Characteristics of Polyethersulfone Membranes Modified by Silika and Nanocellulose Extracted from Biomass as Additives

Abstract:

Polyethersulfone membranes were fabricated using non-solvent-induced phase separation (NIPS) with silica and nanocellulose additives extracted from rice husk ash and genjer (Limnocharis flava). N-methyl pyrrolidone served as the solvent. The study aimed to prepare membranes with diverse characteristics by incorporating various combinations of additives. Silica acted as a pore-forming agent, while nanocellulose enhanced membrane hydrophilicity. Characterization techniques included Fourier-transform infrared spectroscopy (FTIR) for functional group analysis, which revealed the presence of C-S, Si-O, and Si-O-Si vibrations in the membranes. Additionally, scanning electron microscopy (SEM) was employed to examine the surface and cross-sectional structure of the membranes. To assess membrane performance, a flux test was conducted. The membrane containing 2% nanocellulose and 1% silica exhibited the highest flux value of 21.37 L/m².h, corresponding to a permeability of 21.37 L/m².h.bar. Based on these results, the membrane with 2% nanocellulose and 1% silica is considered optimal due to its superior performance.

• Periodical: Materials Science Forum (Volume 1137)
• Pages: 3-10
• DOI: https://doi.org/10.4028/p-TNDa50
• Online since: December 2024
• Authors: Fathul Bashair, Muhamad Rasyid Rida, Nabila Fardina Idrus, Sri Aprilia*
• Keywords: Membrane Performance, Membrane Preparation, Nanocellulose, Polyethersulfone, Silica

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