Radical Polymerization by Heterogeneous Ceria Nanocatalysts.

Heterogeneous catalysts for radical polymerization are desired due to advantageous recyclability, which facilitates further purification and various applications. Herein, colloidal ceria (CeO) nanocrystals function as an efficient heterogeneous catalyst driving radical polymerization of methyl methacrylate (MMA). Enrichment of Ce is observed on the CeO surface upon polymerization, revealing a surface-mediated redox mechanism underpinned by the reversible formation of oxygen defects.

Ultrathin Layered Structure and Oxygen Vacancies Mediated Efficient Charge Separation toward High Photocatalytic Activity in BiOIO Nanosheets.

Previous bismuth-based photocatalysts usually employ a strong acid solution (e.g., HNO solution) to obtain an ultrathin structure toward high photocatalytic activity.