Preparation and enhanced visible-light photocatalytic activity of Pancake Rocks-like WO3−x/C nanocomposite

Abstract

The Pancake Rocks-like WO_3−x/C nanocomposite was synthesized via the in situ solid state thermolysis of dedocylamine–intercalated H₂W₂O₇ (H₂W₂O₇/DDA), leading to the in situ production of interlayered carbon. The Pancake Rocks-like WO_3−x/C nanocomposite has a high conduction band position compared to the pure WO₃, which has an important influence on the photocatalytic process. Furthermore, the interlayered carbon acts as an electron channel that can transfer the photogenerated electrons from WO_3−x. The visible-light response of the Pancake Rocks-like WO_3−x/C nanocomposite was enhanced through the intercalation of carbon.