Crafting carbon sphere-titania core–shell interfacial structure to achieve enhanced visible light photocatalysis

Anchoring titania on carbon sphere forms a core–shell structure (TiO2@CS) which shows high-performance visible light response photocatalysis. In order to further improve such photocatalysis, herein acrylic acid (AA) is employed to modify the surface chemistry of CS so as to craft the interfacial structure between CS and TiO2. It was found that AA addition leads to morphology change from smooth to rough surface or to aggregates of smaller primary...