Study on synergistic effects of 4f levels of erbium and black phosphorus/SnNb<sub>2</sub>O<sub>6</sub> heterostructure catalysts by multiple spectroscopic analysis techniques

Li, Minze; Wang, Jingzhen; Wang, Qiuye; Lu, Honglai; Wang, Guofeng; Fu, Honggang

doi:10.1039/d3sc05464k

Cited by 5 publications

(1 citation statement)

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“…In addition, the optimized MTO:Ho/CN:Ho exhibits better photocatalytic performance and excellent originality compared to other materials reported (Table S1, ESI†). 28–36 The mechanism of improved photocatalytic performance was studied by fully utilizing DFT calculations and various spectroscopic techniques such as steady-state, transient, and ultrafast absorption spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Photocontrolled heterojunctions constructed from holmium single atom modified Mg_1.2Ti_1.8O₅/g-C₃N₄ with enhanced photocatalytic CO₂ conversion

An,

Ge,

Wang

et al. 2024

Energy Environ. Sci.

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Section: Introductionmentioning

confidence: 99%

Photocontrolled heterojunctions constructed from holmium single atom modified Mg_1.2Ti_1.8O₅/g-C₃N₄ with enhanced photocatalytic CO₂ conversion

An,

Ge,

Wang

et al. 2024

Energy Environ. Sci.

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A Novel Perspective on Enhancing Photocatalytic Performance through the Synergistic Effect of Nd Single Atoms and Heterostructures

Ge,

An,

Wang

et al. 2024

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There are few reports on lanthanide single atom modified catalysts, as the role of the 4f levels in photocatalysis is difficult to explain clearly. Here, the synergistic effect of 4f levels of Nd and heterostructures is studied by combining steady‐state, transient, and ultrafast spectral analysis techniques with DFT theoretical calculations based on the construction of Nd single atom modified black phosphorus/g‐C3N4 (BP/CN) heterojunctions. As expected, the generation rates of CO and CH4 of the optimized heterostructure are 7.44 and 6.85 times higher than those of CN, and 8.43 and 9.65 times higher than those of BP, respectively. The Nd single atoms can not only cause surface reconstruction and regulate the active sites of BP, but also accelerate charge separation and transfer, further suppressing the recombination of electron‐hole pairs. The electrons can transfer from g‐C3N4:Nd to BP:Nd, with a transfer time of ≈11.4 ps, while the radiation recombination time of electron‐hole pairs of g‐C3N4 is ≈26.13 µs, indicating that the construction of heterojunctions promotes charge transfer. The 2P1/2/2G9/2/4G7/2/2H11/2/4F7/2→4I9/2 emissions from Nd3+ can also be absorbed by heterostructures, which improves the utilization of light. The energy change of the key rate measurement step CO2*→COOH* decreases through Nd single atom modification.

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Dual‐Atom P–Co–Dy Charge‐Transfer Bridge on Black Phosphorus for Enhanced Photocatalytic CO₂ Reduction

He,

Tian,

Lin

et al. 2024

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The synergistic effect of rare earth single‐atoms and transition metal single‐atoms may enable us to achieve some unprecedented performance and characteristics. Here, Co–Dy dual‐atoms on black phosphorus with a P–Co–Dy charge‐transfer bridge are designed and fabricated as the active center for the CO2 photoreduction reaction. The synergistic effect of Co–Dy on the performance of black phosphorus is studied by combining X‐ray absorption spectroscopy, ultrafast spectral analysis, and in situ technology with DFT calculations. The results show that the Co and Dy bimetallic active site can promote charge transfer by the charge transfer bridge from P to Dy, and then to Co, thereby improving the photocatalytic activity of black phosphorus. The performance of catalysts excited at different wavelength light indicates that the 4G11/2/2I15/2/4F9/2→6H15/2 and 4F9/2→6H13/2 emissions of Dy can be absorbed by black phosphorus to improve the utilization of sunlight. The in situ DRIFTS and density functional theory (DFT) calculations are used to investigate the CO2 photoreduction pathway. This work provides an depth insight into the mechanism of dual‐atom catalysts with enhanced photocatalytic performance, which helps to design novel atomic photocatalysts with excellent activity for CO2 reduction reactions.

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Study on synergistic effects of 4f levels of erbium and black phosphorus/SnNb₂O₆ heterostructure catalysts by multiple spectroscopic analysis techniques

Abstract: Visible-light-driven CO2 photoreduction performance can be improved by utilizing the synergistic effect of BPEr/SNOEr heterostructures, Er single atoms and the Er 4f energy level to facilitate light absorption.

Cited by 5 publications

References 46 publications

Photocontrolled heterojunctions constructed from holmium single atom modified Mg_1.2Ti_1.8O₅/g-C₃N₄ with enhanced photocatalytic CO₂ conversion

Photocontrolled heterojunctions constructed from holmium single atom modified Mg_1.2Ti_1.8O₅/g-C₃N₄ with enhanced photocatalytic CO₂ conversion

A Novel Perspective on Enhancing Photocatalytic Performance through the Synergistic Effect of Nd Single Atoms and Heterostructures

Dual‐Atom P–Co–Dy Charge‐Transfer Bridge on Black Phosphorus for Enhanced Photocatalytic CO₂ Reduction

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Study on synergistic effects of 4f levels of erbium and black phosphorus/SnNb2O6 heterostructure catalysts by multiple spectroscopic analysis techniques

Abstract: Visible-light-driven CO2 photoreduction performance can be improved by utilizing the synergistic effect of BPEr/SNOEr heterostructures, Er single atoms and the Er 4f energy level to facilitate light absorption.

Cited by 5 publications

References 46 publications

Photocontrolled heterojunctions constructed from holmium single atom modified Mg1.2Ti1.8O5/g-C3N4 with enhanced photocatalytic CO2 conversion

Photocontrolled heterojunctions constructed from holmium single atom modified Mg1.2Ti1.8O5/g-C3N4 with enhanced photocatalytic CO2 conversion

A Novel Perspective on Enhancing Photocatalytic Performance through the Synergistic Effect of Nd Single Atoms and Heterostructures

Dual‐Atom P–Co–Dy Charge‐Transfer Bridge on Black Phosphorus for Enhanced Photocatalytic CO2 Reduction

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Study on synergistic effects of 4f levels of erbium and black phosphorus/SnNb₂O₆ heterostructure catalysts by multiple spectroscopic analysis techniques

Photocontrolled heterojunctions constructed from holmium single atom modified Mg_1.2Ti_1.8O₅/g-C₃N₄ with enhanced photocatalytic CO₂ conversion

Photocontrolled heterojunctions constructed from holmium single atom modified Mg_1.2Ti_1.8O₅/g-C₃N₄ with enhanced photocatalytic CO₂ conversion

Dual‐Atom P–Co–Dy Charge‐Transfer Bridge on Black Phosphorus for Enhanced Photocatalytic CO₂ Reduction