نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه فیزیک، دانشکده علوم پایه، دانشگاه آزاد اسلامی اهواز، اهواز، ایران
2 گروه فیزیک، دانشکده علوم پایه، دانشگاه آزاد اسلامی رامهرمز،رامهرمز، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this research, hydrothermal method was used to made bismuth vanadate (BiVO4) thin layers.The X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectrometer (FTIR) and visible-ultraviolet absorption spectroscopy (UV-Vis) to study the structure Crystal, morphology, optical and photocatalytic properties of thin laters were used. The XRD pattern confirmed the formation of monoclinic pure phase for thin laters. EDS and FTIR analyzes showed that the thin laters do not contain any impurity elements. From FESEM image analysis, it was found that the average length of thin layers is 1.42 micrometers. Using UV-Vis analysis, an optical gap of 2.21 eV was obtained, which is in the visible light range. Investigating the photocatalytic activity of bismuth vanadate thin laters in the photodegradation of Congo red dye showed that this type of bismuth vanadate nanostructure with a monoclinic phase is a suitable choice for photocatalytic use and decomposition of organic matter with the help of sunlight.
کلیدواژهها [English]