Studying the influence of different parameters on the electrochemical oxidation of tannery dyes using a Ti/IrO2-SnO2-Sb2O5 anode

Bravo-Yumi, Nelson; Pacheco‐Álvarez, Martín; Bandala, Erick R.; Brillas, Enric; Peralta‐Hernández, Juan M.

doi:10.1016/j.cep.2022.109173

Cited by 29 publications

(6 citation statements)

References 49 publications

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Section: Introductionmentioning

confidence: 99%

“…Water is essential for all living organisms on earth and it is non-renewable source [7][8][9]. Therefore, preserving the water and its purity is of great importance for all living organisms and especially for human beings [9]. There are many aspects of services, businesses and households that use potable water and impact it negatively by transforming it into waste-water [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…The higher charge mobility in nanorods along the crystal longitudinal dimension, plus fewer localized states and the enhanced charge separation make Sb 2 O 5 nanorods to be high efficiency photocatalysis. The state of the art showed that Sb 2 O 5 was widely examined as coupling layer for photocatalysis [5,9,25]. However, there are no reports about the use of pure Sb 2 O 5 films as a photoelectrode for PEC splitting.…”

Section: Introductionmentioning

confidence: 99%

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Morphological and optical characterizations of Sb₂O₅ nanorods as new photoelectrode for hydrogen generation

Mindil,

Mohamed,

Amri

et al. 2023

Phys. Scr.

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Sb2O5 nanorods were synthesized using vapor transport as a photoelectrode forhydrogen generation. XRD revealed the formation of cubic Sb2O5 crystallographicphase and no other impurity peaks were observed. The SEM images revealedrandomly oriented wedge shaped nanorods morphology. The optical band gap, therefractive index and extinction coefficient of the synthesized Sb2O5 nanorods filmwere calculated from the spectral transmittance and reflectance measurements. Thephotocurrent density generated from Sb O2 5 nanorods film was – 0.055 mA/cm2 at -0.88 V and it displayed a fast transient response in the on-off process of light. Thecalculated hydrogen moles per active unit area was 0.48 μmole/h.cm2. The Sb2O5nanorods photoelectrode have achieved an incident to photon conversion efficiency of0.2 %. The results indicated that the Sb2O5 nanorods film could be used as a potential

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphological and optical characterizations of Sb₂O₅ nanorods as new photoelectrode for hydrogen generation

Mindil,

Mohamed,

Amri

et al. 2023

Phys. Scr.

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“…In the treatment process, a direct current is applied to an electrolyte solution to oxidize and reduce the target object at the anode and cathode poles, respectively. At the same, hydroxyl free radicals (•OH) and other strong oxidants are generated in the reaction process, which have a high redox potential [19], so that EAOPs convert organic compounds or POPs into harmless substances, such as simple inorganic molecules like carboxylic acids, CO 2 and H 2 O [20]. A concentration of 30 mg/L bisphenol A can be completely removed in 5.0 h with a SnO 2 /MWCNT anode by applying a 20 mA/cm 2 current density, 0.1 M sodium sulfate electrolyte, at pH 4.0 [21].…”

Section: Introductionmentioning

confidence: 99%

Treatment of Monochlorobenzene from Polymers Process through Electrochemical Oxidation

Wang,

Yue,

Wang

et al. 2024

Polymers

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With the rapid development of the economy and the demands of people’s lives, the usage amount of polymer materials is significantly increasing globally. Chlorobenzenes (CBS) are widely used in the industrial, agriculture and chemical industries, particularly as important chemical raw materials during polymers processes. CBS are difficult to remove due to their properties, such as being hydrophobic, volatile and persistent and biotoxic, and they have caused great harm to the ecological environment and human health. Electrochemical oxidation technology for the treatment of refractory pollutants has been widely used due to its high efficiency and easiness of operation. Thus, the electrochemical oxidation system was established for the efficient treatment of monochlorobenzene (MCB) waste gas. The effect of a single factor, such as anode materials, cathode materials, the electrolyte concentration, current density and electrode distance on the removal efficiency (RE) of MCB gas were first studied. The response-surface methodology (RSM) was used to investigate the relationships between different factors’ conditions (current density, electrolyte concentration, electrode distance), and a prediction model was established using the Design-Expert 10.0.1 software to optimize the reaction conditions. The results of the one-factor experiments showed that when treating 2.90 g/m3 MCB gas with a 0.40 L/min flow rate, Ti/Ti4O7 as an anode, stainless steel wire mesh as a cathode, 0.15 mol/L NaCl electrolyte, 10.0 mA/cm2 current density and 4.0 cm electrode distance, the average removal efficiency (RE), efficiency capacity (EC) and energy consumption (Esp) were 57.99%, 20.18 g/(m3·h) and 190.2 (kW·h)/kg, respectively. The results of the RSM showed that the effects of the process parameters on the RE of MBC were as follows: current density > electrode distance > electrolyte concentration; the interactions effects on the RE of MBC were in the order of electrolyte concentration and current density > current density and electrode distance > electrolyte concentration and electrode distance; the optimal experimental conditions were as follows: the concentration of electrolyte was 0.149 mol/L, current density was 18.11 mA, electrode distance was 3.804 cm. Under these conditions, the RE achieved 66.43%. The response-surface variance analysis showed that the regression model reached a significant level, and the validation results were in agreement with the predicted results, which proved the feasibility of the model. The model can be applied to treat the CBS waste gas of polymer processes through electrochemical oxidation.

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“…ANN models prove valuable in situations where establishing a mathematical model between input and output data proves challenging. Moreover, artificial neural networks necessitate fewer initial assumptions [ 18 , 21 , 36 ] and can deliver superior accuracy [ 37 , 38 ] compared to traditional modeling techniques. The capability of artificial neural networks to address non-linear challenges has garnered increased attention in water quality research [ 39 ].…”

Section: Introductionmentioning

confidence: 99%

Modelling and optimization of fenton process for decolorization of azo dye (DR16) at microreactor using artificial neural network and genetic algorithm

Sadeghzadeh Ahari,

Sadeghi,

Koolivand Salooki

et al. 2024

Heliyon

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Studying the influence of different parameters on the electrochemical oxidation of tannery dyes using a Ti/IrO2-SnO2-Sb2O5 anode

Cited by 29 publications

References 49 publications

Morphological and optical characterizations of Sb₂O₅ nanorods as new photoelectrode for hydrogen generation

Morphological and optical characterizations of Sb₂O₅ nanorods as new photoelectrode for hydrogen generation

Treatment of Monochlorobenzene from Polymers Process through Electrochemical Oxidation

Modelling and optimization of fenton process for decolorization of azo dye (DR16) at microreactor using artificial neural network and genetic algorithm

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Studying the influence of different parameters on the electrochemical oxidation of tannery dyes using a Ti/IrO2-SnO2-Sb2O5 anode

Cited by 29 publications

References 49 publications

Morphological and optical characterizations of Sb2O5 nanorods as new photoelectrode for hydrogen generation

Morphological and optical characterizations of Sb2O5 nanorods as new photoelectrode for hydrogen generation

Treatment of Monochlorobenzene from Polymers Process through Electrochemical Oxidation

Modelling and optimization of fenton process for decolorization of azo dye (DR16) at microreactor using artificial neural network and genetic algorithm

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Product

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Morphological and optical characterizations of Sb₂O₅ nanorods as new photoelectrode for hydrogen generation

Morphological and optical characterizations of Sb₂O₅ nanorods as new photoelectrode for hydrogen generation