Taguchi method for optimization of immobilized Dy2O3/graphite/TiO2/Ti nanocomposite preparation and application in visible light photoelectrocatalysis process

Ayoubi-Feiz, Baharak; Soleimani, Donya; Sheydaei, Mohsen

doi:10.1016/j.jelechem.2019.113377

Cited by 25 publications

(12 citation statements)

References 25 publications

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“…When comparing the performance of the electrodes, it is possible to observe that at the beginning of the reaction the standard Ti/RuO 2 -TiO 2 (30:70) obtained a better performance, until it matched the performance of the composition Ti/RuO 2 -TiO 2 -SnO 2 Ta 2 O 5 (30:40:10:20) in 25 min, and from that moment the quaternary electrode started to perform better when compared to the standard. The good performance with a standard electrode was already expected because it is a widely used composition, with 70% TiO 2 which is a catalyst with great light absorption properties [ 15 ] and 30% of RuO 2 , a promising catalyst for hydrogen evolution reaction [ 42 ]. On the other hand, the composition of the quaternary anode also presents Ta 2 O 5 with excellent properties as a semiconductor and stabilizer [ 20 ], but its application has been little studied in DSAs and SnO 2 with a significant electrooxidation capacity and corrosion stability [ 23 ].…”

Section: Resultsmentioning

confidence: 99%

“…As the color removal process by photocatalysis was inefficient, the time was limited to 3 h. It is possible to observe that in the photocatalysis DSA Ti/RuO 2 -TiO 2 (30:70), type as standard, more effective color removal was obtained when compared to the new DSA formulation tested (Ti/RuO 2 -TiO 2 -SnO 2 Ta 2 O 5 ), showing that standard DSA has a better response to UV light when compared to quaternary composition. This is due to the higher proportion of TiO 2 in the second electrode, which is a material that has great light absorption properties and, due to this characteristic, it is currently widely applied to photocatalytic and antibacterial technology [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

“…Several materials can be used as photoanodes for the photoelectrocatalysis process. Among them, TiO 2 stands out, which has low water solubility, chemical and photochemical corrosion resistance, low cost, and availability [ 15 ]. However, it has several limitations: the photocatalytic activity of this semiconductor which is limited to UV irradiation, and the rate of recombination of electron-hole pairs in this semiconductor is high, which reduces the efficiency of the reaction [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

et al. 2022

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Indigo Blue (IB) is a dye widely used by the textile sector for dyeing cellulose cotton fibers and jeans, being considered a recalcitrant substance, and therefore resistant to traditional treatments. Several methodologies are reported in the literature for the removal or degradation of dyes from the aqueous medium, among which photoelectrocatalysis stands out, which presents promising results in the degradation of dyes when a dimensionally stable anode (DSA) is used as a photoanode. In the present work, we sought to investigate the efficiency of a Ti/RuO2-TiO2 DSA modified with tin and tantalum for the degradation of indigo blue dye by photoelectrocatalysis. For this, electrodes were prepared by the thermal decomposition method and then a physical–chemical and electrochemical analysis of the material was carried out. The composition Ti/RuO2-TiO2-SnO2Ta2O5 (30:40:10:20) was compared to Ti/RuO2-TiO2 (30:70) in the photocatalysis, electrocatalysis, and photoelectrocatalysis tests. The photocatalysis was able to degrade only 63% of the IB at a concentration of 100 mg L−1 in 3 h, whereas the electrocatalysis and photoelectrocatalysis were able to degrade 100% of the IB at the same initial concentration in 65 and 60 min, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

et al. 2022

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“…Another study [59] delved into the repeatability assessment of Dy 2 O 3 /graphite/TiO 2 /Ti nanocomposites to degrade Maxilon blue GRL. The findings from this investigation showcased that, even after undergoing four consecutive recycling cycles under optimal conditions, the decolorization efficiency exhibited minimal deviations compared to the performance of the original catalyst.…”

