Preparation of phenol-formaldehyde resin-coupled TiO2 and study of photocatalytic activity during phenol degradation under sunlight

TEM image of 4% PF/TiO2 (200 °C, 2 h) sample showing vermicular structures and highly uniform dispersion. The catalyst particles were highly uniform with a particle size of about 5.2 nm, and similar results were obtained by XRD analysis.262