Confined Growth of Cu-Doped CeO₂ Nanostructures in Boron-Rich Carbon Frameworks for Acetone Oxidation

The design and synthesis of low-cost, excellent catalytic activity catalysts is the key to catalytic oxidation of VOCs. Nanomaterials have attracted great interest in recent years. Here, a simple impregnation method was used to synthesize the Cu-doped CeO₂ nanostructure catalyst supported on a boron-rich carbon carrier and applied for the catalytic oxidation of acetone. After trace amounts of Cu were added to the single CeO₂ supported on boron-rich carbon catalyst, Cu-doped CeO₂ catalyst displayed better catalytic activity. Besides, it also has long-term stability and H₂O resistance. The influence of copper doping on the performance of the catalyst was studied by many characterization technologies. The result indicated that the introduction of Cu can further limit the growth of CeO₂ grains based on the limited growth of metal nanoparticles on the carrier, can make the amounts of Ce³⁺ and adsorb oxygen species increase, and can enhance the redox properties of CeO₂. Therefore, Cu-doped CeO₂ nanostructures in a boron-rich carbon catalyst have the potential for the removal of acetone.