Chemical filtration of Cr (VI) with electrospun chitosan nanofiber membranes
文献类型：期刊论文
| 作者 | Li, Lei1,2,3; Li, Yanxiang1,2; Yang, Chuanfang1,2 |
| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2016-04-20 |
| 卷号 | 140期号:APR页码:299-307 |
| 关键词 | Electrospun chitosan nanofiber membrane Chemical filtration Chromium (VI) adsorption Breakthrough curves Model fitting |
| ISSN号 | 0144-8617 |
| 通讯作者 | Yang, CF (reprint author), Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China. |
| 英文摘要 | Chitosan nanofibers (average diameter of 75 nm) were electrospun on polyester (PET) scrim to form composite nanofiber membranes with controlled pore size. The membranes were then stacked as a membrane bed for chemical filtration of Cr (VI) of 1-5 mg/L. The performance of the bed with respect to loading capacity at breakthrough, bed saturation and utilization efficiency were carefully investigated. The results showed that while these three parameters were dependent on pH, flow rate, flow distribution and packed pattern of the membrane, the latter two were less affected by feed Cr (VI) concentration and bed length. The maximum bed loading capacity for 1 mg/L Cr (VI) filtration at breakthrough was found to be 16.5 mgchromium/g-chitosan, higher than the static adsorption capacity of 11.0 mg-chromium/g-chitosan using nanofiber mats, indicating the membranes' better potential for dynamic adsorption. The minimum bed length required to avoid breakthrough was determined to be three layers of stacked membranes with nanofiber deposition density of 1 g/m2 by applying bed depth service time (BDST) model. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Organic ; Polymer Science |
| 研究领域[WOS] | Chemistry ; Polymer Science |
| 关键词[WOS] | AQUEOUS-SOLUTION ; METAL-IONS ; ADSORPTION ; REMOVAL ; FIBERS ; BIOSEPARATIONS ; SORPTION ; DESIGN ; COLUMN ; COPPER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369958300038 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20637]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem 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 | Li, Lei,Li, Yanxiang,Yang, Chuanfang. Chemical filtration of Cr (VI) with electrospun chitosan nanofiber membranes[J]. CARBOHYDRATE POLYMERS,2016,140(APR):299-307. |
| APA | Li, Lei,Li, Yanxiang,&Yang, Chuanfang.(2016).Chemical filtration of Cr (VI) with electrospun chitosan nanofiber membranes.CARBOHYDRATE POLYMERS,140(APR),299-307. |
| MLA | Li, Lei,et al."Chemical filtration of Cr (VI) with electrospun chitosan nanofiber membranes".CARBOHYDRATE POLYMERS 140.APR(2016):299-307. |
入库方式： OAI收割
来源：过程工程研究所
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