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Construction of ternary heterojunction AgI/C-MoS2 nanosheets with enhanced visible-light photocatalytic property and self-cleaning performance
- Source :
- Frontiers of Materials Science. 15:241-252
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Carbon-molybdenum disulfide (C-MoS2) ultrathin nanosheets were prepared by a hydrothermal process, and then AgI/C-MoS2 were synthesized via an in-situ deposition method. This ternary heterojunction composite exhibited better photocatalytic activity compared with those of one-component (pristine MoS2) and bicomponent (AgI/MoS2 and C-MoS2) materials for the degradation of organic dyes under the visible-light irradiation. In particular, by comparing with AgI/MoS2, the significant role of conductive amorphous carbon in AgI/C-MoS2 in enhancing the charge transfer during the photocatalytic degradation of dyes was first confirmed by photocurrent response and electrochemical impedance spectroscopy (EIS). A possible photocatalytic mechanism was proposed based on the capture experiment results. Furthermore, a straightforward and interesting way had been applied to test the recycled/newly-prepared AgI/C-MoS2 composite for revealing its distinctive self-cleaning performance and recyclability characteristic besides its good photocatalytic activity. This work could provide a reference for the design of other new ternary heterojunction composite materials with special structures and properties.
- Subjects :
- Photocurrent
Materials science
Composite number
Heterojunction
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Hydrothermal circulation
0104 chemical sciences
Dielectric spectroscopy
Amorphous carbon
Chemical engineering
Photocatalysis
General Materials Science
0210 nano-technology
Ternary operation
Subjects
Details
- ISSN :
- 20950268 and 2095025X
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Frontiers of Materials Science
- Accession number :
- edsair.doi...........9dd9ea2c26fbb2c48007cf9ed6331de0