Скачать с ютуб Radionuclide Removal through PEI Spray-Coated Positively Charged Polyamide RO Membranes в хорошем качестве

Radionuclide Removal through PEI Spray-Coated Positively Charged Polyamide RO Membranes

Muhammad ‘Adli Nor Azman presents Radionuclide Removal through PEI Spray-Coated Positively Charged Polyamide RO Membranes Even though reverse osmosis (RO) has promising prospects in treating radionuclide wastewater, the current aromatic polyamide (PA) thin film composite (TFC) RO membrane is not effectively rejecting radionuclide ions. In this research, different amounts of polyethylenimine (PEI) were used to create positive charges on the surface of the PA TFC membrane by using a simple spray coating method to address this problem. By improving the spray coating conditions, the PEI layer could add a high positive surface charge to the membrane without majorly altering the surface structure and morphology, as suggested by morphological and surface charge analyses. The 0.1PEI-TFC membrane, which was spray coated with PEI at a concentration of 0.1 mg/ml, showed increased rejection of radionuclides (Cs+, Cd2+, and Cr3+) by 13.08%, 17.39%, and 5.77% compared to the original membrane. Additionally, the outcomes from tests on long-term stability and BSA fouling showed that the 0.1PEI-TFC membrane demonstrated improved stability for 24 hours and potential antifouling characteristics. The effectiveness of PEI spray coating in improving membrane performance for removing radionuclide ions from water bodies is confirmed by the physical features and separation abilities of the modified membrane.