Photocatalysis toward Microplastics Conversion: A Critical Review

ACS Catalysis, Год журнала: 2024, Номер 14(11), С. 8694 - 8719

Опубликована: Май 20, 2024

Microplastics (MPs, particle size < 5 mm) have become increasingly ubiquitous on Earth due to the cleavage and degradation of heavy use plastics. MPs recently been reported be detected in human blood, alveoli, breast milk, embryos, other organs, raising concerns about their environmental risks. Photocatalysis has identified as a potential means for conversion, which utilizes solar energy stimulate semiconductor photocatalyst. However, study photocatalytic conversion is still incubation period. This review overviews current state-of-the-art technologies conversion. Then, fundamental principles, challenges, analytical techniques, evaluation indexes reforming are highlighted. We systematically summarized recent advances key factors influencing performance. Finally, we propose some perspectives developing efficient systems MPs. will provide guideline applying technology MPs, significantly contribute this emerging research field.

Язык: Английский

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Non‐Metal Sulfur Doping of Indium Hydroxide Nanocube for Selectively Photocatalytic Reduction of CO₂ to CH₄: A “One Stone Three Birds” Strategy

Advanced Science, Год журнала: 2024, Номер 11(30)

Опубликована: Июнь 13, 2024

Photocatalytic CO

Язык: Английский

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MOF-Based Electrocatalysts: An Overview from the Perspective of Structural Design

Chemical Reviews, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

The electrocatalytic technique, as an efficient energy storage and conversion technology, has attracted significant attention to address exhaustion environmental pollution. Usually, the activity selectivity of reactions are largely dominated by dynamic process occurring on electrocatalysts. Therefore, high-performance electrocatalysts, which can dominate pathway barrier reactions, great significance for advancement technique. Metal-organic frameworks (MOFs), emerging crystalline porous materials, present structural component advantages including well-defined structure, high surface area, large porosity, diverse components, easy tailorability, demonstrating fantastic potential precise fabrication In this Review, strategies in electrocatalysts based MOF-related materials specifically introduced from aspects catalytic site design microenvironment modulation around sites. Furthermore, representative progress achieved various applications employing MOF-based is systematically summarized, with special emphasis MOFs performance optimization. Finally, remaining challenges future perspectives further highlighted.

Язык: Английский

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Recent research progress of MOFs-Based heterostructures for photocatalytic hydrogen evolution

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155194 - 155194

Опубликована: Авг. 26, 2024

Язык: Английский

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Boosted Charge Transfer for Highly Efficient Photosynthesis of H₂O₂ over Z‐Scheme I⁻/K⁺ Co‐Doped g‐C₃N₄/Metal–Organic‐Frameworks in Pure Water under Visible Light

Advanced Energy Materials, Год журнала: 2024, Номер 14(38)

Опубликована: Июль 9, 2024

Abstract Photocatalytic oxygen reduction reaction (ORR) is an environmentally friendly and cost‐effective approach for H 2 O synthesis. However, the current photosynthesis system suffers from sluggish kinetics, rapid recombination of photoexcited charge carriers, weak redox potentials, resulting in unsatisfactory solar‐to‐chemical conversion efficiency. Herein, a Z‐scheme heterojunction (UiO/IKCN) constructed through coupling I − /K + co‐doped g‐C 3 N 4 (IKCN) with NH ‐UiO‐66, typical metal‐organic framework material. Under visible light irradiation, optimal UiO/IKCN exhibits exceptional production rates pure water (13.3 mM g −1 h ) isopropanol solution (72.6 ), that 48.4 times higher than pristine CN (1.5 ). A high apparent quantum yield 10.28% at 420 nm achieved by UiO/IKCN, surpassing most previously reported values. The dominating role two‐electron ORR elucidated detail. significantly enhanced photocatalytic activity can be attributed to facilitated separation transfer, which are unambiguously verified stable‐state surface photovoltage, transient photoluminescence, femtosecond absorption spectroscopy, in‐situ irradiated X‐ray photoelectron density functional theory calculations. This study represents first exploration using ‐UiO‐66 provides insights into rational design highly efficient photosynthesis.

