Preparation and photocatalytic activity of HC/BiOBr/Bi2WO6 microspheres

被引：3
|
作者：
Liu, Xinyu [1 ]
Li, Heruo [1 ]
Gao, Shuang [1 ]
Jing, Xue [1 ]
Ren, Yulan [1 ,2 ]
机构：
[1] Mudanjiang Normal Univ, Coll Chem & Chem Engn, Mudanjiang 157011, Heilongjiang, Peoples R China
[2] Heilongjiang Prov Key Lab Photoelect Funct Mat, Mudanjiang 157011, Heilongjiang, Peoples R China
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2022年 / 142卷
关键词：
Solvothermal; Composite; BiOBr; Bi2WO6; Photocatalyst; COMPOSITES;
D O I：
10.1016/j.inoche.2022.109695
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
HC/BiOBr/Bi2WO6 microspheres are synthesized by solvothermal method. The crystal structure, morphology and optical properties of the photocatalyst are investigated by XRD, SEM, BET, UV-Vis DRS and PL. SEM shows that HC/BiOBr/Bi2WO6 is composed of a spherical structure made of stacked nanosheets. The photocatalytic activity of HC/BiOBr/Bi2WO6 microspheres can be evaluated by photodegradation of rhodamine B (RhB), methyl orange (MO) and methylene blue (MB) under visible light irradiation. The results show that the photocatalytic activity of HC/BiOBr/Bi2WO6 is significantly higher than that of single phase BiOBr or Bi2WO6. In addition, HC/BiOBr/Bi2WO6 photocatalyst also has good photostability and recyclability. After irradiation with 7 W-LED for 180 min, the photodegradation efficiency of HC/BiOBr/Bi2WO6 microspheres to 10 mg/L RhB is 98.91%, which is still 70.47% after 4 cycles of degradation. HC/BiOBr/Bi2WO6 microspheres have excellent photocatalytic activity, which is mainly attributed to the improvement of light absorption capacity and the reduction of electron hole pair recombination rate.
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页数：8
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