Antibacterial Activity of Hydrophobic Composite Materials Containing a Visible-Light-Sensitive Photocatalyst

Figure 3

FT-IR spectrum of PTFE powder. A denotes CF₃ (1213 cm⁻¹) and CF₂ (1155 cm⁻¹, 639 cm⁻¹) adsorption peaks. B denotes the C=O (1800 cm⁻¹) absorption peak.