Boosting photocatalytic CO2 reduction in a ZnS/ZnIn2S4 heterostructure through strain-induced direct Z-scheme and a mechanistic study of molecular CO2 interaction thereon

Sabbah, Amr; Shown, Indrajit; Qorbani, Mohammad; Fu, Fang‐Yu; Lin, Tsung-Chih; Wu, Heng‐Liang; Chung, Po‐Wen; Wu, Chih-I; Santiago, Svette Reina Merden; Shen, Ji‐Lin; Chen, Kuei‐Hsien; Chen, Li‐Chyong

doi:10.1016/j.nanoen.2021.106809

Cited by 150 publications

(56 citation statements)

References 68 publications

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“…CO 2 RR through artificial photosynthesis involves a series of processes: light-harvesting, exciton dissociation, photogenerated charge carrier diffusion, and transfer to the adsorbed molecule 4 – 7 . Researchers have rationally designed different material-based strategies to realize high performance in each step: e.g., introducing co-catalyst 8 , 9 , modifying the electronic structure 10 , 11 , heterostructuring 12 – 14 , and enhancing the surface area 15 , 16 (Supplementary Fig. 1 and Supplementary Table 1 ).…”

Section: Introductionmentioning

confidence: 99%

Atomistic insights into highly active reconstructed edges of monolayer 2H-WSe2 photocatalyst

et al. 2022

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Ascertaining the function of in-plane intrinsic defects and edge atoms is necessary for developing efficient low-dimensional photocatalysts. We report the wireless photocatalytic CO2 reduction to CH4 over reconstructed edge atoms of monolayer 2H-WSe2 artificial leaves. Our first-principles calculations demonstrate that reconstructed and imperfect edge configurations enable CO2 binding to form linear and bent molecules. Experimental results show that the solar-to-fuel quantum efficiency is a reciprocal function of the flake size. It also indicates that the consumed electron rate per edge atom is two orders of magnitude larger than the in-plane intrinsic defects. Further, nanoscale redox mapping at the monolayer WSe2–liquid interface confirms that the edge is the most preferred region for charge transfer. Our results pave the way for designing a new class of monolayer transition metal dichalcogenides with reconstructed edges as a non-precious co-catalyst for wired or wireless hydrogen evolution or CO2 reduction reactions.

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Section: Introductionmentioning

confidence: 99%

Atomistic insights into highly active reconstructed edges of monolayer 2H-WSe2 photocatalyst

et al. 2022

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“…2c, all the samples have absorption in the UV-visible region; however, in the range of 400–800 nm, the defects in MOFs affect the visible light absorption since the ML UiO-66-NH 2 -ML-100 and MC UiO-66-NH 2 -MC-200 samples show the strongest and weakest visible-light absorption, respectively. Their band gaps ( E g ) were unveiled by the Tauc plots, derived from UV-vis diffuse reflectance spectroscopy, 46,47 and determined to be 2.70, 2.39, 2.38, 2.73 and 2.80 eV, respectively for pristine UiO-66-NH 2 , defect UiO-66-NH 2 -ML-50, UiO-66-NH 2 -ML-100, UiO-66-NH 2 -MC-150 and UiO-66-NH 2 -MC-200 (Fig. 2d).…”

Section: Resultsmentioning

confidence: 99%

Tailoring defect-type and ligand-vacancies in Zr(iv) frameworks for CO₂ photoreduction

Wang

Cheng

et al. 2022

J. Mater. Chem. A

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“…Although Type−II heterojunction photocatalysts exhibit good photocatalytic performance, such high photocatalytic performance sacrifices the redox ability of charge carriers, so the reduced driving force may not smoothly drive the specific photocatalytic reaction. Due to the well matching of the electronic band structure of the two semiconductor materials, the Z-scheme heterojunction keeps the electrons at a more negative potential and the holes at a corrected potential, resulting in a strong redox ability ( Sabbah et al, 2022 ; Su et al, 2022 ).…”

Section: Optimization Of Photocatalytic Hydrogen Evolution Performanc...mentioning

confidence: 99%

The Potential Strategies of ZnIn2S4-Based Photocatalysts for the Enhanced Hydrogen Evolution Reaction

et al. 2022

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Photocatalysis is a potential strategy to solve energy and environmental problems. The development of new sustainable photocatalysts is a current topic in the field of photocatalysis. ZnIn2S4, a visible light-responsive photocatalyst, has attracted extensive research interest in recent years. Due to its suitable band gap, strong chemical stability, durability, and easy synthesis, it is expected to become a new hot spot in the field of photocatalysis in the near future. This mini-review presents a comprehensive summary of the modulation strategies to effectively improve the photocatalytic activity of ZnIn2S4 such as morphology and structural engineering, defects engineering, doping engineering, and heterojunction engineering. This review aims to provide reference to the proof-of-concept design of highly active ZnIn2S4-based photocatalysts for the enhanced hydrogen evolution reaction.

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Boosting photocatalytic CO2 reduction in a ZnS/ZnIn2S4 heterostructure through strain-induced direct Z-scheme and a mechanistic study of molecular CO2 interaction thereon

Cited by 150 publications

References 68 publications

Atomistic insights into highly active reconstructed edges of monolayer 2H-WSe2 photocatalyst

Atomistic insights into highly active reconstructed edges of monolayer 2H-WSe2 photocatalyst

Tailoring defect-type and ligand-vacancies in Zr(iv) frameworks for CO₂ photoreduction

The Potential Strategies of ZnIn2S4-Based Photocatalysts for the Enhanced Hydrogen Evolution Reaction

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Boosting photocatalytic CO2 reduction in a ZnS/ZnIn2S4 heterostructure through strain-induced direct Z-scheme and a mechanistic study of molecular CO2 interaction thereon

Cited by 150 publications

References 68 publications

Atomistic insights into highly active reconstructed edges of monolayer 2H-WSe2 photocatalyst

Atomistic insights into highly active reconstructed edges of monolayer 2H-WSe2 photocatalyst

Tailoring defect-type and ligand-vacancies in Zr(iv) frameworks for CO2 photoreduction

The Potential Strategies of ZnIn2S4-Based Photocatalysts for the Enhanced Hydrogen Evolution Reaction

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Tailoring defect-type and ligand-vacancies in Zr(iv) frameworks for CO₂ photoreduction