Study of the paracetamol degradation pathway that generates color and turbidity in oxidized wastewaters by photo-Fenton technology

Villota, Natalia; Lomas, Jose M.; Camarero, Luis M.

doi:10.1016/j.jphotochem.2016.06.024

Cited by 44 publications

(17 citation statements)

References 30 publications

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“…The degradation of paracetamol under visible light was used to verify the dye sensitisation mechanism ( Figure 11 ). Since paracetamol does not absorb in the visible region of the spectrum, any reduction in concentration can be attributed to photocatalysis [ 69 ]. No reduction in concentration was recorded for any of the materials when irradiated with visible light, thus, verifying the contribution of MB towards the apparent visible light activity.…”

Section: Resultsmentioning

confidence: 99%

Suitability of Different Titanium Dioxide Nanotube Morphologies for Photocatalytic Water Treatment

et al. 2021

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Photocatalysis has long been touted as one of the most promising technologies for environmental remediation. The ability of photocatalysts to degrade a host of different pollutants, especially recalcitrant molecules, is certainly appealing. Titanium dioxide (TiO2) has been used extensively for this purpose. Anodic oxidation allows for the synthesis of a highly ordered nanotubular structure with a high degree of tunability. In this study, a series of TiO2 arrays were synthesised using different electrolytes and different potentials. Mixed anatase-rutile photocatalysts with excellent wettability were achieved with all the experimental iterations. Under UVA light, all the materials showed significant photoactivity towards different organic pollutants. The nanotubes synthesised in the ethylene glycol-based electrolyte exhibited the best performance, with near complete degradation of all the pollutants. The antibacterial activity of this same material was similarly high, with extremely low bacterial survival rates. Increasing the voltage resulted in wider and longer nanotubes, characteristics which increase the level of photocatalytic activity. The ease of synthesis coupled with the excellent activity makes this a viable material that can be used in flat-plate reactors and that is suitable for photocatalytic water treatment.

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Section: Resultsmentioning

confidence: 99%

Suitability of Different Titanium Dioxide Nanotube Morphologies for Photocatalytic Water Treatment

et al. 2021

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“…In order to investigate the mechanism of photodegradation under visible light, the degradation of paracetamol, one of the most popular analgesic and antipyretic drugs, was investigated. Since paracetamol does not absorb in the visible region of the spectrum, any reduction in concentration can be attributed to photocatalysis onto the MoO 2 support [30]. No reduction in concentration was recorded (Fig.…”

Section: Adsorption and Photodegradation Studiesmentioning

confidence: 95%

Visible light photodegradation of dyes and paracetamol by direct sensitization mechanism onto metallic MoO2 nanocrystals

Mauro

Natile

Landström

et al. 2021

Journal of Photochemistry and Photobiology A: Chemistry

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MoO 2 nanocrystals were prepared by solvothermal treatment of a Mo chloromethoxide at 250 • C in oleic acid. The monoclinic MoO 2 phase, with a mean crystallite size of 29 nm, formed through reduction of molybdenum bronzes. The as-prepared MoO 2 nanocrystals were free from organics, allowing their use in photodegradation tests of organic pollutants (methylene blue, rhodamine B, paracetamol), without any preliminary purification treatment of the nanocrystals. It was found that MoO 2 was an efficient adsorbent of methylene blue (43 mg g − 1 for 1.5 × 10 − 4 M concentration) in the dark and an efficient photodegradation catalyst under visible light (all methylene blue removed from the solution after 240 min). From the analysis of the combined photodegradation tests of rhodamine B and paracetamol, it was clarified that direct sensitization was responsible for photodegradation. This finding was related to the work function value of metallic MoO 2 , placed at more negative values if compared with other metallic materials.

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“…preparation, 1,4-benzoquinone, 4-nitrophenol, hydroquinone and N-acetyl-p-benzoquinone imine. [24][25][26][27][28] None of them could be distinguished from the background noise. The physicochemical results allow us to add this solution to the list of our systematic studies of the long-term stability of ready-to-use intravenous drug solutions 29 and the advance preparation by a CIVAS may be considered.…”

Section: Chemical Stabilitymentioning

confidence: 99%

Long-term stability of an infusion containing paracetamol, alizapride, ketorolac and tramadol in glass bottles at 5±3°C

Colsoul¹,

Hecq²,

Soumoy³

et al. 2019

Eur J Hosp Pharm

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Study of the paracetamol degradation pathway that generates color and turbidity in oxidized wastewaters by photo-Fenton technology

Cited by 44 publications

References 30 publications

Suitability of Different Titanium Dioxide Nanotube Morphologies for Photocatalytic Water Treatment

Suitability of Different Titanium Dioxide Nanotube Morphologies for Photocatalytic Water Treatment

Visible light photodegradation of dyes and paracetamol by direct sensitization mechanism onto metallic MoO2 nanocrystals

Long-term stability of an infusion containing paracetamol, alizapride, ketorolac and tramadol in glass bottles at 5±3°C

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