Язык: Английский

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Reticular Materials for Photocatalysis

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 27, 2024

Abstract Photocatalysis leverages solar energy to overcome the thermodynamic barrier, enabling efficient chemical reactions under mild conditions. It can greatly reduce reliance on traditional sources and has attracted significant research interest. Reticular materials, including metal‐organic frameworks (MOFs) covalent organic (COFs), represent a class of crystalline materials constructed from molecular building blocks linked by coordination bonds, respectively. function as heterogeneous catalysts, combining well‐defined structures high tailorability akin homogeneous catalysts. In this review, regulation light absorption, charge separation, surface in photocatalytic process through precise molecular‐level design based features reticular is elaborated. Notably, for MOFsmicroenvironment modulation around catalytic sites affects performance delved, with emphasis their unique dynamic flexible microenvironments. For COFs, inherent excitonic effects due fully nature discussed highlight strategies regulate charge‐ and/or energy‐transfer‐mediated photocatalysis. Finally, current challenges future directions field, aiming provide comprehensive understanding how be optimized enhanced photocatalysis discussed.

Язык: Английский

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Incorporation of Pd Single‐atom Sites in Perovskite with an Excellent Selectivity toward Photocatalytic Semihydrogenation of Alkynes

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Июль 27, 2024

Abstract Semihydrogenation is a crucial industrial process. Noble metals such as Pd have been extensively studied in semihydrogenation reactions, owing to their unique catalytic activity toward hydrogen activation. However, the overhydrogenation of alkenes alkanes often happens due rather strong adsorption on active phases. Herein, we demonstrate that incorporation phases single‐atom sites perovskite lattices SrTiO 3 can greatly alternate electronic structure and coordination environment facilitate desorption than further hydrogenation. Furthermore, incorporated be well stabilized without sintering by host–guest interaction with during activation H species hydrogenation reactions. As result, (Pd‐SrTiO ) exhibits an excellent time‐independent selectivity (>99.9 %) robust durability for photocatalytic phenylacetylene styrene. This strategy based will broad implications development high‐performance photocatalysts selective

Язык: Английский

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Giant Enhancement of Optical Nonlinearity by Manipulating Guest Molecular Stacking Modes in Metal–Organic Frameworks

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

The influence of guest stacking interactions in host-guest (H-G) MOF composites on third-order nonlinear optical (NLO) performance remains largely unknown. Herein, we propose for the first time a noncovalent aggregate confinement strategy synthesizing H-G with different modes. And [perylene2]n (α-Pe) and [perylene]n (β-Pe) were selected as guests confined into novel Ca-based {[Ca(TBAPy)(DMA)2]·3DMA·[N(CH3)2]·H2O}n (Ca-MOF-pts). NLO results showed that compared to β-Pe@Ca-MOF-pts, saturable absorption (SA) self-defocusing properties α-Pe@Ca-MOF-pts increased by 2.71-fold 3.82-fold, respectively. Interestingly, α/β-Pe@Ca-MOF-pts can be transformed α/β-Pe@Ca-MOF-flu (Ca-MOF-flu = {[Ca1.5(TBAPy)(H2O)2]·DMA·[N(CH3)2]·2H2O}n) through self-adaptive topological evolution, corresponding signal change from SA reverse (RSA). As expected, β-Pe@Ca-MOF-flu, RSA α-Pe@Ca-MOF-flu are improved 2.94-fold 4.07-fold, respectively, demonstrating importance Theoretical calculation transient spectra indicated enhancement was attributed large π-π overlap α-Pe, which promoted electron delocalization/transfer optimized cross-sectional ground state excited state. This study provides new developing excellent properties.

Язык: Английский

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Atomically Precise Metal Nanoclusters for Photocatalytic Water Splitting

ACS Materials Letters, Год журнала: 2024, Номер 6(7), С. 2995 - 3006

Опубликована: Июнь 12, 2024

Atomically precise nanoclusters (NCs), which bridge the gap between molecular chemistry and nanochemistry, are drawing significant attention in various fields. Due to their discrete energy structures like molecules, NCs exhibit intriguing optical properties defined metal sites, making them an ideal platform for studying photocatalytic reactions. This perspective elaborates design principles efficient based water splitting photocatalysts from three fundamental aspects photocatalysis: (1) light absorption charge excitation, (2) separation transport, (3) surface An outlook on future work developing is also provided.

Язык: Английский

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Balancing the Charge Separation and Surface Reaction Dynamics in Twin‐Interface Photocatalysts for Solar‐to‐Hydrogen Production

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 19, 2024

Solar-driven photocatalytic green hydrogen (H

Язык: Английский

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