1-(3-Bromophenyl)-4-oxocyclohexanecarboxylic acid
CAS Number:
1385694-53-0
Molecular Formula:
C13H13BrO3
Design of a noble-metal-free direct Z-scheme photocatalyst for overall water splitting based on a SnC/SnSSe van der Waals heterostructure
Literature Information
Publication Date
2021-09-15
DOI
10.1039/D1CP03398K
Impact Factor
3.676
Authors
Xinxin Jiang, Quan Gao, Xuhui Xu, Ge Xu, Dongmei Li, Bin Cui, Fanyao Qu
View Original
Abstract
Semiconductor photocatalysts, using sunlight to stimulate various photocatalytic reactions, are promising materials for solving the energy crisis and environmental problems. However, the low photocatalytic efficiency and high cost pose major challenges for their widespread application. Mimicking the natural photosynthesis system, we propose a direct Z-scheme photocatalyst based on a Janus van der Waals heterostructure (vdWH) comprising SnC and Janus SeSnS monolayers. From first-principles calculations, the intrinsic built-in electric field of Janus SeSnS and the charge transfer from the SnC to the SeSnS layer give rise to a type-II band alignment. Such a band alignment benefits the formation of spatially separated reductive and oxidative active sites and the reduction of the global bandgap of the Janus vdWH. The proposed material increases the solar-to-hydrogen conversion efficiency to 60.8%. Besides, we also find that the light absorption coefficient is stacking configuration controllable and strain-tunable, e.g., the tensile strain promotes photocatalytic efficiency. Moreover, because Sn, S, and Se are environmentally benign and inexpensive elements, SnC/SeSnS vdWH is a promising noble-metal-free direct Z-scheme photocatalyst.
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Source Journal
Physical Chemistry Chemical Physics
CiteScore:
5.5
Self-citation Rate:
10.3%
Articles per Year:
3036
Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
Recommended Compounds
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2-Methyl-2-propanyl 4-[3-(aminomethyl)phenyl]-1-piperazinecarboxylate
CAS Number:
889948-55-4
Molecular Formula:
C16H25N3O2
![Ethyl 5-[({[(2-methyl-2-propanyl)oxy]carbonyl}amino)methyl]-1,2-oxazole-3-carboxylate structure](https://static.chemtradehub.com/structs/253/253196-37-1-8450.webp "Ethyl 5-[({[(2-methyl-2-propanyl)oxy]carbonyl}amino)methyl]-1,2-oxazole-3-carboxylate structure")
Ethyl 5-[({[(2-methyl-2-propanyl)oxy]carbonyl}amino)methyl]-1,2-oxazole-3-carboxylate
CAS Number:
253196-37-1
Molecular Formula:
C12H18N2O5
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