Figure 2
From: Diatom-inspired silicification process for development of green flexible silica composite aerogels
(a) UV–Vis spectrum of SF and oxidized SFO. (b) ATR-FTIR spectra of SFO, SFO:PEI and SFO:PEI:SiO2-0.5–7. (c) Chemical structure of silicified SFO:PEI composite.
