Abstract
Nowadays, ammonia–nitrogen has been brought into focus for its hazards to the ecological environment. Electrocatalytic oxidation technology, with easy-to-operate and environmental friendliness, is expected to be applied to degrade ammonia–nitrogen. However, the key issues are the sluggish kinetics and high overpotential in ammonia oxidation reaction (AOR). In this work, a unique three-dimensional nanoflower-like structure electrode was constructed by Co, S co-doping NiCu for catalyzing AOR. This electrode provides a huge contact area in the active substance/electrolyte interface, greatly shortening the ion transport paths. Electrochemical tests confirmed that the Ni1Cu1Co0.5-S-T/CP electrode obtained a high current density of 121.1 mA/cm2 at 1.65 V vs RHE, a low onset potential of 1.241 V and demonstrated an excellent stability for at least 12 h. In the 8-hour ammonia–nitrogen removal experiment, a removal rate of 98.07 % and a high N2 selectivity of 81.21 % were obtained. This work demonstrated that it was expected to provide an eco-friendly method for ammonia–nitrogen wastewater treatment based on the electrode.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
