Ultrasonic‐assisted Solution‐Phase Synthesis and Property Studies of Hierarchical Layer‐by‐Layer Mesoporous CeO2

Bulletin of the Korean Chemical Society

Pu Su Zhao¹  Xiu Mei Gao² 

[1] Jiangsu Key Laboratory for Chemistry of LowDimensional Materials Huaiyin Normal University Huaian 223300 China;School of Computer Science and Technology Huaiyin Normal University Huaian 223300 China

关键词: Mesoporous material;    Nanostructure;    CeO2;    Optical properties;    Catalytic properties;   

DOI  :  10.1002/bkcs.11398

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Hierarchical layer‐by‐layer quadrangle CeO2 was prepared through ultrasonic‐assisted solution‐phase synthesis strategy using cerium oxalate as the precursor. The as‐prepared mesoporous CeO2 displayed a surface area of 98.7 m2 g−1 and pore diameters of 2.0–10.0 nm. The high‐resolution TEM image revealed that the layer structures of the CeO2 were made of numerous nanocrystal particles with the crystallite size of about 13–15 nm. High energy and cavitation of ultrasonic wave assists cerium oxalate precursor in building the layer‐by‐layer quadrangle staking. UV–vis absorption spectrum showed that the direct allowed transition bandgap energy for the as‐prepared CeO2 was 2.91 eV. Moreover, the CeO2 exhibited good photocatalytic property for degrading Rhodamine B solution under UV radiation.

【 授权许可】

Unknown