In recent years, development of inexpensive and environmentally benign processes for catalytic conversion of lignocellulose biomass or biomass-derived carbohydrates into platform chemicals has gained increasing attention while also facing technological challenges related to the higher production costs. Here, we synthesized an inexpensive nitrogen-doped carbon (NC) materials by carbonization of bamboo sawdust mixed with melamine and K₂CO_3. The as-prepared NC materials were used first-time as catalysts for the selective oxidation of crude 5-HMF obtained from HFCS-90 into FDCA. Based on the obtained catalyst characterization and activity results, the rate of formation of FDCA is mainly dependent on the carbonization temperature of the catalyst, the quantity of graphitic N, and its related lattice defects in the carbon matrix. Under the optimized reaction conditions (NC-700 catalyst, 160 ^oC, 6h, and 2 MPa O₂), the reaction obtained 100% HMF conversion and 83% FDCA yield using crude 5-HMF (88% purity).

近年来，开发廉价的，对环境无害的将木质纤维素生物质或生物质衍生的碳水化合物催化转化为平台化学物质的方法，引起了越来越多的关注，同时还面临着与更高生产成本相关的技术挑战。在这里，我们通过碳化与三聚氰胺和K ₂ CO ₃混合的竹锯屑，合成了一种廉价的氮掺杂碳（NC）材料_。所制备的NC材料首次用作催化剂，用于将由HFCS-90获得的粗制5-HMF选择性氧化为FDCA。基于获得的催化剂表征和活性结果，FDCA的形成速率主要取决于催化剂的碳化温度，石墨氮的数量及其在碳基质中的相关晶格缺陷。在优化的反应条件下（NC-700催化剂，160 ^o C，6h和2 MPa O ₂），使用粗制的5-HMF（88％纯度），该反应获得100％的HMF转化率和83％的FDCA收率。