Transformation products and mechanistic pathway of levofloxacin degradation in aqueous solution using advanced oxidation processes in the presence of BiVO4 and visible light

Meetani, Mohammed A.; Alzamly, Ahmed; Al-Dubaili, Naji; Malik, Mohamed F.; Elmerhi, Nada; Albadawi, Noor I.; Hisaindee, Soleiman; Selvaraj, Rengaraj; Rauf, Muhammad

doi:10.5004/dwt.2020.25124

Cited by 6 publications

(1 citation statement)

References 33 publications

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“…Over the decades, the emerging organic contaminants have caused water pollution. e organic pollutants that greatly contribute to water pollution are the discharge of untreated effluent containing organic compounds such as pharmaceuticals, phenols, pesticides and dyes from various industries [1]. Among the pollutants, dyes as the common synthetic organic substances are widely used in the industries.…”

Section: Introductionmentioning

confidence: 99%

Peroxymonosulfate activation using CoFe2O4/Fe2O3 nanocomposite for Acid Orange removal

Gasim

Gooi

2023

J. Appl. Mat. Tech.

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Herein, mixed–metal nanocomposite catalysts with various compositions (CoFe2O4/xFe2O3; x = 0, 0.25, 0.50, 0.75 and 1) were successfully fabricated by a co–precipitation method. The composition and morphology of the catalyst were systematically characterized. The catalyst with the highest Co content (CoFe2O4), exhibited the greatest efficiency for the acid orange 7 (AO7) degradation via peroxymonosulfate (PMS) activation. The effects of several experimental parameters including pH, CoFe2O4 loading, and PMS dosage on AO7 degradation were studied, and the catalytic activity was found to increase with the mentioned parameters. Moreover, CoFe2O4 displayed adequate reusability and was able to degrade AO7 for at least four consecutive cycles. In addition, the total organic carbon (TOC) removal of CoFe2O4 was determined while the catalyst stability was observed from the metal leaching in the treated solution. Furthermore, the magnetism of CoFe2O4 provides facile separation of the catalyst from the treated solution. Sulfate radicals (SO4•–) were identified as the main reactive species responsible for AO7 degradation.

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Section: Introductionmentioning

confidence: 99%

Peroxymonosulfate activation using CoFe2O4/Fe2O3 nanocomposite for Acid Orange removal

Gasim

Gooi

2023

J. Appl. Mat. Tech.

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Efficiency of levofloxacin removal from aqueous solutions using three-dimensional magnetic composite graphene oxide nanoparticle grafted onto melamine and chitosan dialdehyde

Nejad

Hassani

Panahi

2023

Int. J. Environ. Sci. Technol.

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Photocatalytic performance and interaction mechanism of reverse micelle synthesized Cu-TiO2 nanomaterials towards levofloxacin under visible LED light

Varma

Shukla

Tayade

et al. 2021

Photochem Photobiol Sci

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The degradation performance of Cu-TiO 2 nanomaterials towards levofloxacin (LFX) antibiotic was investigated under an environmentally benign visible LED light source. Cu-TiO 2 nanomaterials were prepared using the reverse micelle sol-gel method with different copper content ranging from 0.25 to 1.0 wt% concerning titania. Characterization of Cu-TiO 2 samples was performed by XRD, TEM, UV-Vis, BET, ICP-MS, FTIR and XPS techniques. 0.5 wt% Cu-TiO 2 showed crystallite size below 6 nm, surface area (69.85 m 2 /g) and significant visible light absorption capacity. Both Cu 1+ and Cu 2+ are formed in lower Cu-doped TiO 2 samples, whereas only Cu 2+ is present in higher Cu-doped TiO 2 samples as evident in XPS analysis. 0.5 wt% Cu-TiO 2 has shown the optimum photocatalytic degradation of 75.5% under 6 h. of a visible light source. FTIR analysis of LFX adsorbed Cu-TiO 2 materials indicated the pollutant-catalyst interaction, where the declining trend was observed in photocatalytic degradation efficiency for higher Cu-doped TiO 2 samples due to copper-LFX complex formation.Copper-LFX complexes are formed due to the presence of Cu 2+ in higher Cu-doped TiO 2 nanomaterials, which might have hindered the photocatalytic activity under visible light. Effects of initial pollutant concentration, catalyst loading and visible light intensity on the degradation of LFX are studied. Photocatalytic degradation pathways of LFX using best performing Cu-TiO 2 material were also proposed based on the LC-MS analysis.

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Transformation products and mechanistic pathway of levofloxacin degradation in aqueous solution using advanced oxidation processes in the presence of BiVO4 and visible light

Cited by 6 publications

References 33 publications

Peroxymonosulfate activation using CoFe2O4/Fe2O3 nanocomposite for Acid Orange removal

Peroxymonosulfate activation using CoFe2O4/Fe2O3 nanocomposite for Acid Orange removal

Efficiency of levofloxacin removal from aqueous solutions using three-dimensional magnetic composite graphene oxide nanoparticle grafted onto melamine and chitosan dialdehyde

Photocatalytic performance and interaction mechanism of reverse micelle synthesized Cu-TiO2 nanomaterials towards levofloxacin under visible LED light

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