光催化
材料科学
异质结
X射线光电子能谱
无定形固体
光致发光
四方晶系
退火(玻璃)
化学工程
甲基橙
光降解
可见光谱
纳米技术
催化作用
光电子学
晶体结构
复合材料
化学
结晶学
有机化学
工程类
作者
Fang Chen,Ting Zhang,Qiong Liu,Pengran Guo,Lei Yan,Yi Wang,Fuxian Wang
出处
期刊:Nanomaterials
[MDPI AG]
日期:2020-08-01
卷期号:10 (8): 1514-1514
被引量:7
摘要
Tetragonal CuBi2O4/amorphous BiFeO3 (T-CBO/A-BFO) composites are prepared via a one-step solvothermal method at mild conditions. The T-CBO/A-BFO composites show expanded visible light absorption, suppressed charge recombination, and consequently improved photocatalytic activity than T-CBO or A-BFO alone. The T-CBO/A-BFO with an optimal T-CBO to A-BFO ratio of 1:1 demonstrates the lowest photoluminescence signal and highest photocatalytic activity. It shows a removal rate of 78.3% for the photodegradation of methylene orange under visible light irradiation for 1 h. XPS test after the cycle test revealed the reduction of Bi3+ during the photocatalytic reaction. Moreover, the as prepared T-CBO/A-BFO show fundamentally higher photocatalytic activity than their calcinated counterparts. The one-step synthesis is completed within 30 min and does not require post annealing process, which may be easily applied for the fast and cost-effective preparation of photoactive metal oxide heterojunctions.
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