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Removal of chloride ions using a bismuth electrode in capacitive deionization (CDI)

文献类型：期刊论文

作者Chang, Junjun1,2,3; Duan, Feng1,2; Su, Chunlei1,2,3; Li, Yuping1,2,3; Cao, Hongbin1,2
刊名ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
出版日期2020-02-01
卷号6期号:2页码:373-382
ISSN号2053-1400
DOI10.1039/c9ew00985j
英文摘要Non-carbon materials in capacitive deionization (CDI) can help to enhance the capacity of removed ions. Here, we report for the first time the removal of chloride ions (Cl-) with a bismuth (Bi) anode when coupled with an activated carbon (AC) cathode in CDI. The effects of carbon black in the Bi electrode, applied voltage, electrode mass loading and initial concentration on Cl- removal are investigated. Moreover, its cycle performance is also tested. Results show that addition of carbon black to a Bi electrode (Bi@CB) significantly improves Cl- removal. The declining trend of Cl- concentration and appearance of peaks assigned to products of bismuth oxychloride (BiOCl) in XRD patterns confirm Cl- storage by the Bi electrode, which is enhanced with an increase in voltage. When coupled with AC in a fixed mass, increasing the Bi mass does not contribute to more Cl- removal. Although the cycle performance is not excellent (the attenuation rate is 74% after 10 cycles), its chloride removal capacity is similar to 2-3 times the value of AC (e.g. 0.95 vs. 0.32 mmol g(Bi)(-1) at 1.2 V in 500 mg L-1 NaCl solution). Besides, the Bi-AC electrode pair in CDI is more suitable to remove Cl- from a solution with a Cl- concentration of below 600 mg L-1.
WOS关键词ACTIVATED CARBON ; WATER DESALINATION ; BRACKISH-WATER ; MEMBRANE ; PERFORMANCE ; FLUORIDE ; AEROGELS ; ENERGY
资助项目National Natural Science Foundation of China (NSFC)[21377130] ; National Natural Science Foundation of China (NSFC)[51878645]
WOS研究方向Engineering ; Environmental Sciences & Ecology ; Water Resources
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000513242200011
资助机构National Natural Science Foundation of China (NSFC)
源URL[http://ir.ipe.ac.cn/handle/122111/39295]  
专题中国科学院过程工程研究所
通讯作者Li, Yuping
作者单位1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chang, Junjun,Duan, Feng,Su, Chunlei,et al. Removal of chloride ions using a bismuth electrode in capacitive deionization (CDI)[J]. ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,2020,6(2):373-382.
APA Chang, Junjun,Duan, Feng,Su, Chunlei,Li, Yuping,&Cao, Hongbin.(2020).Removal of chloride ions using a bismuth electrode in capacitive deionization (CDI).ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,6(2),373-382.
MLA Chang, Junjun,et al."Removal of chloride ions using a bismuth electrode in capacitive deionization (CDI)".ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY 6.2(2020):373-382.

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来源：过程工程研究所

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