Engineering two-dimensional SnC/HfSSe heterojunction as a direct Z-scheme photocatalyst for water splitting hydrogen evolution

Applied Surface Science, Journal Year: 2023, Volume and Issue: 626, P. 157247 - 157247

Published: April 14, 2023

Language: Английский

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Z‐Scheme Modulated Charge Transfer on InVO₄@ZnIn₂S₄ for Durable Overall Water Splitting

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

Published: Feb. 15, 2023

Abstract The charge transfer within heterojunction is crucial for the efficiency and stability of photocatalyst overall water splitting (OWS). Herein, InVO 4 nanosheets have been employed as a support lateral epitaxial growth ZnIn 2 S to produce hierarchical @ZnIn (InVZ) heterojunctions. distinct branching heterostructure facilitates active site exposure mass transfer, further boosting participation proton reduction oxidation, respectively. unique Z‐scheme modulated visualized by simulation in situ analysis, has proved promote spatial separation photoexcited charges strengthen anti‐photocorrosion capability InVZ. optimized InVZ presents improved OWS (153.3 µmol h −1 g H 76.9 O ) competitive production (21090 ). Even after 20 times (100 h) cycle experiment, it still holds more than 88% activity complete structure.

Language: Английский

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Enhancement of Charge Separation and NIR Light Harvesting through Construction of 2D–2D Bi₄O₅I₂/BiOBr:Yb³⁺, Er³⁺ Z‐Scheme Heterojunctions for Improved Full‐Spectrum Photocatalytic Performance

Advanced Science, Journal Year: 2023, Volume and Issue: 10(13)

Published: Feb. 21, 2023

Developing full-spectrum photocatalysts with simultaneous broadband light absorption, excellent charge separation, and high redox capabilities is becoming increasingly significant. Herein, inspired by the similarities in crystalline structures compositions, a unique 2D-2D Bi

Language: Английский

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A review on development and modification strategies of MOFs Z-scheme heterojunction for photocatalytic wastewater treatment, water splitting, and DFT calculations

Heliyon, Journal Year: 2024, Volume and Issue: 10(13), P. e32861 - e32861

Published: June 13, 2024

Increasing water pollution and decreasing energy reserves have emerged as growing concerns for the environment. These pollutions are due to dangerous effects of numerous pollutants on humans aquatic organisms, such hydrocarbons, biphenyls, pesticides, dyes, pharmaceuticals, metal ions. On other hand, need a clean environment, finding alternatives fossil renewable fuels is very important. Hydrogen (H2) regarded viable promising substitute fuels, range methodologies been devised generate this particular source energy. Metal-organic frameworks (MOFs) new generation nanoporous coordination polymers whose crystal structure composed juxtaposition organic inorganic constituent units. Due their flexible nature, regular structure, high surface area, these materials attracted much attention removing various from wastewater, splitting. MOFs Z-scheme heterojunctions identified an economical eco-friendly method eliminating wastewater systems, produce H2. Their low-cost synthesis unique properties increase application in environment fields. The possess diverse properties, exceptional making them ideal degradation separation. development formulation photocatalytic system using MOFs, which stable potent redox capability, has successful approach addressing environmental shortages recent times. Through utilization benefits offered by photocatalysts, efficient separation migration charge carriers, extensive spectrum light absorption, among advantages, notable enhancements can be attained. This review encompasses techniques, heterojunctions, use treating wastewaters, including heavy metals, Also, it provides overview mechanisms, pathways, theoretical practical aspects heterojunctions. Finally, thoroughly assesses existing challenges suggests further research applications industrial-scale treatment.

Language: Английский

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Enhancing Solar-Driven Water Purification by Multiscale Biomimetic Evaporators Featuring Lamellar MoS₂/GO Heterojunctions

ACS Nano, Journal Year: 2024, Volume and Issue: 18(4), P. 3115 - 3124

Published: Jan. 22, 2024

Solar-powered steam generation holds a strong sustainability in facing the global water crisis, while production efficiency and antifouling performance remain challenges. Inspired by river moss, multiscale biomimetic evaporator is designed, where key photothermal conversion film composed of lamellar MoS2/graphene oxides (GO) can significantly enhance evaporation solve problem fouling. First-level leaf-like MoS2/GO nanosheets, obtained modified hydrothermal synthesis with an assisted magnetic-field rotation stirring, are self-assembled into second-level nanoporous film, which achieves rate (ER) 1.69 kg m–2 h–1 under 1 sun illumination excellent self-cleaning ability. The tertiary-bionic macroscopic crownlike shape further enhances ER to 3.20 h–1, 189% above that planar yielding 20.25 m2 freshwater from seawater during daytime exposure 6 h. exceptional outcomes originate design microscopic integration heterojunction interfaces between MoS2 GO interlayers surface. indicates potential direction through surface/interface regulation nanomaterials for desalination.

