Photoreduction of Carbon Dioxide to Formic Acid, Formaldehyde, Methanol, Acetaldehyde and Ethanol Using Aqueous Suspensions of Strontium Titanate with Transition Metal Additives

Abstract

The photoassisted reduction or aqueous carbon dioxide was carried out in the presence of suspensions of powdered strontium titanate, surface treated with various transition metal oxide additives, using either high-pressure mercury lamps or sunlight as the energy source. The organic products observed included formic acid, formaldehyde, methanol, acetaldehyde and ethanol.