AI Article Synopsis
- The electrochemical reduction of nitrates to ammonia from electroplating wastewater is a promising method for environmental sustainability, but the slow charge transfer hampers efficiency.
- A new oxygen-incorporated CuNFe antiperovskite was created using magneto-thermal stimulation, achieving a notable ammonia yield of 1.34mmol h cm and a Faradaic efficiency of 95.5% at -0.6 V.
- A novel membraneless flow electrolyzer was also developed, allowing for the simultaneous reduction of nitrates and recovery of ammonia, making it a practical solution for treating real electroplating wastewater.
Article Abstract
The electrochemical reduction of nitrates from real electroplating wastewater to ammonia offers an appealing solution for environmental sustainability and waste recycling. However, the slow charge transfer between the catalyst and adsorbent limits their catalytic performance. Herein, a typical oxygen-incorporated CuNFe antiperovskite was synthesized successfully using the magneto-thermal stimulation strategy, achieving an impressive ammonia yield rate of 1.34mmol h cm and a high Faradaic efficiency of 95.5 % at -0.6 V vs. RHE. Furthermore, we developed a membraneless flow electrolyzer paired with an ammonia recovery device that synchronizes nitrate reduction and ammonia recovery for treating real electroplating wastewater. This work presents a viable approach for developing high-performance oxygen-incorporated antiperovskites suitable for treating real electroplating wastewater.
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| http://dx.doi.org/10.1016/j.jcis.2024.12.122 | DOI Listing |
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