文献类型：期刊文献

英文题名：Controlling the morphology and performance of FO membrane via adjusting the atmosphere humidity during casting procedure

作者：Zuo, Hao-Ran[1];Cao, Gui-Ping[1];Wang, Meng[1];Zhang, Huan-Huan[1];Song, Chen-Chen[1];Fang, Xu[1];Wang, Tao[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, UNILAB, Shanghai 200237, Peoples R China

年份：2018

卷号：433

起止页码：945

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20174304311338);WOS:【SCI-EXPANDED(收录号:WOS:000418883800118)】；

基金：The research was supported by the Key Innovation Program of Shanghai Municipal Education Commission (14ZZ062), National University Student Innovation Program (121025104) and USRP (20130363).

语种：英文

外文关键词：Forward osmosis; Membrane; Humidity; Morphology

摘要：Forward osmosis (FO) has received great interest for its considerable potential in a wide range of fields. In this work, the morphology and performance of FO membrane were regulated by adjusting the atmosphere humidity (H-C) of casting procedure. The polysulfone support layer was casted under various atmosphere humidity levels ranging from 40% to 80%. By multi-techniques such as SEM, AFM, and XPS, it was proved that the atmosphere humidity had modified the surface morphology and thickness of the skin layer in support layer, which contributed up to 90% of the structure parameter, resulting in distinct morphology, thickness, and cross-linking degree of active layer. The active layer with sparse bead-like wrinkles on the smooth surface of support layer casted at H-C = 65% showed the highest water permeability [26.9 (L/m(2) h MPa)] and considerable low salt permeability [0.0390 (L/m(2) h)]. It was found that the water flux of FO-65 was 27% and 46% higher than that of FO-80 in AL-DS and AL-FS mode, respectively, and the salt rejection was as high as 98%. Our work highlighted the importance of considering the effect of atmosphere humidity during casting when design an FO membrane for appropriate performance. (C) 2017 Elsevier B.V. All rights reserved.