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SILICA-RICH WASTE TO SUSTAINABLE NANOFIBERS VIA ELECTROSPINNING: A SYSTEMATIC REVIEW Lumbanraja, Louis; Syafriadi, Syafriadi
International Journal of Multidisciplinary Research and Literature Vol. 4 No. 5 (2025): INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND LITERATURE
Publisher : Yayasan Education and Social Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53067/ijomral.v4i5.368

Abstract

Often overlooked in conventional waste management systems, silica-rich waste holds untapped potential as a sustainable precursor for advanced nanomaterials. This systematic review critically examines how diverse industrial and agricultural silica-rich residues such as rice husk ash, glass waste, and geothermal sludge can be valorized into functional nanofibers via electrospinning. Applying the PRISMA framework, 150 peer-reviewed studies (2014–2024) were synthesized to map current research on waste selection, silica extraction methods, electrospinning parameters, and end-use performance. The review highlights that tailored purification routes can yield high-purity silica suitable for stable, defect-free nanofibers. Electrospinning success hinges on a fine-tuned interplay of solution properties, operational settings, and ambient conditions. Resulting nanofibers demonstrate outstanding performance in air/water filtration, biomedical scaffolding, and energy storage systems. However, raw material variability, process reproducibility, and scale-up potential persist. By integrating material science with circular economy principles, this work positions waste-derived nanofibers as a strategic pathway toward greener, high-value applications in resource-constrained settings.