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首页> 外文期刊>Journal of Applied Polymer Science >Antifouling performance enhancement of polyethersulfone ultrafiltration membrane through increasing charge-loading capacity over Prussian blue nanoparticles
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Antifouling performance enhancement of polyethersulfone ultrafiltration membrane through increasing charge-loading capacity over Prussian blue nanoparticles

机译：通过增加普鲁士蓝纳米粒子的电荷负荷能力，对聚醚砜超滤膜进行防污性能增强

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摘要

Prussian blue (PB), as a kind of regulator of charge-loading capacity, was first used to modify polyethersulfone (PES) membrane, and a novel PB/PES ultrafiltration membrane was prepared by non-solvent induced phase separation method. The physicochemical properties of PB-NPs and PB/PES membranes were analyzed by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, atomic force microscope, and zeta potential analysis. It was observed that PB-NPs were uniformly distributed in the PES matrix and a lotus-seedpod structure was formed inside the membrane. The addition of PB-NPs improved the charge-loading capacity of the PES membrane. The permeation and antifouling performance were investigated by filtering bovine serum albumin aqueous solution with different pH values. The results showed that the PB/PES membrane with 0.2-wt% PB-NPs content had the excellent antifouling performance and the flux recovery ratio value reached 90.73%. Moreover, the long-term stability test showed that PB-NPs did not fall off after continuous pure water filtration, indicating that PB/PES membrane had a good stability.
机译：普鲁士蓝（PB）作为一种充电容量调节剂，首先用于改变聚醚砜（PE）膜，通过非溶剂诱导的相分离方法制备新的PB / PE超滤膜。通过傅里叶变换红外光谱，X射线衍射，扫描电子显微镜，原子力显微镜和Zeta电位分析分析Pb-NPS和Pb / PES膜的物理化学性质。观察到Pb-nps均匀地分布在PE基质中，并且在膜内形成莲花籽结构。添加PB-NPS改善了PES膜的充电负载能力。通过用不同pH值过滤牛血清白蛋白水溶液来研究渗透和防污性能。结果表明，具有0.2-WT％PB-NPS含量的Pb / PES膜具有优异的防污性能，并且助焊剂回收率值达到90.73％。此外，长期稳定性试验表明，连续纯水过滤后Pb-NP不会脱落，表明Pb / PES膜具有良好的稳定性。

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