Synthesis of Nanosilica form Sugarcane Bagasse Using the Sol-Gel Method for Enhanced Nano fluid Applications

Abstract

 Nanomaterials have gained immense popularity in advanced materials research due to their unique properties and potential applications in various fields. This study synthesizes nanofluids from ash-derived sugarcane bagasse nanosilica and evaluates their potential for practical and industrial applications. Using a sol-gel method and a two-step ultrasonication process, the nanofluids were characterized for particle size, agglomeration, stability, and viscosity. SEM images revealed irregularly shaped nanosilica particles with rough surfaces, indicating high surface areas and a tendency to agglomerate. UV-Vis spectroscopy showed that absorbance values decreased over time, indicating particle sedimentation or aggregation, with lower concentrations (0.05 wt.% and 0.10 wt.%) demonstrating better stability. Zeta potential measurements confirmed higher stability at lower concentrations due to stronger electrostatic repulsion, while viscosity measurements indicated effective dispersion without excessive thickening. Additionally, pH measurements revealed its critical role in maintaining the stability and dispersion of nanofluids, with optimal pH levels contributing to improved electrostatic interactions and reduced agglomeration. These findings suggest that lower concentrations of nanosilica provide better stability and dispersion in nanofluids, offering valuable insights for future formulation and application strategies in various industries.