Figure 2

The ratio of OD of SiO2 NPs compare to control sample during different wavelength (A) amorphous, (B) calcinated at 350 °C, (C) calcinated at 600 °C, (D) calcinated at 800 °C, and (E) calcinated at 1000 °C.

The ratio of OD of SiO2 NPs compare to control sample during different wavelength (A) amorphous, (B) calcinated at 350 °C, (C) calcinated at 600 °C, (D) calcinated at 800 °C, and (E) calcinated at 1000 °C.