The photocatalysis of the semiconductive materials convert the photon energy to chemical energy.

半导体光催效应可将光能转为学能。

A series of toxic products were produced after photocatalysis on ethanol, such as acetaldehyde, ethyl formate, ethyl acetate, diethoxymethane, 1,1-diethoxyethane.

如醇反应产物包括，酸酯，酸甲酯，缩等一系列有害物质。