摘要
采用水热法制备了可见光催化剂钼酸银,并利用X射线衍射、场发射扫描电镜、高分辨透射电镜等技术对制备的样品进行了表征。以罗丹明B(Rh B)为模拟污染物,对钼酸银的可见光光催化性能进行了分析。分析结果表明:当水热温度为120℃和140℃时,所得的钼酸银为Ag 6Mo 10 O 33,形貌分别为纳米棒和纳米线;水热温度为180℃时,所得的钼酸银为Ag 2Mo 2O 7,形貌为表面光滑的多面体。其中,具有纳米线状结构的Ag 6Mo 10 O 33具有最佳的可见光催化性能,在可见光下照射60 min,Rh B的降解率可达94.4%。
The silver molybdate photocatalysts were prepared by hydrothermal method. The prepared samples were characterized by X-ray diffraction,filed emission scanning electron microscopy and high resolution transmission electron microscope.The photocatalytic activities of the silver molybdate was determined by taking Rhodamine B( Rh B) in water as simulated pollutants under visible light irradiation. The results show that Ag6Mo10O3 with nanorod and nanowire structure is obtained at 120 ℃ and 140 ℃ respectively,while the Ag2Mo2O7 with polyhedron morphology is obtained when the hydrothermal temperature is raised to 180 ℃ .The Ag6Mo10O33 of nanowire structure possess the best photocatalytic activity. The degradation rate of Rh B is 94.4% in 60 min under visible light irradiation.
作者
李杰
逄显娟
和素娜
杨晖
LI Jie;PANG Xianjuan;HE Suna;YANG Hui(Medical School,Henan University of Science&Technology,Luoyang 471023,China;Chemical Engineering&Pharmaceutics School,Henan University of Science&Technology,Luoyang 471023,China)
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2020年第1期100-104,M0008,共6页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(1404504)
河南省基础与前沿研究计划基金项目(162300410054)
关键词
钼酸银
纳米线
可见光
光催化
罗丹明B
silver molybdate
nanowire
visible light
photocatalytic
rhodamine B
