In situ/Operando Synchrotron Radiation Analytical Techniques for CO₂/CO Reduction Reaction: From Atomic Scales to Mesoscales

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(25)

Published: April 11, 2024

Electrocatalytic carbon dioxide/carbon monoxide reduction reaction (CO

Language: Английский

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Floatable artificial leaf to couple oxygen-tolerant CO2 conversion with water purification

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 2, 2025

Language: Английский

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Artificial Photosynthesis for Regioselective Reduction of NAD(P)⁺ to NAD(P)H Using Water as an Electron and Proton Source

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(8), P. 5152 - 5161

Published: Feb. 13, 2024

In photosynthesis, four electrons and protons taken from water in photosystem II (PSII) are used to reduce NAD(P)+ produce NAD(P)H I (PSI), which is the most important reductant CO2. Despite extensive efforts mimic artificial photosynthesis using electron proton sources has yet be achieved. Herein, we report photocatalytic reduction of its analogues a molecular model PSI, combined with oxidation PSII. Photoirradiation toluene/trifluoroethanol (TFE)/borate buffer aqueous solution hydroquinone derivatives (X-QH2), 9-mesityl-10-methylacridinium ion, cobaloxime, (PSI model) resulted quantitative regioselective formation p-benzoquinone (X-Q). X-Q was reduced X-QH2, accompanied by dioxygen under photoirradiation toluene/TFE/borate [(N4Py)FeII]2+ (PSII model). The PSI PSII models were two glass membranes liquid as an source turnover number (TON) 54. To best our knowledge, this first time achieve stoichiometry O2.

Language: Английский

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Anisotropic Dual S‐Scheme Heterojunctions Mimic Natural Photosynthetic System for Boosting Photoelectric Response

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: June 6, 2024

The design of heterojunctions that mimic natural photosynthetic systems holds great promise for enhancing photoelectric response. However, the limited interfacial space charge layer (SCL) often fails to provide sufficient driving force directional migration inner carriers. Drawing inspiration from electron transport chain (ETC) in photosynthesis system, we developed a novel anisotropic dual S-scheme heterojunction artificial system composed Bi

Language: Английский

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Anisotropic Dual S‐Scheme Heterojunctions Mimic Natural Photosynthetic System for Boosting Photoelectric Response

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: June 6, 2024

Abstract The design of heterojunctions that mimic natural photosynthetic systems holds great promise for enhancing photoelectric response. However, the limited interfacial space charge layer (SCL) often fails to provide sufficient driving force directional migration inner carriers. Drawing inspiration from electron transport chain (ETC) in photosynthesis system, we developed a novel anisotropic dual S‐scheme heterojunction artificial system composed Bi 2 O 3 −BiOBr−AgI first time, with and AgI selectively distributed along bicrystal facets BiOBr. Compared traditional semiconductors, carrier BiOBr overcomes recombination resulting thermodynamic diffusion, thereby establishing potential ETC Importantly, this pioneering bioinspired limitations imposed by distribution SCL heterojunctions, remarkable 55‐fold enhancement performance. Leveraging etching thiols on Ag‐based materials, is further employed construction photoelectrochemical sensors detection acetylcholinesterase organophosphorus pesticides.

Language: Английский

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Synergistic Approaches for Enhanced Light-Driven Hydrogen Production: A Membrane-Anchoring Protein-Engineered Biohybrid System with Dual Photosensitizers Strategy

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(4), P. 1418 - 1428

Published: March 12, 2024

Sunlight-driven hydrogen production provides a sustainable solution for clean energy generation. Despite their potential, extracellular photosensitized biohybrid systems are typically hindered by sluggish electron transfer between semiconductor materials and microorganisms. Herein, we introduce bioinspired development, the membrane-anchoring protein approach, to overcome this limitation. Using incorporated with TiO2 binding peptide on engineered E. coli, establish proof-of-concept demonstrate an 81-fold enhancement in efficiency 10.8-fold increase production. Unprecedented insights into dynamics of interface revealed herein using methyl viologen as shuttle. Additionally, introducing Eosin Y photosensitizer model enhances both source efficiency, further boosting The synergistic approach utilizing intracellular dual photosensitizers overcomes limitations transfer, overall system, creates more efficient pathway light-driven

