Improvement of microalgae harvesting by magnetic nanocomposites coated with polyethylenimine
文献类型：期刊论文
| 作者 | Hu, Yi-Ru1,2,3; Guo, Chen1,2,3; Wang, Feng1,2; Wang, Shi-Kai1,2,3; Pan, Feng1,2; Liu, Chun-Zhao1,2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2014-04-15 |
| 卷号 | 242期号:1页码:341-347 |
| 关键词 | Magnetic separation Fe3O4-PEI nanocomposites Chlorella ellipsoidea Microalgae harvesting |
| ISSN号 | 1385-8947 |
| 其他题名 | Chem. Eng. J. |
| 中文摘要 | Fe3O4 nanoparticles were functionally coated with polyethylenimine (PEI), which contained a high concentration of -NH2 groups, for the efficient harvesting of microalgae. The functional magnetic nanocomposites were 12 nm in diameter and 69.77 emu/g of saturation magnetization. Using a nanocomposite dosage of 20 mg/L for harvesting Chlorella ellipsoidea cells, a harvesting efficiency of 97% was achieved within 2 min. Increasing the temperature resulted in an increase in harvesting efficiency. The adsorption isotherm data fit the Langmuir model, suggesting that the adsorption was monolayer. The adsorption capacity of the Fe3O4-PEI nanocomposites for the microalgal cells reached up to 93.46 g-DCW/g-nanocomposites through electrostatic attraction and nanoscale interactions between the nanocomposites and the microalgal cells. The functional nanocomposites provide a base for efficient microalgae harvesting with clear advantages such as rapid execution, low energy consumption, and improves water-use in the algal harvesting process. (C) 2013 Elsevier B.V. All rights reserved. |
| 英文摘要 | Fe3O4 nanoparticles were functionally coated with polyethylenimine (PEI), which contained a high concentration of -NH2 groups, for the efficient harvesting of microalgae. The functional magnetic nanocomposites were 12 nm in diameter and 69.77 emu/g of saturation magnetization. Using a nanocomposite dosage of 20 mg/L for harvesting Chlorella ellipsoidea cells, a harvesting efficiency of 97% was achieved within 2 min. Increasing the temperature resulted in an increase in harvesting efficiency. The adsorption isotherm data fit the Langmuir model, suggesting that the adsorption was monolayer. The adsorption capacity of the Fe3O4-PEI nanocomposites for the microalgal cells reached up to 93.46 g-DCW/g-nanocomposites through electrostatic attraction and nanoscale interactions between the nanocomposites and the microalgal cells. The functional nanocomposites provide a base for efficient microalgae harvesting with clear advantages such as rapid execution, low energy consumption, and improves water-use in the algal harvesting process. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | WASTE-WATER ; SEPARATION ; NANOPARTICLES ; ADSORPTION ; BIOMASS ; NANNOCHLOROPSIS ; REMOVAL |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000333787000040 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/10915]  |
| 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, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem 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 | Hu, Yi-Ru,Guo, Chen,Wang, Feng,et al. Improvement of microalgae harvesting by magnetic nanocomposites coated with polyethylenimine[J]. CHEMICAL ENGINEERING JOURNAL,2014,242(1):341-347. |
| APA | Hu, Yi-Ru,Guo, Chen,Wang, Feng,Wang, Shi-Kai,Pan, Feng,&Liu, Chun-Zhao.(2014).Improvement of microalgae harvesting by magnetic nanocomposites coated with polyethylenimine.CHEMICAL ENGINEERING JOURNAL,242(1),341-347. |
| MLA | Hu, Yi-Ru,et al."Improvement of microalgae harvesting by magnetic nanocomposites coated with polyethylenimine".CHEMICAL ENGINEERING JOURNAL 242.1(2014):341-347. |
入库方式： OAI收割
来源：过程工程研究所
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