Figure 3From: Synthesis of silica nanoparticles from Vietnamese rice husk by sol–gel methodTEM micrographs of silica nanoparticles obtained from CTAB. 0.5 (a), 1.0 (b), 1.5 (c), 2.0 (d), 2.5 (e), and 3.0 wt.% (f).Back to article page