Facile Preparation of Nitrogen-doped Porous Carbons via Salt Melt Synthesis with Efficient Catalytic Desulfurization Performance

A series of N-doped porous carbons were prepared using biomass D-glucose and nitrogen-rich melamine as precursors via facile salt melt synthesis method. The obtained N-doped porous carbons exhibit developed porosity (BET surface area up to 1355 m 2 /g) and notablely high nitrogen content (20.73wt%). X-ray photoelectron spectroscope (XPS) results indicate that the nitrogen configurations in the carbons are mainly pyrrolic and pyridinic functional groups, which are in favor of catalytic oxidation of hydrogen sulfide to elemental sulfur. High sulfur capacity of 1.10 g/g is achieved over the optimized carbon materials at room temperature and ambient pressure, showing the excellent adsorptive-catalytic performance of N-doped porous carbons for hydrogen sulfide removal. The facile synthesis route enables a great potential for the scale-preparation of N-doped porous carbons and application in pollution control.