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首页> 外文期刊>Journal of Applied Polymer Science >Poly(ethylene glycol) crosslinked sulfonated polysulfone composite membranes for forward osmosis
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Poly(ethylene glycol) crosslinked sulfonated polysulfone composite membranes for forward osmosis

机译：用于正向渗透的聚乙二醇交联磺化聚砜复合膜

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Forward osmosis (FO) membranes were prepared by a coating method with poly(ethylene glycol) crosslinked sulfonated polysulfone (SPSf) as a selective layer. The poly(ether sulfone)/SPSf substrate was prepared by phase inversion. The composite membranes were characterized with respect to membrane chemistry (by attenuated total reflectance/Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy), hydrophilicity (by static contact angle measurement), and surface morphology (by scanning electron microscopy and atomic force microscopy). The FO performance was also characterized. The effects of the crosslinker concentration on the hydrophilicity and FO performance were investigated. The crosslinked membrane exhibited a high hydrophilicity with a lowest contact angle of 15.5 degrees. Under FO tests, the membranes achieved a higher water flux of 15.2 L m(-2) h(-1) when used against deionized water as the feed solution and a 2 mol/L sodium chloride (NaCl) solution as the the draw solution. The membranes achieved a magnesium sulfate rejection of 96% and an NaCl rejection of 55% when used against a 1 g/L inorganic salt solution as the feed solution and a 2 mol/L glucose solution as the draw solution. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43941.
机译：用聚乙二醇交联的磺化聚砜（SPSf）作为选择层，通过涂覆法制备了正渗透膜。通过相转化制备聚醚砜/ SPSf底物。复合膜的膜化学特性（通过衰减全反射/傅立叶变换红外光谱和X射线光电子能谱），亲水性（通过静态接触角测量）和表面形态（通过扫描电子显微镜和原子力显微镜）得以表征。 FO性能也得到了表征。研究了交联剂浓度对亲水性和FO性能的影响。交联的膜表现出高亲水性，最低接触角为15.5度。在FO测试下，当使用去离子水作为进料溶液和使用2 mol / L氯化钠（NaCl）溶液作为汲取溶液时，膜获得了15.2 L m（-2）h（-1）的更高水通量。当使用1 g / L的无机盐溶液作为进料溶液和2 mol / L的葡萄糖溶液作为汲取溶液时，该膜的硫酸镁截留率达96％，NaCl截留率达55％。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43941。

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