Abstract
The BiOI/Bi2O2CO3 heterostructural photocatalysts were synthesized by a facile ion-exchange route between Bi2O2CO3 precursor and KI with ultrasonic reaction. The as-prepared BiOI/Bi2O2CO3 heterostructures were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), UV–Vis diffuse reflectance absorption spectra (DRS), fourier transform infrared spectroscopy (FTIR) and photoluminescence spectra (PL). The BiOI/Bi2O2CO3 heterostructures exhibited much higher photocatalytic activities than those of single Bi2O2CO3 and BiOI for the degradation of Rhodamine B (RhB) under visible light irradiation. The significantly enhanced photocatalytic activity of BiOI/Bi2O2CO3 heterostructures could be attributed to the formation of p–n heterojunction between p-type BiOI and n-type Bi2O2CO3, which effectively separated the photogenerated electron–hole pairs. The possible mechanism of BiOI/Bi2O2CO3 heterostructures as photocatalysts was proposed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Materials Science: Materials in Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
