Metal–organic framework-based S-scheme heterojunction photocatalysts

Yuan, Ling; Du, Peiyang; Yin, Luli; Yao, Jiamin; Wang, Jing; Liu, Chao

doi:10.1039/d3nr06677k

Nanoscale

2024

DOI: 10.1039/d3nr06677k

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Metal–organic framework-based S-scheme heterojunction photocatalysts

Ling Yuan,

Peiyang Du,

Luli Yin

et al.

Abstract: A timely review on the recent advances of metal–organic framework-based step-scheme heterojunctions with respect to their synthesis, structures and applications is provided.

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Cited by 6 publications

References 164 publications

(242 reference statements)

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Boosting Photocatalytic Upcycling of Liquid Biomass into Biodiesel via Microenvironment Modulation

He,

Zhang,

Zhou

et al. 2024

Advanced Energy Materials

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The rational design of a photocatalyst and its microenvironmental modulation is crucial in the heterogeneous photocatalysis process, yet relevant research on photocatalytic biodiesel synthesis is not explored. Herein, based on the prediction of density functional theory (DFT) calculations, highly efficient ternary biocompatible montmorillonite (Mt) nanocomposites of S‐scheme heterojunction photocatalysts (g‐C3N4‐TiO2@Mt, CTM) are successfully rationally designed. By modulating the microenvironment in photocatalytic biodiesel production, CTM‐2 demonstrates exceptional catalytic performance and stability, achieving a record‐breaking biodiesel yield of 98.5%. Through ex/in situ X‐ray photoelectron spectroscopy (XPS), X‐ray absorption near‐edge spectroscopy (XANES), and theoretical calculations, the formation of S‐scheme heterojunction is revealed, which can generate an interface electric field (IEF) that provides an intrinsic driving force for carrier migration and enhances surface positivity. This boosts the enrichment effect of electronegative oleic acid (OA) carboxyl molecules, thus greatly enriching the substrate concentration and improving the reaction microenvironment. Moreover, in situ fourier transform infrared spectrometer (FT‐IR)/Raman together with electron paramagnetic resonance (EPR) further confirm the formation of key intermediates CH3O• and ester carbonyl (C═O), and DFT calculations provide a key reference for the photocatalytic reaction pathway, of which CTM‐2 is determined to be capable of significantly reducing the energy barrier of rate‐determining step.

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Boosting Photocatalytic Upcycling of Liquid Biomass into Biodiesel via Microenvironment Modulation

He,

Zhang,

Zhou

et al. 2024

Advanced Energy Materials

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show abstract

Synthesis of the composites of carbon quantum dots and metal organic framework and their application in hydrogen evolution

Chang,

Kung,

Venkatesana

et al. 2024

International Journal of Hydrogen Energy

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Efficient and stable photocatalytic degradation of triazophos pesticides by g-C3N4/WO2.72 nanocomposite with S-scheme heterojunction and oxygen vacancies

Li,

Meng,

Tian

et al. 2024

Journal of Environmental Chemical Engineering

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Metal–organic framework-based S-scheme heterojunction photocatalysts

Abstract: A timely review on the recent advances of metal–organic framework-based step-scheme heterojunctions with respect to their synthesis, structures and applications is provided.

Cited by 6 publications

References 164 publications

Boosting Photocatalytic Upcycling of Liquid Biomass into Biodiesel via Microenvironment Modulation

Boosting Photocatalytic Upcycling of Liquid Biomass into Biodiesel via Microenvironment Modulation

Synthesis of the composites of carbon quantum dots and metal organic framework and their application in hydrogen evolution

Efficient and stable photocatalytic degradation of triazophos pesticides by g-C3N4/WO2.72 nanocomposite with S-scheme heterojunction and oxygen vacancies

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