A review of metal–organic framework (MOF) materials as an effective photocatalyst for degradation of organic pollutants

Nanoscale Advances, Год журнала: 2023, Номер 5(23), С. 6318 - 6348

Опубликована: Янв. 1, 2023

An overview of MOFs and their composite materials for better photocatalytic performance towards organic pollutants.

Язык: Английский

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Design and synthesis of novel polyoxometalate-based binary and ternary nanohybrids for energy conversion and storage

Polyoxometalates, Год журнала: 2023, Номер 2(3), С. 9140037 - 9140037

Опубликована: Сен. 26, 2023

Polyoxometalate (POM) based binary and ternary hybrids, including the combination of POMs, semiconductors, nanostructured carbon (carbon nanotube (CNT), graphene, dots et al.) metal nanoparticles (MNPs), are key materials in photoelectrocatalysis. POM play a role constructing nanohybrids contributing to their photoelectrochemical catalytic properties. These composites combine properties from two or three functional nanoscale materials, resulting wider range applications, catalysis, energy conversion storage, molecular sensors electronics. Herein, we summarize latest progress (POM/Metal, POM/semiconductor POM/nanocarbon) (Metal/POM/nanocarbon) with focus on for photocatalysis, fuel cells, biosensors devices. Current applications critically assessed promising future target systems discussed.

Язык: Английский

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Two-dimensional MOF-based materials: Preparations and applications as electrodes in Li-ion batteries

Journal of Energy Chemistry, Год журнала: 2024, Номер 97, С. 388 - 418

Опубликована: Июнь 12, 2024

Язык: Английский

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Polyoxometalate‐Based Frameworks: Construction Strategies and Photocatalytic Applications

ChemCatChem, Год журнала: 2024, Номер 16(14)

Опубликована: Фев. 28, 2024

Abstract Polyoxometalate‐based frameworks, as a kind of material constructed by polyoxometalates (POMs), metal ions or clusters, organic ligands, are combined both the advantages oxygen‐rich POMs and porous metal‐organic frameworks (MOFs) within one single system. This integration greatly expands their potential applications compared to individual MOFs. Particularly for photocatalysis, narrow light absorption range typical units in ultraviolet region hinders extensive uses visible‐light‐driven photocatalysts. However, incorporation photoactive into POMs‐based can be considered an effective approach overcome this limitation. In paper, we review selected examples recent progress based on POM‐based along with construction strategies various areas mainly including water splitting, CO 2 reduction, synthesis also selective coupling reactions.

Язык: Английский

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Multi-stimuli-responsive polymer degradation by polyoxometalate photocatalysis and chloride ions

Nanoscale, Год журнала: 2024, Номер 16(16), С. 8013 - 8019

Опубликована: Янв. 1, 2024

By utilizing the photocatalysis of a polyoxometalate, [γ-PV 2 W 10 O 40 ] 5− , we developed system for multiple-stimuli-responsive polymer degradation that allows various polymers when multiple stimuli, specifically, light and Cl − are present.

Язык: Английский

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Construction of high reduction potential Fe-POMs/LDHs Z-scheme heterojunction: Variable valence state-assisted photocatalytic activation of persulfate radical for synergistic degradation of tetracycline

Materials Research Bulletin, Год журнала: 2023, Номер 170, С. 112591 - 112591

Опубликована: Окт. 24, 2023

Язык: Английский

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Highly Stable 72-Nuclearity Nanocages for Efficient Synthesis of Aryl Nitriles via Ni/Cu Synergistic Catalysis

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(15), С. 10776 - 10784

Опубликована: Апрель 5, 2024

Seeking noble-metal-free catalysts for efficient synthesis of aryl nitriles under mild conditions poses a significant challenge due to the use hypertoxic cyanides or high-pressure/temperature NH3/O2 in conventional processes. Herein, we developed novel framework 1 assembled by [Ni72] nanocages with excellent solvents/pH stability. To investigate structure–activity relationship catalytic performance, several isostructural MOFs different molar ratios Ni/Cu doping Cu2+ into (Ni0.59Cu0.41 (2), Ni0.81Cu0.19 (3), Ni0.88Cu0.12 (4), and Ni0.92Cu0.08 (5)) were prepared. Catalytic studies revealed that catalyst 3 exhibited remarkable performance nitriles, utilizing formamide alternative NaCN/KCN. Notably, achieved an TOF value 9.8 h–1. Furthermore, demonstrated its applicability gram-scale experiment maintained even after six recycling cycles, owing high stability resulting from electrostatic orbital interactions between Ni center ligands as well large SOMO–LUMO energy gap supported DFT calculations. Control experiments calculations further originated synergistic effect Ni/Cu. Importantly, this work not only provides highly feasible method construct stable containing multinuclear exceptional but also represents first example heterogeneous using cyanide source.

Язык: Английский

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Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

ACS Omega, Год журнала: 2023, Номер 8(30), С. 27284 - 27292

Опубликована: Июль 20, 2023

In this work, we fabricated a TiO2 thin film, and the same film was modified with an Anderson aluminum polyoxometalate (TiO2-AlPOM). Physical-chemical characterization of catalysts showed significant change in morphological optical properties films after surface modification. We applied kinetic isothermal models to methylene blue (MB) adsorption process on both catalysts. The pseudo-second order model best fitting for results; qe (mg/g) 11.9 14.6 TiO2-AlPOM films, k2 (g mg-1 min-1) 16.3 × 10-2 28.2 films. Furthermore, Freundlich suitable describe behavior TiO2, KF (5.42 mg/g), 1/n (0.312). kinetics photocatalytic degradation fitted using Langmuir-Hinshelwood model; kap 7 10-4 min-1 13 TiO2-AlPOM. comparative study that reach 19.6% MB under UV irradiation 9.1% adsorption, while 32.6% 12.2% their surface. modification improves morphological, optical, Finally, DFT supports all previously shown results.

Язык: Английский

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Keggin type Polyoxometalate-based metal-organic frameworks with electrocatalytive activity as effective multifunctional amperometric sensors for metal ions and ascorbic acid

Journal of Molecular Structure, Год журнала: 2024, Номер 1319, С. 139485 - 139485

Опубликована: Июль 28, 2024

Язык: Английский

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Hot Electrons Induced by Localized Surface Plasmon Resonance in Ag/g-C3N4 Schottky Junction for Photothermal Catalytic CO2 Reduction

Polymers, Год журнала: 2024, Номер 16(16), С. 2317 - 2317

Опубликована: Авг. 16, 2024

Converting carbon dioxide (CO

Язык: Английский

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