Fig. 3
TEM images of FeOOH&mSiO2 Janus nanoparticles synthesized in different reaction conditions. (A) 2.7 mM CTAB; (B) 6.9 mM CTAB; (C) 9.6 mM CTAB; (D) 13.7 mM CTAB; (E) 20.6 mM CTAB; (F) 27.4 mM CTAB; (G) 3% (v/v) NH3·H2O; (H) 4% (v/v) NH3·H2O; (I) 8% (v/v) NH3·H2O. All conditions are fixed as experiment section in Supporting Information except for the altered one. Scale bar: 200 nm