Nano-sized BiFeO3 Coupled with UiO-66 for efficient photocatalytic degradation of binary dye mixture under visible-light irradiation
Paper ID : 1058-ICNS
Samin Bargozideh *, Sahar Shekarabi, Hossein Daneshgar, Mahboubeh Tasviri
Department of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, 19839-63113, Iran.
Recently, metal-organic frameworks (MOFs) have been arousing a great interest as a suitable material to develop in the combine photocatalysts. Specifically, the superior thermal stability and unique physicochemical properties of UiO-66, a zirconium-based MOF, makes it a promising candidate for the photocatalysis process. This report provides the first attempt to incorporate UiO-66 with BiFeO3 by a one-pot solvothermal method for the development of visible-light photocatalysts. The UiO-66/BiFeO3 nanocomposite samples, pure UiO-66 and BiFeO3 were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and diffuse reflectance spectroscopy (DRS). The results reveal that UiO-66/BiFeO3 nanocomposite has better photocatalytic behavior for degradation of Rhodamine B (RhB), Methyl Orange (MO) and binary dye (a mixture of RhB and MO) under the visible-light irradiation compared to bare MOF and pure BiFeO3. The improvement of photocatalytic performance should be attributed not only to the high surface area of UiO-66 which increase the contact area with dye but also to the construction of a junction between UiO-66 and BiFeO3 which increase the availability of charge careers (electrons and holes). This composing strategy of UiO-66/BiFeO3 nanocomposite may bring new insight into the designing of highly efficient photocatalysts.
UiO-66/BiFeO3; visible-light-driven photocatalyst; wastewater purification; Rhodamine B; Methyl Orange.
Status : Abstract Accepted (Poster Presentation)