Figure 2

SEM images of the resulting SWCNT@ TiO2 core–shell particles (a) based on chemically-treated SWCNTs and (b) based on physical-treated SWCNTs without BA treatment. SEM images of the SWCNT@ TiO2 core–shell particles based on physically-treated SWCNTs with different molar ratios BA of (c) mBA,10 and (d) mBA,30. (e) XRD spectrum of the ST-CSW before and after the heat treatment at 500 °C.