摘要

    如何合理处置和回收有害废物抗生素菌丝体残留物（AMR）的问题是一个关键问题。含有富氮有机物的AMR显示出一种有前途的氮掺杂多孔碳（NPC）替代原料。在此，使用废弃的土霉素菌丝体残留物（OMR）制备了具有超高表面积（2574.9 m2 g-1）的NPC，并进一步用作超级电容器的电极。包括扫描/透射电子显微镜，Brunauer-Emmett-Teller测量和电化学阻抗谱在内的一系列实验表明，NPC-2-900表现出高N含量，大表面积和高电导率。 NPC的电化学性能通过循环伏安法，恒电流充/放电循环和速率能力测试进行了测试。优化显示的NPC-2-900可以区分比电容（307 F g-1），循环稳定性（即使在20 A g-1的高电流密度下，经过2000次循环仍能保持95％以上的电容）和出色的速率性能。尤其令人感兴趣的是，qPCR测试表明ARG在从OMR到NPC的转化过程中减少了。

    The question of how to reasonably dispose and recycle antibiotic mycelial residues (AMRs), a hazardous waste, is a critical issue. The AMRs containing nitrogen-rich organic matters shows a promising alternative feedstock of nitrogen-doped porous carbons (NPCs). Here, the NPCs with the ultrahigh surface area (2574.9 m2 g−1) were prepared by using the discarded oxytetracycline mycelial residues (OMRs) and further used as an electrode for supercapacitor. A series of experiments including scanning/transmission electron microscope, Brunauer-Emmett-Teller measurement, and electrochemical impedance spectrum revealed that the NPC-2-900 exhibited a high N content, large surface area, and high electrical conductivity. The electrochemical performance of the NPC was tested by cyclic voltammetry, galvanostatic charge/discharge cycling, and rate capability test. The optimized NPC-2-900 displayed distinguish specific capacitance (307 F g−1), cycling stability (over 95% capacitance retention after 2000 cycles even at a high current density of 20 A g−1) and superior rate performance. Of particular interest, the qPCR test indicates the ARGs were reduced in the conversion process from OMRs to NPCs.

    https://www.sciencedirect.com/science/article/abs/pii/S0013935120311580