Surface structure of the sample, shape and particle size were taken on scanning electron microscopy (SEM) for three-dimensional appearance. The powder sample was sprinkled on a carbon sticky tab of aluminum specimen mount and coated with a nanometer-thick layer of gold (Au) using a sputter coater before being examined and photographs SEMs. Phillips XL30 SEM with 15-20 kV energy) and the Edward Scancoat six sputter coater (Edwards Laboratories, Milpitas, CA) for sputtering Au were used to determine synthesized silica.