Alam Javed, Shukla Arun Kumar, Ansari Mohammad Azam, Ali Fekri Abdulraqeb Ahmed, Alhoshan Mansour
King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia.
Department of Epidemic Disease Research, Institute of Research and Medical Consultation, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
Membranes (Basel). 2020 Dec 29;11(1):25. doi: 10.3390/membranes11010025.
We fabricated a nanofiltration membrane consisting of a polyaniline (PANI) film on a polyphenylsulfone (PPSU) substrate membrane. The PANI film acted as a potent separation enhancer and antimicrobial coating. The membrane was analyzed via scanning electron microscopy and atomic force microscopy to examine its morphology, topography, contact angle, and zeta potential. We aimed to investigate the impact of the PANI film on the surface properties of the membrane. Membrane performance was then evaluated in terms of water permeation and rejection of methylene blue (MB), an organic dye. Coating the PPSU membrane with a PANI film imparted significant advantages, including finely tuned nanometer-scale membrane pores and tailored surface properties, including increased hydrophilicity and zeta potential. The PANI film also significantly enhanced separation of the MB dye. The PANI-coated membrane rejected over 90% of MB with little compromise in membrane permeability. The PANI film also enhanced the antimicrobial activity of the membrane. The bacteriostasis ( ) values of PANI-coated PPSU membranes after six and sixteen hours of incubation with were 63.5% and 95.2%, respectively. The values of PANI-coated PPSU membranes after six and sixteen hours of incubation with were 70.6% and 88.0%, respectively.
我们制备了一种纳滤膜，该膜由聚苯砜（PPSU）基底膜上的聚苯胺（PANI）薄膜组成。PANI薄膜起到了高效的分离增强剂和抗菌涂层的作用。通过扫描电子显微镜和原子力显微镜对该膜进行分析，以研究其形态、表面形貌、接触角和zeta电位。我们旨在研究PANI薄膜对膜表面性质的影响。然后根据水渗透和对有机染料亚甲基蓝（MB）的截留率来评估膜的性能。用PANI薄膜涂覆PPSU膜具有显著优势，包括精确调整纳米级的膜孔以及定制表面性质，如增加亲水性和zeta电位。PANI薄膜还显著增强了对MB染料的分离效果。PANI涂覆的膜对MB的截留率超过90%，而膜的渗透性几乎没有降低。PANI薄膜还增强了膜的抗菌活性。PANI涂覆的PPSU膜在与[具体细菌名称未给出]孵育6小时和16小时后的抑菌率分别为63.5%和95.2%。PANI涂覆的PPSU膜在与[具体细菌名称未给出]孵育6小时和16小时后的抑菌率分别为70.6%和88.0%。
