Kinetic evaluation of photocatalytic degradation of food colorant E 131 VF by copper doped TiO2 nanophotocatalysts prepared at different calcination temperatures

Makki, Fatima Ali; Hassan, Mohammad Ali El Hajj; Jamal, M. M. El; Tabatabai‐Yazdi, Fatemeh‐Sadat; Pirbazari, Azadeh Ebrahimian

doi:10.1016/j.eti.2020.100981

Cited by 6 publications

(2 citation statements)

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“…Hydroxyl groups are necessary for the PC degradation process. They react with photo-induced holes, and produce hydroxyl radicals that are strong oxidants [21].…”

Section: Ftir Spectroscopy Analysismentioning

confidence: 99%

“…When the source of organometallic precursors reacts with water, hydrolysis and condensation processes occur simultaneously. Several experimental parameters, such as amounts of raw materials, hydrolysis temperature, stirring conditions and type of organic solvent, affect these two processes [21]. MW-based synthesis method is one of the most low-cost, simple, energy-saving and time-efficient approaches for of TiO2 NS preparation, which results in better yields with a shorter reaction time [22,23].…”

Section: Introduction mentioning

confidence: 99%

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Characterization and Performance of TiO2 Nanoparticles Prepared by Microwave in Different Mixtures of Water and Ethylene Glycol for the Food Dye E131 VF Degradation

Kassir¹,

Azoury²,

Damacet³

et al. 2023

Port. Electrochim. Acta

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In this research, TiO2 NP were prepared by MW-R and conventional SG methods, using TTIP as Ti precursor, in the presence of different mixtures of distilled H2O and ETG (0 < H2O/ETG < 100%), as a solvent. The prepared samples were characterized by XRD, Raman, FTIR, EDX/ SEM, N2 physisorption, DLS and UV/visible DRS techniques. XRD and Raman analyses showed that Ant phase dominated, with traces of Rt or Brk phases, in some samples. According to K-M curves, TiO2 calculated EG decreased with an increase in Rt phase percentage. PC performance of the prepared samples was tested on E131 VF. Kinetic evaluations showed that Rt percentage and surface area had a significant role in TiO2 NP PC performance. E131 VF degradation high RC were obtained in an AU by 0% ETG SG (0.130 (AU)) and 0% ETG MW-R (0.113 (AU)), due to the high surface area and Rt absence. The samples (x% ETG) synthesized by the MW-R method showed low pore volume and PC performance that might have been be due to a blockage of the pores and screening effect of some combustion products or residual ETG, which carried UV irradiation to the catalyst surface.

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“…Hydroxyl groups are necessary for the PC degradation process. They react with photo-induced holes, and produce hydroxyl radicals that are strong oxidants [21].…”

Section: Ftir Spectroscopy Analysismentioning

confidence: 99%

Section: Introduction mentioning

confidence: 99%