Upcycling Waste Polyethylene Terephthalate to Produce Nitrogen-Doped Porous Carbon for Enhanced Capacitive Deionization
文献类型： 外文期刊
作者： Yu, Hui 1 ; Duan, Haiyan 2 ; Chen, Liang 4 ; Zhu, Weihua 1 ; Baranowska, Daria 5 ; Hua, Yumeng 5 ; Zhang, Dengsong 4 ; Chen, Xuecheng 5 ;
作者机构： 1.Beihua Univ, Coll Sci, Jilin 132013, Peoples R China
2.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
3.Shanghai Univ, Res Ctr Nano Sci & Technol, Shanghai 200444, Peoples R China
4.Jilin Acad Agr Sci, Soybean Res Inst, Changchun 130033, Peoples R China
5.West Pomeranian Univ Technol, Fac Chem Technol & Engn, PL-71065 Szczecin, Poland
关键词： PET; MOF; N-PC; CDI
期刊名称：MOLECULES （ 影响因子：4.6； 五年影响因子：5.0 ）
ISSN：
年卷期： 2024 年 29 卷 20 期
页码：
收录情况： SCI
摘要： Porous carbon with a high surface area and controllable pore size is needed for energy storage. It is still a significant challenge to produce porous carbon in an economical way. Nitrogen-doped porous carbon (N-PC) was prepared through carbonization of a mixture of waste PET-derived metal-organic frameworks (MOFs) and ammonium. The obtained N-PC exhibits a large surface area and controlled pore size. When utilized as an electrode material for supercapacitors, the N-PC exhibits a specific capacitance of 224 F g-1, significantly surpassing that of commercial activated carbon (AC), which has a capacitance of 111 F g-1. In the subsequent capacitive deionization (CDI) tests, the N-PC demonstrated a maximum salt adsorption capacity of 19.9 mg g-1 at 1.2 V in a NaCl electrolyte (0.5 g L-1), and the salt adsorption capacity increased to 24.7 mg g-1 at 1.4 V. The N-PC electrode also exhibited superior regeneration. The present work not only presents a potential approach to develop cost-effective electrodes for seawater purification but also paves the way for recycling of waste plastics into high value-added products.
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