Metal–organic frameworks and derived materials as photocatalysts for water splitting and carbon dioxide reduction

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 469, P. 214664 - 214664

Published: June 24, 2022

Language: Английский

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Piezocatalytic Techniques in Environmental Remediation

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(5)

Published: Nov. 1, 2022

Abstract As a consequence of rapid industrialization throughout the world, various environmental pollutants have begun to accumulate in water, air, and soil. This endangers ecological environment earth, remediation has become an immediate priority. Among techniques, piezocatalytic which uniquely take advantage piezoelectric effect, attracted much attention. Piezoelectric effects allow pollutant degradation directly, while also enhancing photocatalysis by reducing recombination photogenerated carriers. In this Review, we provide comprehensive summary recent developments techniques for remediation. The origin effect as well classification materials their application are systematically summarized. We analyze potential underlying mechanisms. Finally, urgent problems future development discussed.

Language: Английский

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Rare earth-based MOFs for photo/electrocatalysis

Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(5), P. 806 - 827

Published: Jan. 1, 2023

This review provides current research progress on rare earth MOFs, including synthesis methods and photocatalytic electrocatalytic applications of MOFs.

Language: Английский

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Chemical Bonding of g-C₃N₄/UiO-66(Zr/Ce) from Zr and Ce Single Atoms for Efficient Photocatalytic Reduction of CO₂ under Visible Light

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(7), P. 4597 - 4610

Published: March 21, 2023

The most promising approach to mitigating the greenhouse effect and tackling energy crisis is convert carbon dioxide into valuable liquid fuels through artificial photosynthesis. Nevertheless, photocatalysts have poor product selectivity, low catalytic performance, cycling stability. Herein, we synthesized novel UiO-66(Zr/Ce) nanosheets bonding on g-C3N4 [g-C3N4/UiO-66(Zr/Ce)] by an in situ method using single atoms of Zr Ce as metal sources, are linked via N–Zr/Ce–O bonds g-C3N4/UiO-66 interface. Chemical close contact between with a two-dimensional structure accelerate transmission electrons significantly suppresses quenching photogenerated carriers. Furthermore, doping g-C3N4/UiO-66(Zr/Ce) concentrates around atoms, making multielectron CO2 reduction reaction more favorable. Without adding any sacrificial agent, shows efficient CH3OH (54.71 μmol h–1 g–1) C2H5OH (38.10 g–1). Moreover, TOF value composite catalyst 28 times that bulk UiO-66(Zr/Ce). It exhibits excellent stability thanks strong coordination catalyst. After 12 cycles, photocatalytic performance does not decrease.

Language: Английский

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Sub-1 nm Cu₂O Nanosheets for the Electrochemical CO₂ Reduction and Valence State–Activity Relationship

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(48), P. 26133 - 26143

Published: Nov. 17, 2023

The copper-based (Cu-based) electrocatalytic materials effectively carry out the carbon dioxide reduction reaction (CO2RR) toward C2+ products, yet superiority and stability of oxidation state Cu are still worth studying. Herein, we designed prepared three Cu-based electrocatalysts with different states to study valence state-activity relationship. Among these electrocatalysts, Cu2O nanosheets thickness only 0.9 nm show an extremely high Faraday efficiency (FEC2+) ∼81%, FEC2+ has increase 37% compared traditional CuOx phase. ultrathin two-dimensional (2D) nanosheet structure abundant oxygen vacancies can stabilize improve selectivity for products in CO2RR. In situ Raman spectroscopy density functional theory calculations demonstrate that rich Cu+ 2D is most suitable *CO adsorption coverage on catalyst surface, which promotes C-C coupling This work provides excellent CO2RR products.

Language: Английский

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Analysis of metal–organic framework-based photosynthetic CO2 reduction

Nature Synthesis, Journal Year: 2024, Volume and Issue: 3(3), P. 307 - 318

Published: March 7, 2024

Language: Английский

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Boosting Solar‐Driven CO₂ Conversion to Ethanol via Single‐Atom Catalyst with Defected Low‐Coordination Cu‐N₂ Motif

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(31)

Published: May 18, 2024

Cu-based catalysts have been shown to selectively catalyze CO

Language: Английский

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Catalysis with Two‐Dimensional Metal‐Organic Frameworks: Synthesis, Characterization, and Modulation

Small, Journal Year: 2024, Volume and Issue: 20(24)

Published: Jan. 12, 2024

Abstract The demand for the exploration of highly active and durable electro/photocatalysts renewable energy conversion has experienced a significant surge in recent years. Metal‐organic frameworks (MOFs), by virtue their high porosity, large surface area, modifiable metal centers ligands, have gained tremendous attention demonstrated promising prospects electro/photocatalytic conversion. However, small pore sizes limited sites 3D bulk MOFs hinder wide applications. Developing 2D with tailored thickness aspect ratio emerged as an effective approach to meet these challenges, offering density exposed sites, better mechanical stability, assembly flexibility, shorter charge photoexcited state transfer distances compared MOFs. In this review, synthesis methods most up‐to‐date are first overviewed, highlighting respective advantages disadvantages. Subsequently, systematic analysis is conducted on identification electronic structure modulation catalytic applications conversion, including electrocatalysis photocatalysis (electro/photocatalysis). Lastly, current challenges future development toward efficient practical electro/photocatalysis proposed.

Language: Английский

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Novel advances in synthesis and catalytic applications of metal-organic frameworks - based nanocatalysts for CO2 capture and transformation

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112835 - 112835

Published: April 21, 2024

Language: Английский

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An unlocked core–shell Cu2O/NiCu-MOF ternary heterojunction on g-C3N4 enables highly efficient photocatalytic reduction of CO2 under visible light

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152435 - 152435

Published: May 21, 2024

Language: Английский

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