Language: Английский

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Unlocking the Potential of High Entropy Alloys in Electrochemical Water Splitting: A Review

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 23, 2024

The global pursuit of sustainable energy is focused on producing hydrogen through electrocatalysis driven by renewable energy. Recently, High entropy alloys (HEAs) have taken the spotlight in electrolysis due to their intriguing cocktail effect, broad design space, customizable electronic structure, and stabilization effect. tunability complexity HEAs allow a diverse range active sites, optimizing adsorption strength activity for electrochemical water splitting. This review comprehensively covers contemporary advancements synthesis technique, framework, physio-chemical evaluation approaches HEA-based electrocatalysts. Additionally, it explores principles strategies aimed at catalytic activity, stability, effectiveness evolution reaction (HER), oxygen (OER), overall Through an in-depth investigation these aspects, inherent constituent element interactions, processes, sites associated with unravel. Eventually, outlook regarding challenges impending difficulties outline future direction HEA provided. thorough knowledge offered this will assist formulating designing catalysts based next generation electrochemistry-related applications.

Language: Английский

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Data-Driven Discovery of Intrinsic Direct-Gap 2D Materials as Potential Photocatalysts for Efficient Water Splitting

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(3), P. 1336 - 1350

Published: Jan. 11, 2024

Intrinsic direct-gap two-dimensional (2D) materials hold great promise as photocatalysts, advancing the application of photocatalytic water splitting for hydrogen production. However, time- and resource-efficient exploration identification such 2D from a vast compositional structural chemical space present significant challenges within realm science research. To this end, we perform data-driven study to find with intrinsic desirable properties overall splitting. By implementing three-staged large-scale screening, which incorporates machine-learned data V2DB, high-throughput density functional theory (DFT), hybrid-DFT calculations, identify 16 promising photocatalysts. Subsequently, conduct comprehensive assessment that are related solar performance, include electronic optical properties, solar-to-hydrogen conversion efficiencies, carrier mobilities. Therefore, not only presents photocatalysts but also introduces rigorous approach future discovery currently unexplored spaces.

Language: Английский

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Integration of Plasmonic materials with MOFs/MOF-derived materials for Photocatalysis

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 518, P. 216113 - 216113

Published: July 27, 2024

Language: Английский

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Ferroelectric switching driven photocatalytic overall water splitting in the As/In₂Se₃ heterostructure

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The photocatalytic overall water splitting can be achieved in the As/In 2 Se 3 vdW heterostructure by regulating polarization direction of In layer.

Language: Английский

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A scalable solar-driven photocatalytic system for separated H2 and O2 production from water

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

Published: Jan. 24, 2025

Solar-driven photocatalytic water splitting offers a sustainable pathway to produce green hydrogen, yet its practical application encounters several challenges including inefficient photocatalysts, sluggish oxidation, severe reverse reactions and the necessity of separating produced hydrogen oxygen gases. Herein, we design develop system composed two separate reaction parts: evolution cell containing halide perovskite photocatalysts (MoSe2-loaded CH(NH2)2PbBr3-xIx) an NiFe-layered double hydroxide modified BiVO4 photocatalysts. These components are bridged by I3−/I− redox couple facilitate electron transfer, realizing efficient overall with solar-to-hydrogen conversion efficiency 2.47 ± 0.03%. Additionally, outdoor scaled-up setup 692.5 cm2 achieves average 1.21% during week-long test under natural sunlight. By addressing major limitations inherent in conventional systems, such as cooccurrence single resultant from recombination, this work introduces alternative concept for design, which enhances both practicality. Photocatalytic method producing but faces due materials systems. Here, authors report water-splitting that efficiently produces cells.

Language: Английский

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