Back to Search
Start Over
A facile-operation tubular electro-Fenton system combined with oxygen evolution reaction for flutriafol degradation: Modeling and Parameters optimizing.
- Source :
-
Electrochimica Acta . Aug2017, Vol. 246, p1200-1209. 10p. - Publication Year :
- 2017
-
Abstract
- An effective tubular membrane cathode coated by heterogeneous Fe 2 O 3 nanoparticles with carbon black (CB), combined with oxygen evolution reaction (OER), was fabricated to simplify the operation of electro-Fenton system. It was demonstrated that the cathode had a favorable suitability for this system owing to the excellent performance presented on Field emission scanning electron microscopy (FE-SEM), Transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and Cyclic voltammetry (CV). An optimal condition was obtained by response surface methodology (RSM) including pH of 6.7, current density of 13.0 A m −2 , membrane flux of 82.9 L m −2 h −1 , and CB/Fe of 6.2:1. Meanwhile, we achieved an estimated degradation efficiency of flutriafol (79.6%) in optimal condition without circulation of the influent. Effects of OER on the degradation of flutriafol via Ti/RuO 2 and Ti/SnO 2 -Sb tubular anodes were further interpreted by the gas production rate and the H 2 /O 2 value. High oxygen utilization of 78.8% was acquired when Ti/RuO 2 anode served as a sufficient oxygen provider. The electrocatalytic oxygen cycle, a key loop process, was firstly interpreted in this system, which achieved a great comprehensive electrocatalytic effect with the simplest operation and had a 74.5% removal of flutriafol in the verified experiment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 246
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 124491648
- Full Text :
- https://doi.org/10.1016/j.electacta.2017.06.133