摘要
电去离子技术(CDI)是基于双电层理论发展起来的一种低能耗、低成本、绿色高效的脱盐技术,其吸附电极是电去离子装置的最核心部件,决定了装置的吸附能力。电去离子装置的电极材料需要有较高的比表面积、合理的孔径分布和良好的导电性,国内外学者对其进行了广泛的研究。研究发现,活性炭、碳纳米管、石墨烯、金属-有机框架材料等均具有优异的物理化学特性、较高的比表面积、良好的吸附性能,在电去离子系统中表现出较好的吸附能力,但是以上4种材料也存在着循环寿命短、化学稳定性差、能量回收率低等不足,在今后的研究中需要不断进行研究优化。
Capacitive deionization technology(GDI)is a low energy consumption,low cost,green and efficient desalination technology developed based on the theory of double electric layer,and its adsorption electrode is the most core component of the capacitive deionization device and determining the adsorption capacity of the device.The electrode material for electrode ionization device needs to have high specific surface area,reasonable pore size distribution and good conductivity,which has been extensively studied by scholars at home and abroad.Activated carbon,carbon nanotubes,graphene,and metal-organic framework materials all have excellent physicochemical characteristics,high specific surface area,good adsorption performance,and exhibit good adsorption capacity in the capacitor absorption device.However,the above four materials also have shortcomings such as short cycle life,poor chemical stability and low energy recovery,which need to be continuously researched and optimized in the future.
作者
臧永静
袁朋
李燕
乐茜蓉
杨德龙
Zang Yongjing;Yuan Peng;Li Yan;Yue Qianrong;Yang Delong(College of Pu’er Tea,Western-Yunnan University of Applied Technology,Pu’er 665000)
出处
《化工新型材料》
CAS
CSCD
北大核心
2023年第S02期80-86,91,共8页
New Chemical Materials
基金
云南省地方高校基础研究联合专项项目(202101BA070001-287)
大学生创新创业训练计划项目(202114623009)
关键词
电去离子技术
活性炭
碳纳米管
石墨烯
金属-有机框架材料
capacitive deionization technology
activated carbon
carbon nano-tube
graphene
metal-organic frame materials
