Fe/Cu Composite Electrode Prepared by Electrodeposition and Its Excellent Behavior in Nitrate Electrochemical Removal
Source abstract
Abstract
The Fe/Cu electrode, prepared via a cathodic electro-deposition method, was applied as cathode material for electrochemical denitrification and achieved an enhanced NO 3 − -N removal efficiency. The Fe/Cu electrode was characterized by SEM and EDS. The results showed that nano-Fe particles were evenly distributed on the surface of Cu foam. Compared with Cu foam (24.3%) and Fe (76.0%), the Fe/Cu electrode reached a much higher nitrate removal efficiency (98.6%) within 90 min. Influencing factors of electrolysis such as initial NO 3 − -N concentration, current density, pH and temperature were further studied, showing that high current density and temperature were conductive to NO 3 − -N removal. What's more, effect of Cl − on decreasing NH 4 + -N generation and promoting TN removal was investigated thoroughly. Result presented that addition of 1.0 g L −1 Cl − greatly decreased NH 4 + -N generation, leading to a 98.2% TN removal efficiency after 3 h treatment. Based on the analysis experimental results, a possible pathway of nitrate electro-reduction was proposed. Additionally, the Fe/Cu composite electrode maintained excellent efficiency and qualified iron leaching, demonstrating its potential application in the treatment of nitrate contaminated water.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Environmental remediation with nanomaterials · Caching and Content Delivery
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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