Comparison of amoxicillin photodegradation in the UV/H2O2 and UV/persulfate systems: Reaction kinetics, degradation pathways, and antibacterial activity

2019 ◽  
Vol 372 ◽  
pp. 420-428 ◽  
Author(s):  
Yiqing Zhang ◽  
Yongjun Xiao ◽  
Yang Zhong ◽  
Teik-Thye Lim
Keyword(s):  
Antibacterial Activity ◽  
Reaction Kinetics ◽  
Degradation Pathways

Ferrate(VI) Oxidation of β-Lactam Antibiotics: Reaction Kinetics, Antibacterial Activity Changes, and Transformation Products

2014 ◽  
Vol 48 (17) ◽  
pp. 10380-10389 ◽  
Author(s):  
Anggita Karlesa ◽  
Glen Andrew D. De Vera ◽  
Michael C. Dodd ◽  
Jihye Park ◽  
Maria Pythias B. Espino ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Reaction Kinetics ◽  
Transformation Products

scholarly journals Oxidation of Cefalexin by Permanganate: Reaction Kinetics, Mechanism, and Residual Antibacterial Activity

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 2015 ◽  
Author(s):  
Yajie Qian ◽  
Pin Gao ◽  
Gang Xue ◽  
Zhenhong Liu ◽  
Jiabin Chen
Keyword(s):  
Antibacterial Activity ◽  
Double Bond ◽  
Reaction Kinetics ◽  
Rate Constant ◽  
Order Rate Constant ◽  
Membered Ring ◽  
Product Analysis ◽  
Activity Assessment ◽  
Real Wastewater ◽  
Cephalosporin Antibiotic

The oxidation of cefalexin (CFX), a commonly used cephalosporin antibiotic, was investigated by permanganate (PM) in water. Apparent second-order rate constant of the reaction between CFX and PM was determined to be 12.71 ± (1.62) M−1·s−1 at neutral pH. Lower pH was favorable for the oxidation of CFX by PM. The presence of Cl− and HCO3− could enhance PM-induced oxidation of CFX, whereas HA had negligible effect on CFX oxidation by PM. PM-induced oxidation of CFX was also significant in the real wastewater matrix. After addition of bisulfite (BS), PM-induced oxidation was significantly accelerated owing to the generation of Mn(III) reactive species. Product analysis indicated oxidation of CFX to three products, with two stereoisomeric sulfoxide products and one di-ketone product. The thioether sulfur and double bond on the six-membered ring were the reactive sites towards PM oxidation. Antibacterial activity assessment indicated that the activity of CFX solution was significantly reduced after PM oxidation.

Role of humic substances in the degradation pathways and residual antibacterial activity during the photodecomposition of the antibiotic ciprofloxacin in water

2016 ◽  
Vol 94 ◽  
pp. 1-9 ◽  
Author(s):  
Jazmín Porras ◽  
Cristina Bedoya ◽  
Javier Silva-Agredo ◽  
Alexander Santamaría ◽  
Jhon J. Fernández ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Humic Substances ◽  
Degradation Pathways

Sulfadimethoxine photodegradation in UV-C/H2O2 system: Reaction kinetics, degradation pathways, and toxicity

2020 ◽  
Vol 36 ◽  
pp. 101293
Author(s):  
Xiaodong Xin ◽  
Shaohua Sun ◽  
Anran Zhou ◽  
Mingquan Wang ◽  
Yan Song ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Degradation Pathways ◽  
Uv C ◽  
H2o2 System
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