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首页> 外文期刊>Journal of Applied Polymer Science >Improving antifouling performance for the harvesting of Scenedesmus acuminatus using Fe2O3 nanoparticles incorporated PVC nanocomposite membranes
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Improving antifouling performance for the harvesting of Scenedesmus acuminatus using Fe2O3 nanoparticles incorporated PVC nanocomposite membranes

机译：使用Fe2O3纳米颗粒掺入PVC纳米复合膜收获的防污性能

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Membrane filtration provided a potential solution to get high quality microalgae biomass and recyclable medium. However, the fouling of membrane by microalgae cells and organic matter greatly affects membrane harvesting efficiency. In this study, membrane performance was tested in terms of flux declining and backwashing recovery for microalgal harvesting. Compared with the unmodified poly(vinyl chloride) (PVC) membrane, the membrane with 1.0% Fe2O3 incorporation had a 66% increase in average flux, reaching 138 L m(-) h(-1). Foulants on the membrane surface were characterized using attenuated total reflection-Fourier transform infrared (ATR-FTIR) and confocal laser scanning microscope (CLSM), as well as sodium hydroxide extraction followed by total organic carbon (TOC) quantification and fluorescence excitation-emission matrix (FEEM) identification of organic components. FEEM and TOC analysis of the extracted foulants revealed that the surface of 1.0% Fe2O3 incorporated membrane had less fouling than the unmodified PVC membrane, which may be attributed to its hydrophilicity after Fe2O3 incorporation. CLSM analysis and ATR-FTIR analysis of the fouled membrane surface further revealed that the protein substance on the 1.0% Fe2O3 incorporated PVC membrane was lower than those in the unmodified membrane, which further confirmed the enhanced antifouling performance of the 1.0% Fe2O3 incorporated PVC membrane. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47685.
机译：膜过滤提供了一个潜在的解决方案，以获得高品质的微藻生物质和可回收介质。然而，膜的微藻细胞和有机物结垢极大地影响膜收获效率。在这项研究中，膜性能的通量下降，反冲洗的微藻收获复苏方面进行了测试。与未改性的聚（氯乙烯）（PVC）膜相比，具有1.0％的Fe2O3掺入膜具有在平均通量增加了66％，达到138 L M（ - ）H（-1）。使用衰减全反射 - 傅立叶变换红外光谱（ATR-FTIR）和共聚焦激光扫描显微镜（CLSM），以及氢氧化钠萃取，随后有机碳总量（TOC）的定量和荧光激发 - 发射矩阵在膜表面上的污垢进行了表征（FEEM）识别的有机成分。 FEEM和所提取的污物的TOC分析显示，1.0％的Fe2O3的表面并入膜比未改性的PVC膜，其可以归因于掺入的Fe2O3之后其亲水性就更少的结垢。 CLSM分析和污染膜表面的ATR-FTIR分析进一步揭示了在1.0％的Fe2O3并入PVC膜上的蛋白物质是比在未修饰的膜，其进一步证实的1.0％提高防污性能较低的Fe2O3并入PVC膜。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019年，136，47685。

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