Abstract
The serious problems of environmental pollution and energy shortage have pushed the green economy photocatalysis technology to the forefront of research. Therefore, the development of an efficient and environmentally friendly photocatalyst has become a hotpot. In this work, magnetic Fe3O4/C/MnO2/C3N4 composite as photocatalyst was synthesized by combining in situ coating with low-temperature reassembling of CN precursors. Morphology and structure characterization showed that the composite photocatalyst has a hollow core–shell flower-like structure. In the composite, the magnetic Fe3O4 core was convenient for magnetic separation and recovery. The introduction of conductive C layer could avoid recombining photo-generated electrons and holes effectively. Ultra-thin g-C3N4 layer could fully contact with coupled semiconductor. A Z-type heterojunction between g-C3N4 and flower-like MnO2 was constructed to improve photocatalytic performance. Under the simulated visible light, 15 wt% photocatalyst exhibited 94.11% degradation efficiency in 140 min for degrading methyl orange and good recyclability in the cycle experiment.
Highlights
The serious problems of environmental pollution and energy shortage have pushed the green economy photocatalysis technology to the forefront of research
Compared with the former, the surface of the latter becomes much smoother, which proves the successful formation of polymer coating
The overall flower-like morphology has not changed, but the thickness of the MnO2 flower sheets has increased significantly. This case indicates that the ultra-thin C 3N4 layer is successfully formed on the surface of M nO2 to form a flower-like F e3O4/C/MnO2/ C3N4 composite photocatalyst
Summary
The serious problems of environmental pollution and energy shortage have pushed the green economy photocatalysis technology to the forefront of research. A flower-like F e3O4/C/MnO2/C3N4 composite photocatalyst with core–shell structure was obtained. Flower-like Fe3O4/C/MnO2 microspheres with core–shell structure were obtained by using an external magnet, and washed three times and lyophilized.
Sign-in/Register to view highlights & summary 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 callDisclaimer: 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.
