Construction of 2D S‐Scheme Heterojunction Photocatalyst

Advanced Materials, Год журнала: 2023, Номер 36(8)

Опубликована: Ноя. 22, 2023

Abstract Semiconductor photocatalytic technology holds immense promise for converting sustainable solar energy into chemically storable energy, with significant applications in the realms of and environment. However, inherent issue rapid recombination photogenerated electrons holes hinders performance single photocatalysts. To overcome this challenge, construction 2D S‐scheme heterojunction photocatalysts emerges as an effective strategy. The deliberate design dimensionality ensures a substantial interfacial area; while, charge transfer mechanism facilitates efficient separation maximizes redox capabilities. This review commences fresh perspective on heterojunctions, followed by comprehensive exploration preparation methods characterization techniques. Subsequently, recent advancements are summarized. Notably, behind activity enhancement is elucidated. Finally, prospects development presented.

Язык: Английский

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Single‐Atom Phosphorus Defects Decorated CoP Cocatalyst Boosts Photocatalytic Hydrogen Generation Performance of Cd_0.5Zn_0.5S by Directed Separating the Photogenerated Carriers

Small, Год журнала: 2023, Номер 19(20)

Опубликована: Фев. 17, 2023

Abstract Design and preparation of an efficient nonprecious cocatalysts, with structural features functionality necessary for improving photocatalytic performance semiconductors, remain a formidable challenge until now. Herein, the first time, novel CoP cocatalyst single‐atom phosphorus vacancies defects (CoP‐V p ) is synthesized coupled Cd 0.5 Zn S to build CoP‐V @Cd @CZS) heterojunctions photocatalysts via liquid phase corrosion method following by in suit growth process. The nanohybrids deliver attractive hydrogen production activity 2.05 mmol h −1 30 mg under visible‐light irradiation, which 14.66 times higher than that pristine ZCS samples. As expected, further enhances charge‐separation efficiency ZCS, addition improvement electron transfer efficiency, confirmed ultrafast spectroscopies. Mechanism studies based on density functional theory calculations verify Co atoms adjacent V play key role translation, rotation, transformation electrons H 2 O reduction. This scalable strategy focusing defect engineering provides new insight into designing highly active cocatalysts boost application.

Язык: Английский

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Rationally designed dual cocatalysts on ZnIn₂S₄ nanoflowers for photoredox coupling of benzyl alcohol oxidation with H₂ evolution

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(30), С. 18986 - 18992

Опубликована: Янв. 1, 2024

GR and Ni 2 P dual cocatalysts modified ZnIn S 4 nanoflower has been prepared they can simultaneously utilize photogenerated electrons holes to actuate the oxidation of benzyl alcohol (BA) benzaldehyde (BAD) integrated with H evolution.

Язык: Английский

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Defect Engineering in Nanocatalysts: From Design and Synthesis to Applications

Advanced Functional Materials, Год журнала: 2024, Номер 34(29)

Опубликована: Фев. 13, 2024

Abstract Defect engineering is an emerging technology for tailoring nanomaterials' characteristics and catalytic performance in various applications. Recently, defect‐engineered nanoparticles have emerged as highly researched materials applications because of their exceptional redox reaction capabilities physicochemical optical properties. The properties nanomaterials can be readily adjusted by controlling the nature concentration defects within nanoparticles, avoiding need intricate design strategies. This review investigates defect nanocatalysts, including design, fabrication, Initially, categories strategies nanomaterial impacts on nanocatalysts' electronic surface properties, activity, selectivity, stability are summarized. Then, processes uses, gas sensing, hydrogen (H 2 ) evolutions, water splitting, reductions carbon dioxide (CO nitrogen to value‐aided products, pollutant degradation, biomedical (oncotherapy, antibacterial wound healing, biomolecular sensing) discussed. Finally, limitations prospective paths allowing logical optimization nanocatalytic long‐term efficient also examined. comprehensive gives unique insights into current state nanocatalysts inspires future research exploiting shortcomings improve customize performance.

Язык: Английский

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S-scheme P-doped g-C3N4/BiOBr heterojunction with oxygen vacancy for efficient photocatalytic degradation of phenanthrene: Enhance molecular oxygen activation and mechanism insights

Chemical Engineering Journal, Год журнала: 2023, Номер 472, С. 145053 - 145053

Опубликована: Июль 26, 2023

Язык: Английский

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Molecular oxygen activation: Innovative techniques for environmental remediation

Water Research, Год журнала: 2023, Номер 250, С. 121075 - 121075

Опубликована: Дек. 27, 2023

Язык: Английский

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Efficient Hydrogen Peroxide Photosynthesis over CdS/COF for Water Disinfection: The S-Scheme Pathway, Oxygen Adsorption, and Reactor Design

ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(49), С. 17552 - 17563

Опубликована: Ноя. 29, 2023

Solar-driven photocatalytic hydrogen peroxide (H2O2) production presents a promising avenue for achieving sustainable water disinfection. However, the development of robust and durable system practical applications remains notable unresolved challenge. Herein, star photocatalyst, covalent organic frameworks (COFs), was modified with CdS boosting environmentally benign H2O2 synthesis. Under simulated sunlight without sacrificial reagents, composite material exhibited capacity production, which attributable to establishment "step" (S)-scheme transfer pathway facilitation adequate oxygen diffusion. Nevertheless, it found that photocatalytically derived alone inefficient disinfection performance, whereas addition Fe(II) allowed rapid inactivation Escherichia coli, emphasizing pivotal importance integrating photocatalysis Fenton reactions within system. Furthermore, dual-compartment reactor, employing semipermeable membrane, devised spatially segregate photocatalysts from microorganisms. Such an operation mode enabled diffusion compartment microbial compartment, thereby "long-distance" sterilization manner simultaneous consummating recovery strategy photocatalysts. This study not only provides paradigmatic approach COF-based but also illuminates innovative technological option photocatalytic-based

Язык: Английский

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Enhanced photocatalysis-Fenton degradation of levofloxacin by Fe doped BiOCl microspheres with rich surface oxygen vacancies: The accelerated redox cycle of ≡Fe(III)/≡Fe(II)

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 129086 - 129086

Опубликована: Авг. 3, 2024

Язык: Английский

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Structuring dual Z-scheme heterojunction and boosting surface reaction by bifunctional NiCoP modified TiO2/g-C3N4 for improving the photocatalytic activity

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 62, С. 127 - 139

Опубликована: Март 11, 2024

Язык: Английский

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Enhanced photocatalytic bisphenol A degradation of Z-scheme 2D − 2D Bi2WO6 − Bi3O4Br heterostructure by constructing an interfacial electric field

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162933 - 162933

Опубликована: Март 1, 2025

Язык: Английский

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