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Norfloxacin degradation by a green carbon black-Ti/SnO2-Sb electrochemical system in saline water

Yu, Han LU ; Zhang, Xi; Zhao, Min; Zhang, Linus LU ; Dong, Heng and Yu, Hongbing (2019) In Catalysis Today 327. p.308-314
Abstract
This work aims to degrade a typical antibiotic Norfloxacin (NOR) in saline water with a novel green carbon black based Ti/SnO2-Sb electrochemical catalysis system (TSSC), with Ti/SnO2-Sb as anode (TSSA) and a novel carbon black air diffusion electrode as cathode (CBAC). An electrochemical system with TSSA and a platinum carbon (Pt/C) cathode was used as control (TSSP). The removal ratio, degradation condition and the biodegradability were evaluated, the degradation pathway and mechanism were investigated. The result showed an efficient removal performance in both TSSC and TSSP systems. The removal ratio dropped with the lower current densities and higher initial pollutant loading. A considerable better removal performance was found in TSSC... (More)
This work aims to degrade a typical antibiotic Norfloxacin (NOR) in saline water with a novel green carbon black based Ti/SnO2-Sb electrochemical catalysis system (TSSC), with Ti/SnO2-Sb as anode (TSSA) and a novel carbon black air diffusion electrode as cathode (CBAC). An electrochemical system with TSSA and a platinum carbon (Pt/C) cathode was used as control (TSSP). The removal ratio, degradation condition and the biodegradability were evaluated, the degradation pathway and mechanism were investigated. The result showed an efficient removal performance in both TSSC and TSSP systems. The removal ratio dropped with the lower current densities and higher initial pollutant loading. A considerable better removal performance was found in TSSC system, compared to that in TSSP system, when the low current density and saline concentration were applied. Meanwhile, 25.7% and 23.0% of COD removal ratios were obtained in TSSP and TSSC systems, respectively, in a short reaction time (25 min) and a very slight current density (0.18 mA cm−2). However, the TSSC showed a much more significant improvement of NOR biodegradability than that in TSSP system, indicating a considerable potential of TSSC system for both individual application and synergistic working with traditional biodegradation system for refractory antibiotics treatment. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Electrochemical, Ti/SnO2-Sb anode, Carbon electrode, Air diffusion cathode, Norfloxacin, Saline water
in
Catalysis Today
volume
327
pages
308 - 314
publisher
Elsevier
external identifiers
  • scopus:85046819325
ISSN
0920-5861
DOI
10.1016/j.cattod.2018.04.034
language
English
LU publication?
yes
id
70d2a4ff-6cbe-4871-b806-333ba4d13458
date added to LUP
2018-05-07 15:51:30
date last changed
2019-10-23 05:50:02
@article{70d2a4ff-6cbe-4871-b806-333ba4d13458,
  abstract     = {This work aims to degrade a typical antibiotic Norfloxacin (NOR) in saline water with a novel green carbon black based Ti/SnO2-Sb electrochemical catalysis system (TSSC), with Ti/SnO2-Sb as anode (TSSA) and a novel carbon black air diffusion electrode as cathode (CBAC). An electrochemical system with TSSA and a platinum carbon (Pt/C) cathode was used as control (TSSP). The removal ratio, degradation condition and the biodegradability were evaluated, the degradation pathway and mechanism were investigated. The result showed an efficient removal performance in both TSSC and TSSP systems. The removal ratio dropped with the lower current densities and higher initial pollutant loading. A considerable better removal performance was found in TSSC system, compared to that in TSSP system, when the low current density and saline concentration were applied. Meanwhile, 25.7% and 23.0% of COD removal ratios were obtained in TSSP and TSSC systems, respectively, in a short reaction time (25 min) and a very slight current density (0.18 mA cm−2). However, the TSSC showed a much more significant improvement of NOR biodegradability than that in TSSP system, indicating a considerable potential of TSSC system for both individual application and synergistic working with traditional biodegradation system for refractory antibiotics treatment. },
  author       = {Yu, Han and Zhang, Xi and Zhao, Min and Zhang, Linus and Dong, Heng and Yu, Hongbing},
  issn         = {0920-5861},
  keyword      = {Electrochemical,Ti/SnO2-Sb anode,Carbon electrode,Air diffusion cathode,Norfloxacin,Saline water},
  language     = {eng},
  pages        = {308--314},
  publisher    = {Elsevier},
  series       = {Catalysis Today},
  title        = {Norfloxacin degradation by a green carbon black-Ti/SnO2-Sb electrochemical system in saline water},
  url          = {http://dx.doi.org/10.1016/j.cattod.2018.04.034},
  volume       = {327},
  year         = {2019},
}