Photocatalytic degradation of vancomycin using titanium dioxide and optimization by central composite design

Dehghani, Fatemeh; Yousefinejad, Saeed; Dehghani, Mansooreh; Borghei, Seyed Mehdi; Javid, Amir Hossein

doi:10.1007/s13762-022-04117-8

Cited by 4 publications

(1 citation statement)

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“…Incomplete removal of antibiotics and other drugs from wastewaters at WWTPs requires alternative or supplementary approaches, such as, e.g., advanced oxidation processes (AOPs) using reactive oxygen species (ROS), including atomic oxygen, hydroxyl, and other radicals, able to degrade organic contaminants in water [3,10]. For example, the application of UV/TiO 2 combination showed 89.5% degradation of VMN in 36 min at the initial concentration of 58 mg L −1 , TiO 2 dosage of 55 mg L −1 , and temperature 40 • C [11].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Antibiotic Vancomycin by UV Photolysis and Pulsed Corona Discharge Combined with Extrinsic Oxidants

et al. 2023

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Antibiotics are the most frequently detected pharmaceuticals in the environment creating conditions for the development of resistant genes in bacteria. Degradation and mineralization of glycopeptide antibiotic vancomycin (VMN) were examined by UV photolysis, pulsed corona discharge (PCD), and their combinations with extrinsic oxidants, hydrogen peroxide (HP), peroxydisulfate (PDS), and peroxymonosulfate (PMS). Both combinations were effective in VMN degradation and faster at pH 11 than in acidic or neutral media. Combined with the UV photolysis, HP showed a higher oxidation rate than other oxidants, whereas PMS and PDS proved to be more efficient in combinations with PCD. In contrast to low-to-moderate mineralization of VMN in the UV/oxidant combinations, PCD and PCD/oxidant combinations appeared to be more effective, reaching up to 90% of TOC removal in acidic/neutral solutions. Application of extrinsic oxidants resulted in an energy efficiency of VMN 90% oxidation improved from 36 to 61 g kW−1 h−1 in HP-assisted photolysis, and from 195 to 250 g kW−1 h−1 in PCD with additions of HP and PDS, thus showing the promising character of the combined treatment.

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Section: Introductionmentioning

confidence: 99%