Three-dimensional nickel foam electrode for efficient electro-Fenton in a novel reactor

Environmental Technology
Yingshi ZhuYanshi Zheng

Abstract

One of the bottlenecks often encountered in electro-Fenton technology is its low ability to produce hydrogen peroxide (H2O2). Thus, the hunt of suitable electrodes and reactor are a must to be tackled in order to improve the efficiency of the system. In this study, three-dimensional nickel foam was selected as cathode for in situ generating H2O2 efficiently and graphite was the control group in an enhanced oxygen mass transfer reactor. The micro-structure and electrochemical performance of electrodes were tested by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry (CV), electro-chemical impedance spectroscopy (EIS) and Tafel polarization techniques, respectively. The concentration of H2O2 produced by nickel foam cathode was 780.63 μmol/L and the removal efficiency of rhodamine B (RhB) was reached to 92.5% in 60 min. SEM and Tafel results showed that both nickel foam and graphite electrodes were porous structure cathodes. Moreover, CV and EIS experimental results indicated nickel foam electrode was controlled by charge transfer process while had a better transfer than graphite electrode. Electron spin resonance (ESR) spectra results demonstrated that the main oxidant species involved was ·OH, accoun...Continue Reading

References

Dec 17, 2009·Journal of Hazardous Materials·Yan FanLizhi Zhang
Mar 3, 2012·Journal of Hazardous Materials·E RosalesM A Sanromán
Mar 21, 2012·Journal of Hazardous Materials·Minghua ZhouMehmet A Oturan
Dec 1, 2012·Journal of Hazardous Materials·Shengnan SuZhenmin Ma
Mar 26, 2013·International Journal of Biometeorology·Zhiwei XuShilu Tong
Jul 17, 2014·ACS Applied Materials & Interfaces·Julia van DrunenGregory Jerkiewicz
Jan 25, 2016·Journal of Colloid and Interface Science·Xiangfu Jiang, Jianhan Huang
Jun 24, 2017·Environmental Science and Pollution Research International·Bakhta BouzayaniMaria Angeles Sanroman

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Citations

Sep 10, 2020·Environmental Science & Technology·Raúl A Márquez-MontesVictor Hugo Ramos-Sanchez

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Methods Mentioned

BETA
electron spin resonance
X-ray
ESR

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