Language: Английский

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Regulating the Active Sites of Cs₂AgBiCl₆ by Doping for Efficient Coupling of Photocatalytic CO₂ Reduction and Benzyl Alcohol Oxidation

Small, Journal Year: 2023, Volume and Issue: 20(1)

Published: Aug. 31, 2023

Abstract Halide perovskites exhibit outstanding optoelectronic properties, which make them an ideal choice for photocatalytic CO 2 reduction and benzyl alcohol (BA) oxidation. Nevertheless, the simultaneous realization of above redox coupling reactions on halide remains a great challenge, as it requires distinct catalytic sites different target reactions. Herein, Cs AgBiCl 6 (CABC) are regulated by doping Fe efficient BA The Fe‐doped CABC (Fe: CABC) exhibits enhanced visible‐light response effective charge separation. Experimental results theoretical calculations reveal synergistic interplay between Bi sites, where have lower activation energies toward Further investigations demonstrate that electrons holes prefer to accumulate at site under light irradiation, respectively, creates favorable conditions facilitating resultant Fe: achieves high performance (18.5 µmol g −1 h ) BD (1.1 mmol generation, surpasses most state‐of‐the‐art photocatalysts. This work demonstrates facile strategy regulating reactions, will pave new way designing photocatalysis.

Language: Английский

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Nature-Inspired Photocatalytic Hydrogen Production with a Flavin Photosensitizer

ACS Omega, Journal Year: 2024, Volume and Issue: 9(5), P. 5534 - 5540

Published: Jan. 26, 2024

Green hydrogen, by definition, must be produced with renewable energy sources without using fossil fuels. To transform the system, we need a fully sustainable production of green and as well introduction such "solar fuels" to tackle chemical storage aspect energies. Conventional electrolysis water splitting into oxygen hydrogen gases is clean nonfossil method, but use massive noble-metal electrodes makes it expensive. Direct photocatalytic evolution in an ideal approach, industrial scale not available yet. In this paper, intend introduce flavins metal-free organic photosensitizers for photoinduced reduction processes. Specifically, flavin photosensitizer was employed gas aqueous media. The ratio cocatalyst concentration has been found affect efficiency reaction. Since are nature-inspired molecules (like vitamin B2) easily tunable properties through structure modification, family compounds opens door new possibilities production.

Language: Английский

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Insight into the Rate-Determining Step in Photocatalytic Z-Scheme Overall Water Splitting by Employing A Series of Perovskite RTaON₂ (R = Pr, Nd, Sm, and Gd) as Model Photocatalysts

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 4, 2024

Photocatalysis is an intricate process that involves a multitude of physical and chemical factors operating across diverse temporal spatial scales. Identifying the dominant influence photocatalyst performance one central challenges in field. Here, we synthesized series perovskite RTaON

Language: Английский

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Harnessing the Power of Photosynthesis: from Current Engineering Strategies to Cell Factory Applications

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Abstract Photosynthesis has garnered significant interest due to its potential for retrofitting and intrinsic enzyme‐mediated metabolic processes, which can convert carbon dioxide (CO 2 ) into biomass powered by solar energy. However, natural photosynthesis is limited factors such as low photosynthetic efficiency constraints on the range of output products. To address these issues, researchers have developed various strategies designing engineering systems. These include nanomaterial‐assisted approaches enhance light absorption accelerate electron transfer, microfluidic technologies precise manipulation enzyme modules, synthetic biology techniques optimize pathways, photo‐bioelectrochemical systems (PBESs) efficient utilization electrons. Inspired these, numerous applications emerged in fields artificial organelles, promotion hypoxic tissue healing, bioproduction, environmental production sustainability. This review provides a comprehensive introduction principles photosynthesis, encompassing reactions. Additionally, it offers an overview recent design, structuring, systems, while discussing several photosynthesis. Finally, this highlights engineered challenges energy matter conversion across fields, offering insights future sustainable, photosynthesis‐based technologies.

Language: Английский

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