南京理工大学学报（自然科学版）2024，Vol.48Issue(1)：104-111,8.DOI:10.14177/j.cnki.32-1397n.2024.48.01.011
多孔碳纤维电极材料的制备及电容去离子性能研究
Porous carbon nanofiber electrode for capacitive deionization
摘要
Abstract
Due to the relatively low specific surface area(SSA)of carbon nanofibers,their desalination efficiency in capacitive deionization(CDI)applications is not satisfactory.In this study,we prepared zeolitic imidazolate framework-8(ZIF-8)and polyacrylonitrile(PAN)composite nanofibers using electrospinning technology and obtained porous carbon nanofiber electrode materials through carbonization process.After optimizing the composition and carbonization process,the resulting carbon fiber electrode exhibited an SSA of 398.74 m2/g and a pore volume of 0.180 cm3/g,respectively.At voltages of 1.2 V and 1.6 V,the salt adsorption capacity of the electrode for a 500 mg/L NaCl solution(50 mL)reached 21.16 mg/g and 39.04 mg/g,respectively.Furthermore,electrochemical testing revealed that increasing the porosity of carbon nanofiber electrodes can improve the double-layer capacitance to a certain extent,thereby achieving higher ion adsorption capacity and more stable energy storage performance.关键词
电容去离子/吸附/碳纳米纤维/沸石咪唑酯骨架-8/静电纺丝Key words
capacitive deionization/adsorption,carbon nanofibers/zeolitic imidazolate frameworks-8/electrospinning分类
资源环境引用本文复制引用
张惠中,田家宇,李健生,朱志高..多孔碳纤维电极材料的制备及电容去离子性能研究[J].南京理工大学学报（自然科学版）,2024,48(1):104-111,8.基金项目
国家自然科学基金(52000105) （52000105）
江苏省自然科学基金(BK20200478) （BK20200478）
中央高校基本科研业务费专项资金(30922010806) （30922010806）
