Gökçe Yavuz
Department of Chemical Engineering, Faculty of Engineering, Ankara University, Ankara, Turkiye.
Turk J Chem. 2023 Jul 8;47(4):789-800. doi: 10.55730/1300-0527.3579. eCollection 2023.
The rapid rise of the world population increases the annual amount of waste textile products. Textile products create a significant amount of CO, water, and chemical footprints during production. Therefore, the reusability of textile products has an important environmental and economic impact. Waste denim was used in this study to produce activated carbon (AC) samples as the alternative substance for supercapacitor electrodes. Characterisation studies showed that AC samples contain nitrogen originating from the elastane in the denim structure. Electrochemical characterisation tests proved the pseudocapacitive behaviour of the denim-derived AC due to the nitrogen content. Specific capacitance values observed for the three-electrode and two-electrode cell configurations were 95.93 F/g and 54.64 F/g at 1 A/g, respectively. Good capacitive retention (83.01%) of the cell after 3000 galvanostatic charge-discharge cycles at 1 A/g shows that waste denim can be considered as raw material for energy storage systems.
世界人口的快速增长增加了每年废弃纺织品的数量。纺织品在生产过程中会产生大量的二氧化碳、水和化学足迹。因此，纺织品的可重复使用性具有重要的环境和经济影响。本研究使用废弃牛仔布来制备活性炭（AC）样品，作为超级电容器电极的替代材料。表征研究表明，AC样品含有源自牛仔布结构中氨纶的氮。电化学表征测试证明，由于含氮量，源自牛仔布的AC具有赝电容行为。在1 A/g电流密度下，三电极和两电极电池配置的比电容值分别为95.93 F/g和54.64 F/g。在1 A/g电流密度下进行3000次恒电流充放电循环后，电池具有良好的电容保持率（83.01%），这表明废弃牛仔布可被视为储能系统的原材料。
