Research Article

TiO2 Nanocatalysts Supported on a Hybrid Carbon-Covered Alumina Support: Comparison between Visible Light and UV Light Degradation of Rhodamine B

Table 1

Comparison of photodegradation efficiencies of Rhodamine B by free and CCA/TiO2 under UV and visible-light illumination.

Light source CatalystDegradation efficiency (%)Time taken (min)

Visible lightPhotolysis (no catalyst)4270
Visible lightUnsupported TiO220270
Visible lightCCA-supported TiO2100180
UV-visible lightUnsupported TiO2100270
UV-visible lightCCA-supported TiO2100240