The recycling of the expired donkey-hide gelatin pulp for N/S co-doped hollow carbon nano-spheres anode in sodium ion battery

• Published in: Environmental science and pollution research international 2020-04, Vol.27 (12), p.13467-13476
• Main Authors: Liu, Xianxi, Yu, Chengyi, Hou, Hongying, Xu, Zhiyu, Meng, Kun, Zhu, Jing, Wang, Lei
• Format: Article
• Language: English
• Subjects: Animals; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Carbon; Circular economy; Diameters; Doping; Earth and Environmental Science; Ecotoxicology; Electrochemistry; Electrodes; Environment; Environmental Chemistry; Environmental Health; Environmental science; Equidae; Gelatin; Morphology; Public concern; Research Article; Sodium; Sodium-ion batteries; Synergistic effect; Thin walled shells; Waste Water Technology; Water Management; Water Pollution Control
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-020-07840-2

How to reasonably manage and reutilize the waste expired liquid medicines has always been a puzzling public concern. For this reason, the waste expired medicine of donkey-hide gelatin pulp was recycled by hydrothermal carbonization and hard template for N/S co-doped hard carbon material, and its electrochemical Na-storage performances were also evaluated. The results showed that the resultant N/S co-doped hard carbon material manifested the morphology of hollow nano-spheres with the mean diameter of about 242.3 nm and the shell thickness of about 15 nm; N and S elements evenly distributed in carbon structure by in situ co-doping. Furthermore, N/S co-doped hard carbon also delivered the satisfactory electrochemical Na-storage capacities due to the synergistic effect of the unique hollow nano-spheres with thin shell and N/S co-doping. No doubt, the results would promote the circular economy mode of waste expired medicines.