Photocatalytic hydrogen production: an overview of new advances in structural tuning strategies

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(9), P. 4473 - 4486

Published: Jan. 1, 2023

Newly emerged structural tuning strategies, i.e. , singe atom photocatalysts, defect control and S-scheme heterojunctions, display significant advancements for high performance photocatalytic hydrogen production toward the industrialization target.

Language: Английский

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Recent Progress in Interface Engineering of Nanostructures for Photoelectrochemical Energy Harvesting Applications

Small, Journal Year: 2023, Volume and Issue: 19(19)

Published: Feb. 12, 2023

Abstract With rapid and continuous consumption of nonrenewable energy, solar energy can be utilized to meet the requirement mitigate environmental issues in future. To attain a sustainable society with an mix predominately dependent on photoelectrochemical (PEC) device, which semiconductor nanostructure‐based photocatalysts play important roles, is considered one most promising candidates realize sufficient utilization low‐cost, green, environmentally friendly manner. Interface engineering nanostructures has been qualified efficient improvement PEC performances including three basic steps, i.e., light absorption, charge transfer/separation, surface catalytic reaction. In this review, recently developed interface for direct high‐efficiency conversion sunlight into available forms (e.g., chemical fuels electric power) are summarized terms their atomic constitution morphology, electronic structure potential applications. Extensive efforts toward development high‐performance applications water splitting, photodetection, catalysis, degradation biosensors) also presented appraised. Last but not least, brief summary personal insights challenges future directions community next‐generation devices provided.

Language: Английский

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A Comprehensive Review on the Boosted Effects of Anion Vacancy in the Heterogeneous Photocatalytic Degradation, Part II: Focus on Oxygen Vacancy

ACS Omega, Journal Year: 2024, Volume and Issue: 9(6), P. 6093 - 6127

Published: Feb. 5, 2024

Environmental problems, including the increasingly polluted water and energy crisis, have led to a need propose novel strategies/methodologies contribute sustainable progress enhance human well-being. For these goals, heterogeneous semiconducting-based photocatalysis is introduced as green, eco-friendly, cost-effective, effective strategy. The introduction of anion vacancies in semiconductors has been well-known an strategy for considerably enhancing photocatalytic activity such systems, giving them advantages promoting light harvesting, facilitating photogenerated electron-hole pair separation, optimizing electronic structure, yield reactive radicals. This Review will introduce effects vacancy-dominated photodegradation systems. Then, their mechanism illustrate how vacancy changes pathway degradation efficiency toward pollutants overall performance. Specifically, defect types methods tailoring be briefly illustrated, this part focus on oxygen (OV) its recent advances. challenges development issues engineered defects photocatalysts also discussed practical applications provide promising research direction. Finally, some prospects emerging field proposed suggested. All permission numbers adopted figures from literature are summarized separate file Editor.

Language: Английский

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A Comprehensive Review on the Boosted Effects of Anion Vacancy in the Photocatalytic Solar Water Splitting: Focus on Sulfur Vacancy

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(9), P. 7637 - 7664

Published: April 12, 2024

In recent decades, a great interest in photocatalytic water splitting has been due to the importance of sunlight hydrogen production as renewable energy source reduce global warming effects. The applications metal sulfide semiconductors photocatalysts, chalcogenide compounds, with advantages wide range for light harvesting and tunable bandgap, may be restricted by limited active sites, poor conductivity, photo corrosion, charge recombination. sulfur vacancy (SV) effectively addresses these issues generates H2 O2 attaining adequate water-splitting because improved optoelectronic features. This review article aims comprehensively highlight synergistic roles SV sulfides amended overall activity. SV-modulated sulfides' features are deliberated, followed different advanced synthetic techniques effectual defect generation. specific aspects refining optical range, dynamics carrier, photoinduced surface chemical reactions deeply described applications. Finally, summarized vouchsafing outlooks opportunities confronting S-vacancy engineered sulfides-based photocatalysts elucidated. It would expected hoped that this will help researchers design/fabricate better sulfide-based systems.

Language: Английский

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Particle‐Based Photoelectrodes for PEC Water Splitting: Concepts and Perspectives

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: April 15, 2024

Abstract This comprehensive review delves into the intricacies of photoelectrochemical (PEC) water splitting process, specifically focusing on design, fabrication, and optimization particle‐based photoelectrodes for efficient green hydrogen production. These photoelectrodes, composed semiconductor materials, potentially harness light energy generate charge carriers, driving oxidation reduction reactions. The versatility as a platform investigating enhancing various candidates is explored, particularly emerging complex oxides with compelling transfer properties. However, challenges presented by many factors influencing performance stability these including particle size, shape, composition, morphology, surface modification, electrode configuration, are highlighted. introduces fundamental principles PEC splitting, presents an exhaustive overview different synthesis methods powders their assembly discusses recent advances in photoelectrode material development. It concludes offering promising strategies improving stability, such adoption novel architectures heterojunctions.

Language: Английский

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The Role of Point Defects in Heterojunction Photocatalysts: Perspectives and Outlooks

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: July 22, 2024

Abstract The development of efficient photocatalysts is a mainstay for the advancement photocatalytic technology. Heterojunction can overcome inherent limitations single photocatalysts, integrating advantages each component, and achieving separation photogenerated charges, making them research focus in field photocatalysis. role point defects reactions diverse significantly influence performance photocatalysts. This review comprehensively summarizes latest advancements defect engineering modulation heterojunction First, types their impact on processes are introduced. Subsequently, common presented. Then, accordance with recent progress, regulatory mechanisms within outlined, particular functions surface/interfacial properties charge transfer processes. Finally, challenges faced by optimizing promising solutions proposed. provides an in‐depth understanding expectation offering insights into highly active materials.

Language: Английский

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Frustrated Lewis pairs boosting photoelectrochemical nitrate reduction over ZnIn2S4/BiVO4 heterostructure

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 450, P. 138260 - 138260

Published: July 23, 2022

Language: Английский

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Tailoring the Crystallographic Orientation of a Sb₂S₃ Thin Film for Efficient Photoelectrochemical Water Reduction

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(14), P. 8175 - 8184

Published: June 24, 2022

Antimony sulfide (Sb2S3) is an emerging earth-abundant semiconductor for photoelectrochemical (PEC) water reduction. The anisotropic nature of Sb2S3 responsible its direction-dependent carrier transport efficiency. In general, photogenerated carriers transfer more efficiently along the [hk1] orientation than [hk0] orientation. However, synthesis a film with precisely controlled still very challenging. Herein, completely [hk1]-oriented prepared by sulfurizing Ag/Sb bimetallic precursor deposited using dual-source electron-beam evaporation. A sliver-induced crystal growth model proposed to elucidate formation mechanism film. Mechanistic studies reveal that has lower defect density, bulk and surface recombination, better efficiency in comparison those randomly oriented As result, photocathode based on delivers high photocurrent density 9.4 mA cm–2 at 0 V versus RHE applied bias photon-to-current 1.2% neutral electrolyte. Our work not only demonstrates effectiveness PEC splitting but also provides strategy engineering stibnite-type semiconductors solar energy conversion applications.

Language: Английский

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Recent advances in surface regulation and engineering strategies of photoelectrodes toward enhanced photoelectrochemical water splitting

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 494, P. 215362 - 215362

Published: July 28, 2023

Language: Английский

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Engineering layered/spinel heterostructure via molybdenum doping towards highly stable Li-rich cathodes

Tungsten, Journal Year: 2022, Volume and Issue: 4(4), P. 323 - 335

Published: Sept. 24, 2022

Language: Английский

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