Journal
NEW JOURNAL OF CHEMISTRY
Volume 47, Issue 14, Pages 6856-6865Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3nj00021d
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In this study, a series of Cu-N-C-type catalysts were prepared and characterized, and they were used for the selective removal of simulated nitrate, achieving a nitrate removal rate of 73.9%, nitrogen selectivity of 93.9%, and energy utilization efficiency of 25.4%. Dual-metal CuxM1-x-N-C catalysts were also prepared and characterized, and the Cu0.8Ni0.2-N-C dual-metal catalyst exhibited higher nitrate removal rate (74.9%), nitrogen selectivity (95.0%), and energy utilization efficiency (35.5%).
Herein, a series of Cu-N-C-type catalysts was prepared and characterized by high-temperature annealing of Cu(II)tetrephenylporphyrin ((CuTPP)-T-II)-coated reduced graphene oxide (rGO). These catalysts were used for the selective removal of simulated nitrate, nitrogen selectivity, and energy utilization efficiency, which were achieved at 73.9%, 93.9%, and 25.4%, respectively. Dual-metal CuxM1-x-N-C catalysts were also prepared and characterized. The nitrate removal (74.9%), nitrogen selectivity (95.0%), and energy utilization efficiency (35.5%) were higher for the Cu0.8Ni0.2-N-C dual-metal catalyst.
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