Breaking through tradeoff of Polysulfone ultrafiltration membranes by zeolite 4A

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2014专题

	Breaking through tradeoff of Polysulfone ultrafiltration membranes by zeolite 4A
	Liu, Fu ; Ma, Bi-Rong ; Zhou, Dong ; Xiang, Yan-hui ; Xue, Li-xin
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2014
卷号	186 页码:113
中文摘要	Pressure-driven ultrafiltration by porous membrane often encountered a tradeoff between permeability and selectivity due to the transport mechanism based on pore dimension. This paper aims to break through the tradeoff of Polysulfone (PSI) ultrafiltration membranes by incorporating specific zeolite 4A. The influences of particle size, micro-channel dimension, zeta potential and content of zeolite 4A on tradeoff were discussed. The morphological evolution investigated by Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM) showed that zeolites 4A embedded in the selective layer within the depth of less than 1 mu m increased the surface roughness and improved the hydrophilicity. Thermal and mechanical stability were also evaluated by thermal gravimetric analysis (TGA) and tensile testing respectively. The filtration experiments showed that both pure water flux and rejection were simultaneously improved due to the morphology regulation, abundant nano-scale water flow channels, negatively charged membrane surfaces and precise embedding position of zeolite 4A in the membrane selective layer. (C) 2013 Elsevier Inc. All rights reserved.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11923]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Liu, Fu,Ma, Bi-Rong,Zhou, Dong,et al. Breaking through tradeoff of Polysulfone ultrafiltration membranes by zeolite 4A[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2014,186:113.
APA	Liu, Fu,Ma, Bi-Rong,Zhou, Dong,Xiang, Yan-hui,&Xue, Li-xin.(2014).Breaking through tradeoff of Polysulfone ultrafiltration membranes by zeolite 4A.MICROPOROUS AND MESOPOROUS MATERIALS,186,113.
MLA	Liu, Fu,et al."Breaking through tradeoff of Polysulfone ultrafiltration membranes by zeolite 4A".MICROPOROUS AND MESOPOROUS MATERIALS 186(2014):113.