%0 Journal Article %T Performance of Nanocomposite Polysulfone-Polyaniline Substrates for Enhanced Thin Film Membranes %J Egyptian Journal of Chemistry %I National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT %Z 0449-2285 %A Elnaggar, Elsayed M. %A Ali, Mohamed E.A. %A Abo-Elfadl, Mostafa M. %A Abdellah, Salah F. %A Gad, Ehab S. %A Sammak, Amr A. %A El-kady, Gamal M. %D 2022 %\ 10/01/2022 %V 65 %N 10 %P 543-550 %! Performance of Nanocomposite Polysulfone-Polyaniline Substrates for Enhanced Thin Film Membranes %K Thin film composite membranes %K Polyaniline %K polysulfone %K Fouling %K Chlorination, sodium lauryl sulfate and Reverse osmosis membrane %R 10.21608/ejchem.2022.60278.3290 %X Membranes fouling and their degradation using free chlorine are the most common challenges in the desalination process. A blend nano-composite polysulfone /polyaniline were prepared as a substrate for the active polyamide layer. In this work, nano polyaniline emeraldine salt was prepared using a simple chemical oxidative polymerization method. It was added to the polysulfone (PS) substrate layer in the presence of sodium lauryl sulfate as a hydrophilic agent to enhance reverse osmosis properties of the thin film composite membrane. Unmodified and modified polyaniline nano-particles membranes were characterized using XRD, EDX, FT-IR, SEM, particle size distribution and contact angle. The membranes performance was evaluated in terms of water flux and salt rejection using a cross-flow filtration unit. The results showed that the nano-composite membrane had much better water permeability (66 L/m²/h) compared to the control membrane (57 L/m² /h) without significant change in the percentage of salt rejection. The resistance of membranes to bio-fouling and chlorine degradation was evaluated using bovine serum albumin (BSA) as fouling model and sodium hypochlorite, respectively. The modified membrane was more resistant to bio-fouling and chlorine attack because of the strong electrostatic repulsion between poly-aniline PANI and BSA. The prepared polysulfone -polyaniline nano-composite substrate has been enhanced the performance of thin film composite as a reverse osmosis membrane. %U https://ejchem.journals.ekb.eg/article_215491_83a210127fbdc27264190db26352d750.pdf