Preparation and electrochemical properties of porous carbon materials derived from waste hollow fiber filter membrane

• Published in: Journal of applied electrochemistry 2021-07, Vol.51 (7), p.1083-1092
• Main Authors: Zhu, He, Gao, Zhishang, Fan, Songhong, Zhang, Mingjian, Tang, Zhangzhang, Ren, Zhong, Feng, Huixia, Luo, Heming, Zhang, Jianqiang
• Format: Article
• Language: English
• Subjects: Argon; Capacitance; Carbon; Chemistry; Chemistry and Materials Science; Discharge; Electrochemical analysis; Electrochemistry; High temperature; Industrial Chemistry/Chemical Engineering; Membranes; Physical Chemistry; Pore size distribution; Porous materials; Pyrolysis; Remediation; Research Article
• ISSN: 0021-891X; 1572-8838
• DOI: 10.1007/s10800-021-01559-9

In this paper, waste hollow fiber filter membrane is used as a carbon source and KOH as an activator under an atmosphere of protective argon gas to prepare hollow fiber filter membrane-based porous carbon material ZKC-T via a high-temperature pyrolysis activation method. Hollow fiber filter membrane-based porous carbon ZKC-T was found to consist of amorphous carbon, with an irregular three-dimensional network interconnecting pore structure, specific surface area of up to 2934 m 2  g −1 , and a reasonable pore size distribution. Cyclic voltammetry and constant current charge and discharge tests showed that the hollow fiber filter-based porous carbon material ZKC-700 has excellent electrochemical performance. The carbon material shows a specific capacitance of up to 289 F g −1 at a current density of 1 A g −1 in 6 M KOH electrolyte. In addition, the material shows good cycle stability; after 5000 charge and discharge cycles, the capacitance retention rate is as high as 92.8%. The hollow fiber filter membrane-based porous carbon prepared by this method exhibits excellent electrochemical properties. Graphic abstract