Section: Reusability and Regenerability Studiesmentioning

confidence: 99%

Photocatalytic Degradation of Maxilon Dye Pollutants using Nano‐Architecture Functional Materials: A Review

Emmanuel,

Adesibikan,

Olawoyin

et al. 2024

ChemistrySelect

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The most essential task in the twenty‐first century is to fight the alarming growing pollution in the aquatic body in which effluent of one of the most colouring dye categories called maxilon dye is a major contributor. This review thus specifically focuses on the use of nanoparticles (NPs) for photocatalytic degradation of maxilon dye contaminants in water bodies. The work empirically presented the performance evaluation of NPs in degrading maxilon dyes under light irradiation alongside the underlying operational photocatalytic degradation mechanism. The stability of NPs was also critically analyzed by looking at the regenerability and reusability of expended NPs. From the study, it was discovered that ⋅OH and O2⋅ played a vital role in the genesis of the oxidizing capacity of NPs for the photocatalytic breakdown of maxilon dye. Moreover, it was found that the degradation performance of most NPs is greater than 80 % and the shortest degradation period is < 1 hour with pseudo‐first‐order (PFO) being the most common kinetic best‐fit to describe the adsorption process that occurred shortly before and during the degradation operation. At the end, knowledge gaps were identified in the area of regenerability, the lifecycle analyses of nano‐photocatalyst fabrication and utilization, cost analysis for industrial scale‐up, maxilon dye ecotoxicological study, and degradation pathways. The findings of this study can open up insightful innovation for readers and industries that are interested in pursuing zero water insecurity.

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“…In the production of PP/modified Co-PBAT/ compatibilizer compound, there are many parameters in the development of dyeable PP, such as the low melting point-modified Co-PBAT ratio, the compatibilizer proportion, and the mixing temperature. Previous studies [25][26][27][28][29][30] have found that the Taguchi method is the best way to solve single quality characteristic optimization problems. The experiments are designed using an orthogonal array, and the number of experiments is reduced effectively in the orthogonal concept.…”

mentioning

confidence: 99%

Functional dyeable polypropylene fabric development and process parameter optimization Part I: Dyeable modified polypropylene development with process parameter optimization

Kuo

Chen

2021

Textile Research Journal

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This study aims to develop dyeable modified polypropylene (PP) granules with disperse dye. The optimal dyeable modified PP granule process used polyester as a mixed copolymer. The purpose was to overcome the excessive difference between the polyester material melting point and PP melting point. The development of a low-melting modified co-polybutylene adipate terephthalate (Co-PBAT) was the key point. After the low-melting modified Co-PBAT was presented, PP and a PP grafting maleic anhydride compatibilizer were made into a composite by dual-screw mixing process. The disperse dye dyeability was reached by the molecular behavior of the Co-PBAT chain segment. The prepared material was applied to explore the thermal properties of modified ester pellets and the functional group was verified by Fourier infrared spectroscopy. In this study, the Taguchi method and principal component analysis were used to optimize the process parameter design of two quality characteristics; namely, the color strength and the polymer melt flow index (MFI). According to the results, the multi-quality optimization of the ester pellets consisted of a modified Co-PBAT melting point of 170°C, the modified Co-PBAT content of 9 wt%, the compatibilizer content of 3 wt%, and the mixing temperature of 205°C. The MFI of the regular PP polymer was 28.1 g/10 min, the color strength was 100 K/S. For the optimal process, the MFI of the PP/Co-PBAT dyeable granules was 37.88 g/10 min, and the color strength was 121.31 K/S. It could be observed that the developed polymer had good circulating workability and color strength.

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Taguchi method for optimization of immobilized Dy2O3/graphite/TiO2/Ti nanocomposite preparation and application in visible light photoelectrocatalysis process

Cited by 25 publications

References 25 publications

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

Photocatalytic Degradation of Maxilon Dye Pollutants using Nano‐Architecture Functional Materials: A Review

Functional dyeable polypropylene fabric development and process parameter optimization Part I: Dyeable modified polypropylene development with process parameter optimization

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