Back to Search
Start Over
Efficient photocatalytic dye degradation by flowerlike MoS2/SrFe12O19 heterojunction under visible light
- Source :
- Applied Surface Science. 559:149855
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Photocatalysis is one of the most promising technologies in wastewater treatment. Efficient degradation under visible light and the recovery capability of the photocatalyst are crucial in real-word applications. Herein, M−type SrFe12O19 was integrated into the surface of flowerlike MoS2 microsphere via the hydrothermal method. As-prepared SrFe12O19/MoS2 composite photocatalyst has effective visible light response and magnetic recovery ability. The SrFe12O19/MoS2 composite achieved 97% degradation rate for methylene blue under visible light. The photocatalytic reaction rate of the SrFe12O19/MoS2 composite was nearly twice that of pure MoS2. Transient steady-state fluorescence spectrometry and electrochemical spectrometry revealed that an appropriate amount of SrFe12O19 effectively improves the charge transfer rate and accelerates photoinduced charge carrier separation. The possible photocatalytic degradation mechanism of the SrFe12O19/MoS2 composite with the p–n heterojunction was also examined.
- Subjects :
- Materials science
Composite number
Fluorescence spectrometry
General Physics and Astronomy
Heterojunction
02 engineering and technology
Surfaces and Interfaces
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
chemistry.chemical_compound
chemistry
Chemical engineering
Photocatalysis
Degradation (geology)
Charge carrier
0210 nano-technology
Methylene blue
Visible spectrum
Subjects
Details
- ISSN :
- 01694332
- Volume :
- 559
- Database :
- OpenAIRE
- Journal :
- Applied Surface Science
- Accession number :
- edsair.doi...........00a1f11a2d1ee213b5626b245f815cf4