期刊
DESALINATION
卷 316, 期 -, 页码 120-126出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2013.01.031
关键词
Jute cellulose nanowhiskers; PAN; Nanoparticles; Oil/water emulsion; Nanofibrous membrane; Water purification
资金
- National Basic Research Program of China (973 Program) [2011CB606103, 2012CB525005]
- National Natural Science Foundation of China [51173022, U1232116, 51273038]
- 111 Project [B07024]
- Shanghai Nano Special Projects [11nm0502900]
- Shanghai Municipal Education Commission [11ZZ59]
- Shanghai Education Commission [10SG32]
- Huo Yingdong Foundation [131070]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China
- Program for New Century Talents of the University in China
- Fundamental Research Funds for the Central Universities
Conventional ultrafiltration (UF) or nanofiltration (NF) filters for water treatments are based on porous membranes, where the torturous porosity usually results in a relatively low flux rate, typically manufactured by the phase immersion method. Electrospun (ES) nanofibrous membranes with a high flux rate evoked a considerable interest in the ultrafiltration or nanofiltration applications, because of their high porosity, good interconnectivity and high specific surface area. Herein, we developed a novel double layers of polyacrylonitrile (PAN) electrospun nanofibrous membranes (with an average fiber diameter of 173 nm) reinforced with TEMPO (2, 2, 6, 6-tetramethylpiperidine-1-oxyl radical) selectively oxidized jute cellulose nanowhiskers (with a diameter in the range of 3-10 nm). From FE-SEM images, the presence of evenly coated thin layer of cellulose nanowhiskers on the PAN ES nanofibers is evident. The versatile PAN/cellulose ES composite membranes with superior mechanical properties and high filtration efficiency of 7-40 nm particles would be particularly useful for applications in the domestic drinking water and industrial waste water treatment. (C) 2013 Elsevier B.V. All rights reserved.
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