This study aims to produce silica from different material agriculture waste such as sugarcane bagasse, bamboo culm, bamboo
leaf, and corncob. The sol-gel method was applied in order to produce silica using 1M NaOH and 1M H2SO4. The sugarcane bagasse
ash contains the highest amount of silica, 92.5% followed with bamboo leaf, 62.72%; corncob, 27%; and bamboo culm, 20%.