材料科学
光催化
催化作用
铈
纳米颗粒
氧气
空位缺陷
金属
化学工程
晶体结构
无机化学
纳米技术
核化学
结晶学
冶金
有机化学
化学
工程类
作者
Yuxin Li,Qing Wang,Guolang Zhou,Push Zhao,Rongqing Li,Guangxiu Mao,Lili Zhang,Feng Li,Jingzhou Yin
标识
DOI:10.1016/j.matlet.2021.131075
摘要
A novel sacrificial metal method is adopted to synthesize CeO2 nanoparticles with abundant oxygen vacancies and efficient photocatalytic activity. The CeO2 nanoparticles (U-Mg-CeO2) are obtained just with sacrificial Mg powder in cerium salt solutions under ultrasonic treatment. The U-Mg-CeO2 exhibits single crystal structure and the diameter is about 10 nm. The ESR and other characterization results show that U-Mg-CeO2 contains abundant oxygen vacancies on the surface. The U-Mg-CeO2 photodegrade tetracycline (TC) under sun-light reaching 75 % with the amount of catalyst 0.25 g/L. The novel synthesis method, higher surface area, oxygen vacancy defects are useful to improve the catalytic performance. This novel method may shed light on synthesis of other highly active catalysts.
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