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摘要
A novel nitrogen-doped porous carbon was successfully prepared using petroleum coke as the carbon source and the solid waste from melamine production as the nitrogen source. The catalyst exhibited excellent H2S catalytic oxidation capacity in room temperature with a breakthrough sulfur capacity of 398.4mg/g. Three process parameters, namely, the amount of activator, nitrogen doping temperature and nitrogen source, changed the specific surface, N configuration and N content of the catalysts, respectively, during the preparation process. By optimizing the process conditions, the highest reactive center, pyridine N, could be achieved at 2.88at.%. Compared with the catalyst prepared using traditional raw material, it achieves waste utilization and green preparation. The results of this paper provide a new approach for the preparation of porous carbon materials with low cost and high breakthrough sulfur capacity. ? 2023 Chinese Society for Environmental Sciences.
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