Electro-catalytic degradation of sulfisoxazole by using graphene anode
Yanyan Wang , Shuan Liu , Ruiping Li , Yingping Huang
,
Chuncheng Chen
DOI:10.1016/j.jes.2015.08.014
Received April 28, 2015,Revised August 27, 2015, Accepted August 28, 2015, Available online December 02, 2015
Volume 28,2016,Pages 54-60
Graphite and graphene electrodes were prepared by using pure graphite as precursor. The electrode materials were characterized by a scanning electron microscope (SEM), X-ray diffraction (XRD) and cyclic voltammetry (CV) measurements. The electro-catalytic activity for degradation of sulfisoxazole (SIZ) was investigated by using prepared graphene or graphite anode. The results showed that the degradation of SIZ was much more rapid on the graphene than that on the graphite electrode. Moreover, the graphene electrode exhibited good stability and recyclability. The analysis on the intermediate products and the measurement of active species during the SIZ degradation demonstrated that indirect oxidation is the dominant mechanism, involving the electro-catalytic generation of 
OH and O2− as the main active oxygen species. This study implies that graphene is a promising potential electrode material for long-term application to electro-catalytic degradation of organic pollutants.
OH and O2− as the main active oxygen species. This study implies that graphene is a promising potential electrode material for long-term application to electro-catalytic degradation of organic pollutants.
