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Novel high boron removal polyamide reverse osmosis membranes
Journal of Membrane Science ( IF 8.4 ) Pub Date : 2018-05-01 , DOI: 10.1016/j.memsci.2018.03.014
Shuhao Wang , Yong Zhou , Congjie Gao

Abstract Novel high boron removal thin film composite (TFC) membranes with semi-interpenetrating networks were fabricated by interfacial polymerization (IP) with m-phenylenediamine (MPD) and 1,3,5-benzenetricarbonyl trichloride (TMC). The polyisobutylene (PIB) was added to the organic phase prior to IP. The membranes were characterized by attenuated total reflectance Fourier transform infrared spectrometry (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM) and the zeta potential and contact angle analysis. The results of this study demonstrate that the novel TFC membrane exhibited superior separation performance at a relatively low concentration of PIB (0.30%, m/v). As the concentration of the interpenetrating PIB in the membrane increased, the membrane morphology changed distinctly. Furthermore, the permeability coefficient of boron decreased from 20.84 to 3.26, and the rejection of boron increased from 81.36% to 93.12%.

中文翻译:

新型高硼去除聚酰胺反渗透膜

摘要 通过界面聚合(IP)与间苯二胺(MPD)和1,3,5-苯三羰基三氯化物(TMC)制备了具有半互穿网络的新型高硼去除薄膜复合(TFC)膜。在 IP 之前将聚异丁烯 (PIB) 添加到有机相中。通过衰减全反射傅里叶变换红外光谱 (ATR-FTIR)、X 射线光电子能谱 (XPS)、场发射扫描电子显微镜 (FE-SEM)、原子力显微镜 (AFM) 和 zeta 电位和接触角度分析。这项研究的结果表明,新型 TFC 膜在相对较低的 PIB 浓度(0.30%,m/v)下表现出优异的分离性能。随着膜中互穿 PIB 的浓度增加,膜形态发生明显变化。此外,硼的渗透系数从20.84下降到3.26,硼的截留率从81.36%上升到93.12%。
更新日期:2018-05-01
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