Tan Zhouliang, Yu Feng, Liu Liu, Jia Xin, Lv Yin, Chen Long, Xu Yisheng, Shi Yulin, Guo Xuhong
Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
Nanomaterials (Basel). 2019 Jun 17;9(6):892. doi: 10.3390/nano9060892.
In this paper, we report a complete solution for enhanced sludge treatment involving the removal of toxic metal (Cu(II)) from waste waters, subsequent pyrolytic conversion of these sludge to Cu-doped porous carbon, and their application in energy storage systems. The morphology, composition, and pore structure of the resultant Cu-doped porous carbon could be readily modulated by varying the flocculation capacity of Cu(II). The results demonstrated that it exhibited outstanding performance for supercapacitor electrode applications. The Cu(II) removal efficiency has been evaluated and compared to the possible energy benefits. The flocculant dosage up to 200 mg·L was an equilibrium point existing between environmental impact and energy, at which more than 99% Cu(II) removal efficiency was achieved, while the resulting annealed product showed a high specific capacity (389.9·F·g at 1·A·g) and good cycling stability (4% loss after 2500 cycles) as an electrode material for supercapacitors.
在本文中，我们报告了一种用于强化污泥处理的完整解决方案，该方案涉及从废水中去除有毒金属（Cu(II)），随后将这些污泥热解转化为Cu掺杂的多孔碳，并将其应用于储能系统。通过改变Cu(II)的絮凝能力，可以很容易地调节所得Cu掺杂多孔碳的形态、组成和孔结构。结果表明，它在超级电容器电极应用中表现出优异的性能。对Cu(II)的去除效率进行了评估，并与可能的能源效益进行了比较。高达200 mg·L的絮凝剂用量是环境影响和能源之间的一个平衡点，在该点上实现了超过99%的Cu(II)去除效率，而所得的退火产物作为超级电容器的电极材料表现出高比容量（在1 A·g时为389.9 F·g）和良好的循环稳定性（2500次循环后损失4%）。
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