Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamilnadu, India.
Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamilnadu, India.
Mater Sci Eng C Mater Biol Appl. 2019 Jan 1;94:258-269. doi: 10.1016/j.msec.2018.09.010. Epub 2018 Sep 5.
Biofouling is a severe problem in membrane systems which hampers their broad applications because it requires regular chemical cleaning, reduces membrane life, and also decreases product quality. In this study, nanocurcumin (CCM) was prepared by sonication-assisted wet-milling technique and then incorporated in polyethersulfone (PES) membrane to enhance the anti-biofouling property. TEM analysis of the curcumin showed that nanomaterials are spherical. FTIR studies confirmed that the presence of CCM nanomaterial in PES membrane. Zone inhibition studies revealed that PES/CCM nanocomposite membranes exhibited the better anti-biofouling propensity against Escherichia coli and Pseudomonas aeruginosa. Static adhesion studies also showed that PES/CCM nanocomposite membranes prevented the attachment and proliferation of E. coli cells. Also, PES/2 wt% CCM nanocomposite membrane had a high thermal degradation temperature of 575.62 °C and tensile strength of 1.87 MPa. Moreover, addition of CCM nanomaterial in casting solution altered the membrane morphology and hydrophilicity. Further, pure water flux was increased up to 64.48 L·m·h for PES/2 wt% CCM nanocomposite membrane. Filtration of raw sewage treatment plant effluent was also carried out. The incorporation of curcumin in membranes was effectively improved the antifouling tendency without compromised affecting the chemical oxygen demand reduction. This study highlights the anti-biofouling potential of CCM incorporated PES nanocomposite membranes, which could be utilized for various filtration applications.
生物污染是膜系统中一个严重的问题，因为它需要定期进行化学清洗，这会降低膜的寿命，也会降低产品质量，从而阻碍了膜系统的广泛应用。在这项研究中，通过超声辅助湿磨技术制备了纳米姜黄素（CCM），并将其掺入聚醚砜（PES）膜中，以提高其抗生物污染性能。姜黄素的 TEM 分析表明，纳米材料呈球形。FTIR 研究证实了 CCM 纳米材料在 PES 膜中的存在。抑菌圈研究表明，PES/CCM 纳米复合材料膜对大肠杆菌和铜绿假单胞菌表现出更好的抗生物污染倾向。静态粘附研究也表明，PES/CCM 纳米复合材料膜阻止了大肠杆菌细胞的附着和增殖。此外，PES/2wt%CCM 纳米复合材料膜的热降解温度高达 575.62°C，拉伸强度为 1.87MPa。此外，CCM 纳米材料在铸膜液中的添加改变了膜的形态和亲水性。进一步，PES/2wt%CCM 纳米复合材料膜的纯水通量增加了 64.48L·m·h-1。还进行了原污水处理厂出水的过滤。姜黄素在膜中的掺入有效地提高了抗污染倾向，而不会影响化学需氧量的降低。这项研究突出了 CCM 掺入 PES 纳米复合材料膜的抗生物污染潜力，可用于各种过滤应用。
