Bandara N. G. H. JMadhushantha K. G. SDe Silva C. RRatnaweera C. N2025-09-192025-09-192025-05https://dr.ichemc.ac.lk/handle/123456789/452Page 68 Abstract No: 2025_328T he sol-gel method is efficient and sustainable for synthesizing high-purity silica from rice husks (RH), commonly available agricultural waste. Silica is a widely used material in various commercial applications for absorbing and retaining moisture.enBurnt rice husk ashsol-gel methodindirect neutralizationsilicacrystallineArticle