemical oxygen demand from real reactive dye wastewater by the integrated process of chemical precipitation and extraction

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On the behaviour of doped SnO2 anodes stabilized with platinum in the electrochemical degradation of reactive dyes

Cited by 49 publications

References 17 publications

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO2‐, Pb + Sn/PbO2 + SnO2‐, and Pb/PbO2 Modified Electrodes

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO2‐, Pb + Sn/PbO2 + SnO2‐, and Pb/PbO2 Modified Electrodes

Fabrication and Characterization of Pt doped Ti/Sb-SnO2 Electrode and its Efficient Electro-Catalytic Activity toward Phenol

Removal of sodium salts and chemical oxygen demand from real reactive dye wastewater by the integrated process of chemical precipitation and extraction

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Product

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About

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes

Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes