Effect of Varying Amount of Polyethylene Glycol (PEG-600) and 3-Aminopropyltriethoxysilane on the Properties of Chitosan based Reverse Osmosis Membranes

International Journal of Molecular Sciences

Muhammad Asim Raza¹  Sang Hyun Park¹  Bilal Haider²  Arsalan Raza³  Anum Kayani³  Tajamal Hussain³  Muhammad Sarfraz Akram⁴  Aneela Sabir⁵  Atif Islam⁵  Rafi Ullah Khan⁵ 

[1] Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup 56212, Korea;Institute of Chemical Engineering and Technology, University of the Punjab, Lahore 54590, Pakistan;Institute of Chemistry, University of the Punjab, Lahore 54590, Pakistan;Institute of Energy and Environmental Engineering, University of the Punjab, Lahore 54590, Pakistan;Institute of Polymer and Textile Engineering, University of the Punjab, Lahore 54590, Pakistan;

关键词: films;    hydrophilicity;    surface morphology;    cross-linking;    permeate flux;   

DOI  :  10.3390/ijms22052290

来源: DOAJ

【 摘 要 】

Chitosan and polyethylene glycol (PEG-600) membranes were synthesized and crosslinked with 3-aminopropyltriethoxysilane (APTES). The main purpose of this research work is to synthesize RO membranes which can be used to provide desalinated water for drinking, industrial and agricultural purposes. Hydrogen bonding between chitosan and PEG was confirmed by displacement of the hydroxyl absorption peak at 3237 cm⁻¹ in pure chitosan to lower values in crosslinked membranes by using FTIR. Dynamic mechanical analysis revealed that PEG lowers Tg of the modified membranes vs. pure chitosan from 128.5 °C in control to 120 °C in CS-PEG5. SEM results highlighted porous and anisotropic structure of crosslinked membranes. As the amount of PEG was increased, hydrophilicity of membranes was increased and water absorption increased up to a maximum of 67.34%. Permeation data showed that flux and salt rejection value of the modified membranes was increased up to a maximum of 80% and 40.4%, respectively. Modified films have antibacterial properties against Escherichia coli as compared to control membranes.

【 授权许可】

Unknown