Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India.
Chemical Engineering Department, Lakehead University, Thunder Bay, ON, Canada.
Carbohydr Polym. 2018 Dec 15;202:219-226. doi: 10.1016/j.carbpol.2018.08.130. Epub 2018 Aug 30.
Filtration is a promising water treatment method to purify drinking water. To develop highly efficient drinking water filter paper, water-resistant cellulose foam paper with a high wet strength property was fabricated using diverse metal oxide (e.g., copper oxide (CuO), zinc oxide (ZnO), and silver oxide (AgO)) nanoparticles. These nanoparticles were synthesized using the hydrothermal reaction method. Their morphological structures were studied using a field emission scanning electron microscope (FESEM). The presence of coated nanoparticles on the cellulose foam filter was verified by energy dispersive X-ray spectroscopy (EDX) methods. The antibacterial performance of different types of modified cellulose foam filters was studied against E. coli, P. aeruginosa, B. subtilis, and B. cereus strains using the zone of inhibition test. The antibacterial profile of the cellulose foam filter impregnated with AgO nanoparticles, when tested against different types of bacteria, exhibited higher antibacterial activity than the cellulose foam filter impregnated with ZnO and CuO nanoparticles.
过滤是一种有前途的水处理方法，可用于净化饮用水。为了开发高效的饮用水过滤纸，使用各种金属氧化物（例如氧化铜 (CuO)、氧化锌 (ZnO) 和氧化银 (AgO)）纳米粒子制造了具有高湿强度的耐水纤维素泡沫纸。这些纳米粒子是通过水热反应法合成的。使用场发射扫描电子显微镜 (FESEM) 研究了它们的形态结构。通过能谱仪 (EDX) 方法验证了纤维素泡沫过滤器上涂覆纳米粒子的存在。使用抑菌圈试验研究了不同类型改性纤维素泡沫过滤器对大肠杆菌、铜绿假单胞菌、枯草芽孢杆菌和蜡样芽孢杆菌菌株的抗菌性能。当测试对不同类型的细菌时，浸渍有 AgO 纳米粒子的纤维素泡沫过滤器的抗菌特性显示出比浸渍有 ZnO 和 CuO 纳米粒子的纤维素泡沫过滤器更高的抗菌活性。
