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| Removal of chloride ions using a bismuth electrode in capacitive deionization (CDI) | |
| Chang, Junjun1,2,3; Duan, Feng1,2; Su, Chunlei1,2,3; Li, Yuping1,2,3; Cao, Hongbin1,2 | |
| 2020-02-01 | |
| Source Publication | ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
 |
| ISSN | 2053-1400 |
| Volume | 6Issue:2Pages:373-382 |
| Abstract | 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. |
| DOI | 10.1039/c9ew00985j |
| Language | 英语 |
| WOS Keyword | ACTIVATED CARBON ; WATER DESALINATION ; BRACKISH-WATER ; MEMBRANE ; PERFORMANCE ; FLUORIDE ; AEROGELS ; ENERGY |
| Funding Project | National Natural Science Foundation of China (NSFC)[21377130] ; National Natural Science Foundation of China (NSFC)[51878645] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| WOS Subject | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| Funding Organization | National Natural Science Foundation of China (NSFC) |
| WOS ID | WOS:000513242200011 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/39296 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Li, Yuping |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation 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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