Nitrogen and sulfur co‐doped graphene‐like carbon (N,S‐GLC) is successfully prepared in a one‐step hydrothermal reaction of glucose with industrial dye wastewater followed by chemical activation. The nitrogen and sulfur are sourced entirely from the industrial wastewater. The process not only provides an alternative way of treating industry wastewater, but also offers a green route for recovering energy from the waste in the form of chemicals. The resultant N,S‐GLC shows a good degree of graphitization, a high specific surface area (1734 m² g⁻¹), and moderate heteroatom doping (N: 2.1 at%, S: 0.7 at%). The N,S‐GLC electrode displays high specific capacitance of 275 F g⁻¹ at a current density of 0.5 A g⁻¹ with a retention of 65.4% at 20 A g⁻¹ in 6 m KOH. Moreover, the assembled symmetrical supercapacitor cell shows a capacitance of 38 F g⁻¹ at a current density of 0.5 A g⁻¹, which is equivalent to an energy density of 6.4 Wh kg⁻¹ at a power density of 275.0 W kg⁻¹. This approach provides an alternative and sustainable way of fabricating heteroatom‐doped graphene‐like carbon materials for use in high‐performance supercapacitors.

中文翻译：

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来自工业染料废水的氮和硫共掺杂类石墨烯碳用作高性能超级电容器电极。

通过葡萄糖与工业染料废水的一步水热反应，然后进行化学活化，成功制备了氮和硫共掺杂的类石墨烯碳（N，S-GLC）。氮和硫完全来自工业废水。该工艺不仅提供了一种处理工业废水的替代方法，而且还提供了一条从化学品形式的废物中回收能源的绿色途径。所得的N,S-GLC表现出良好的石墨化程度、高比表面积(1734 m ² g ^-1 )和适度的杂原子掺杂(N: 2.1 at%, S: 0.7 at%)。N,S-GLC电极在0.5 A g ^-1的电流密度下表现出275 F g ^-1的高比电容，在6 m KOH中在20 A g ^-1下的保留率为65.4% 。此外，组装的对称超级电容器在0.5 A g ^{-1 的}电流密度下显示出38 F g ^-1的电容，相当于在275.0 W kg ^{-1的功率密度下的6.4 Wh kg -1}的能量密度。 。这种方法提供了一种制造用于高性能超级电容器的杂原子掺杂石墨烯类碳材料的替代且可持续的方法。