High rejection performance ultrafiltration membrane with ultrathin dense layer fabricated by the movement and dissolution of metal-organic frameworks | |
Wang, Qi; Zhang, Shaohu; Ji, Xiwei; Ran, Fen | |
刊名 | New Journal of Chemistry |
2020-08-28 | |
卷号 | 44期号:32页码:13745-13754 |
关键词 | Azo dyes Chemicals removal (water treatment) Mammals Membranes Metals Organic polymers Organometallics Ultrafiltration Water pollution Bovine serum albumins Polyethersulfone membrane Polyethersulfones Rejection performance Rejection ratios Transport resistance Ultra-filtration membranes Water transport |
ISSN号 | 11440546 |
DOI | 10.1039/d0nj02700f |
英文摘要 | Ultrafiltration membranes have potential to solve the problems of water pollution and shortage. In order to obtain good solute selectivity, a dense layer is often introduced on the surface of the membrane. However, this approach fails to achieve maximum permeability and solute selectivity with minimum transport resistance. In this study, a metal-organic framework was prepared and blended with polyethersulfone as a modification additive to construct an ultra-thin dense layer structure that functions as a metal-organic framework modified polyethersulfone membrane. The thickness of the metal-organic framework modified polyethersulfone membrane dense layer decreased with the increase in the metal-organic framework content, and the thickness was reduced to 123 nm. Therefore, the resistance of the water transport on the dense layer was reduced, which increased the permeability of the polyethersulfone membrane. When the metal-organic framework content was 4 wt%, the water flux of the metal-organic framework-modified polyethersulfone membrane was 55.696 L m-2 h-1, and the high rejection ratio of bovine serum albumin and congo red were 98 and 97%, respectively. Thus, adjusting the thickness of the dense layer can improve the permeability of a metal-organic framework-modified polyethersulfone membrane and retain the solute selectivity, which gives the membrane the potential to be used for water treatment. This journal is © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique. |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | Royal Society of Chemistry |
WOS记录号 | WOS:000560486100027 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/115050] |
专题 | 电气工程与信息工程学院 材料科学与工程学院 |
作者单位 | State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China |
推荐引用方式 GB/T 7714 | Wang, Qi,Zhang, Shaohu,Ji, Xiwei,et al. High rejection performance ultrafiltration membrane with ultrathin dense layer fabricated by the movement and dissolution of metal-organic frameworks[J]. New Journal of Chemistry,2020,44(32):13745-13754. |
APA | Wang, Qi,Zhang, Shaohu,Ji, Xiwei,&Ran, Fen.(2020).High rejection performance ultrafiltration membrane with ultrathin dense layer fabricated by the movement and dissolution of metal-organic frameworks.New Journal of Chemistry,44(32),13745-13754. |
MLA | Wang, Qi,et al."High rejection performance ultrafiltration membrane with ultrathin dense layer fabricated by the movement and dissolution of metal-organic frameworks".New Journal of Chemistry 44.32(2020):13745-13754. |
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