Fig. 5

AFM images of (a) CNC, (b) CNC/TEOS/HTES, (c) CNC/TEOS/HTES/DMAPS, (d) CNC/TEOS/MTES, (e) CNC/TEOS/MTES/DMAPS, and (f) CNC/TEOS/HTES/DMAPS, where only (f) was obtained by the simultaneous modification method

AFM images of (a) CNC, (b) CNC/TEOS/HTES, (c) CNC/TEOS/HTES/DMAPS, (d) CNC/TEOS/MTES, (e) CNC/TEOS/MTES/DMAPS, and (f) CNC/TEOS/HTES/DMAPS, where only (f) was obtained by the simultaneous modification method