Hollow flower-like polyhedral α-Fe2O3/Defective MoS2/Ag Z-scheme heterojunctions with enhanced photocatalytic-Fenton performance via surface plasmon resonance and photothermal effects
Hollow flower-like polyhedral α-Fe2O3/Defective MoS2/Ag Z-scheme heterojunctions with enhanced photocatalytic-Fenton performance via surface plasmon resonance and photothermal effects
Hollow Polyhedral superstructures can capture light effectively and have adjustable composite composition, which is useful for constructing Z-scheme systems. Here, rational design of hollow flower-like polyhedral α-Fe2O3/defective MoS2/Ag Z-Scheme heterojunctions is described, using polyhedral α-Fe2O3 as the template and via a one-pot hydrothermal and postdeposition strategy. The hollow flower-like polyhedral heterojunctions utilize multiple reflections of light in the hollow structure to achieve enhanced photocatalytic activity. Defective MoS2 acts as a link between α-Fe2O3 and Ag nanoparticles, providing a great deal of active sites and broadening the photoresponse region. Because of the enhancement of light absorption and surface plasma resonance of Ag, α-Fe2O3/defective MoS2/Ag has significant photothermal effect. The photogenerated carriers can be effectively separated by the construction of a Z-scheme system. Importantly, photocatalytic-Fenton degradation of 2,4-dichlorophenol and salicylic acid over hollow flower-like polyhedral α-Fe2O3/defective MoS2/Ag is higher than that of α-Fe2O3 and α-Fe2O3/defective MoS2.
Hollow structure, Photocatalytic-Fenton, Photothermal effects, Surface plasmon resonance, Z-scheme
1-9
Guo, Meijun
2f4d2d87-4f03-4911-8633-b79608449362
Xing, Zipeng
588e0b59-7275-4728-9316-c31ec067d37d
Zhao, Tianyu
a46a4828-606e-4a5c-9514-8b2b759e3ee9
Qiu, Yalu
e1f726f0-f0c8-4f65-a0f3-6a3413e6a56f
Tao, Bing
a016d442-8190-4f19-b71b-d3f7e4ce357f
Li, Zhenzi
c96d2bee-322c-45b2-9559-d5fbf9f588a0
Zhou, Wei
2af1b348-7d55-43e6-82db-4e07d9d354a3
5 September 2020
Guo, Meijun
2f4d2d87-4f03-4911-8633-b79608449362
Xing, Zipeng
588e0b59-7275-4728-9316-c31ec067d37d
Zhao, Tianyu
a46a4828-606e-4a5c-9514-8b2b759e3ee9
Qiu, Yalu
e1f726f0-f0c8-4f65-a0f3-6a3413e6a56f
Tao, Bing
a016d442-8190-4f19-b71b-d3f7e4ce357f
Li, Zhenzi
c96d2bee-322c-45b2-9559-d5fbf9f588a0
Zhou, Wei
2af1b348-7d55-43e6-82db-4e07d9d354a3
Guo, Meijun, Xing, Zipeng, Zhao, Tianyu, Qiu, Yalu, Tao, Bing, Li, Zhenzi and Zhou, Wei
(2020)
Hollow flower-like polyhedral α-Fe2O3/Defective MoS2/Ag Z-scheme heterojunctions with enhanced photocatalytic-Fenton performance via surface plasmon resonance and photothermal effects.
Applied Catalysis B: Environmental, 272, , [118978].
(doi:10.1016/j.apcatb.2020.118978).
Abstract
Hollow Polyhedral superstructures can capture light effectively and have adjustable composite composition, which is useful for constructing Z-scheme systems. Here, rational design of hollow flower-like polyhedral α-Fe2O3/defective MoS2/Ag Z-Scheme heterojunctions is described, using polyhedral α-Fe2O3 as the template and via a one-pot hydrothermal and postdeposition strategy. The hollow flower-like polyhedral heterojunctions utilize multiple reflections of light in the hollow structure to achieve enhanced photocatalytic activity. Defective MoS2 acts as a link between α-Fe2O3 and Ag nanoparticles, providing a great deal of active sites and broadening the photoresponse region. Because of the enhancement of light absorption and surface plasma resonance of Ag, α-Fe2O3/defective MoS2/Ag has significant photothermal effect. The photogenerated carriers can be effectively separated by the construction of a Z-scheme system. Importantly, photocatalytic-Fenton degradation of 2,4-dichlorophenol and salicylic acid over hollow flower-like polyhedral α-Fe2O3/defective MoS2/Ag is higher than that of α-Fe2O3 and α-Fe2O3/defective MoS2.
Text
Hollow Flower-Like Polyhedral α-Fe2O3Defective MoS2Ag Z-Scheme Heterojunctions with Enhanced Photocatalytic-Fenton Performance via Surface Plasmon Resonance and Photothermal Effects
- Accepted Manuscript
More information
Accepted/In Press date: 5 April 2020
e-pub ahead of print date: 11 April 2020
Published date: 5 September 2020
Keywords:
Hollow structure, Photocatalytic-Fenton, Photothermal effects, Surface plasmon resonance, Z-scheme
Identifiers
Local EPrints ID: 439439
URI: http://eprints.soton.ac.uk/id/eprint/439439
ISSN: 0926-3373
PURE UUID: 58d3b0e1-eeb5-4979-b100-a1ff03d62078
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Date deposited: 22 Apr 2020 17:05
Last modified: 06 Jun 2024 04:09
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Contributors
Author:
Meijun Guo
Author:
Zipeng Xing
Author:
Tianyu Zhao
Author:
Yalu Qiu
Author:
Zhenzi Li
Author:
Wei Zhou
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