Single phase of perovskite YTaON<sub>2</sub> synthesized for photocatalytic water reduction and oxidation under visible-light irradiation

Zou, Hai; Bao, Yunfeng; Du, Shiwen; Xin, Xueshang; Qi, Yu; Shao, Guosheng; Zhang, Fuxiang

doi:10.1039/d3ta03495j

Cited by 5 publications

(1 citation statement)

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“…Very recently, our group has developed a metallic powder-assisted nitridation strategy, in which the addition of metal powder with low work function (i.e., Mg powder) can remarkably reduce the nitridation kinetics. [84][85][86] However, the nucleation-growth sites in those nitridation processes are all at the interface of the gas-solid phase, on which the obtained (oxy)nitride particles generally aggregate with each other, leading to difficulty in morphology control. In recent years, the ux-assisted nitridation method has been extensively developed for the preparation of (oxy) nitrides, in which the nucleation-growth sites are at the interface of the liquid-solid phase.…”

Section: Basics Of (Oxy)nitridesmentioning

confidence: 99%

Nanostructured (oxy)nitrides controllably synthesized by flux-assisted nitridation for promoted photocatalytic water splitting

Yuan,

Liu,

Chen

et al. 2024

J. Mater. Chem. A

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Section: Basics Of (Oxy)nitridesmentioning

confidence: 99%

Nanostructured (oxy)nitrides controllably synthesized by flux-assisted nitridation for promoted photocatalytic water splitting

Yuan,

Liu,

Chen

et al. 2024

J. Mater. Chem. A

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Efficient Photocatalytic Oxidative Coupling of Amines under Visible Light Using a Trioporphyrins‐Based Covalent Triazine Framework

Liu,

Guo,

Zheng

et al. 2024

ChemPlusChem

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Porphyrins‐based porous organic polymers (POP) were widely used in photocatalytic oxidation under visible light owing to their superiority in the activation of oxygen. In contrast, the efficiency is usually limited due to the fast recombination and slow electron transfer. Herein, we report the use of a trioporphyrins‐based covalent triazine framework (Por‐CTF) as visible‐light‐active photocatalyst for the coupling oxidative of amines to imines at room temperature. By incorporating the π‐conjugated porphyrin building block led to the enhanced electron transport between molecules, and the extended recombination time of excited electrons. The photocatalytic efficiency of Por‐CTF is superior to that of polymer in absence of triazine framework (POP‐TSP), which was prepared by radical polymerization using tetra‐(4‐vinylphenyl) porphyrin (TSP) as monomer. Por‐CTF catalyst presented excellent efficiency for various primary amines and stability. This work provides a reasonable guidance of catalyst molecular structure design for enhancing efficiency in the photocatalytic oxidation.

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Visible‐Light Harvesting SrTiO₃ Solid Solutions for Photocatalytic Hydrogen Evolution from Water

Xin,

Zou,

et al. 2024

ChemSusChem

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The fabrication of solid solutions represents a compelling approach to modulating the physicochemical properties of materials. In this study, we achieved the successful synthesis of solid solutions comprising SrTiO3 and SrTaO2N (denoted as (SrTiO3)1‐x‐(SrTaO2N)x, 0 ≤ x ≤ 1) using the magnesium powder‐assisted nitridation method. The absorption edge of (SrTiO3)1‐x‐(SrTaO2N)x is tunable from 500 to 600 nm. The conduction band minimum (CBM) of (SrTiO3)1‐x‐(SrTaO2N)x comprises the Ti 3d orbitals and the Ta 5d orbitals, while the valence band maximum (VBM) consists of the O 2p and N 2p orbitals. The microstructure of the (SrTiO3)1‐x‑(SrTaO2N)x consists of small nanoparticles, exhibiting a larger specific surface area than the parent compounds of SrTiO3 and SrTaO2N. In the photocatalytic hydrogen evolution reaction (HER) with sacrificial reagents, the activity of solid solutions is notably superior to that of nitrogen‐doped SrTiO3 and SrTaO2N. This superiority is mainly attributed to its broad light absorption range and high charge separation efficiency, which indicates its potential as a promising photocatalytic material. Moreover, the magnesium powder‐assisted nitridation method exhibits obvious advantages for the synthesis of oxynitrides and bears instructional significance for the synthesis of other nitrogen‐containing compounds and even sulfur‐containing compounds

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Single phase of perovskite YTaON₂ synthesized for photocatalytic water reduction and oxidation under visible-light irradiation

Abstract: Single-phase perovskite-structured YTaON2 with a band gap of 2.1 eV was obtained for the first time by an enhanced nitriding kinetics method and its dual functionalities of water reduction and oxidation were proved.

Cited by 5 publications

References 33 publications

Nanostructured (oxy)nitrides controllably synthesized by flux-assisted nitridation for promoted photocatalytic water splitting

Nanostructured (oxy)nitrides controllably synthesized by flux-assisted nitridation for promoted photocatalytic water splitting

Efficient Photocatalytic Oxidative Coupling of Amines under Visible Light Using a Trioporphyrins‐Based Covalent Triazine Framework

Visible‐Light Harvesting SrTiO₃ Solid Solutions for Photocatalytic Hydrogen Evolution from Water

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Single phase of perovskite YTaON2 synthesized for photocatalytic water reduction and oxidation under visible-light irradiation

Abstract: Single-phase perovskite-structured YTaON2 with a band gap of 2.1 eV was obtained for the first time by an enhanced nitriding kinetics method and its dual functionalities of water reduction and oxidation were proved.

Cited by 5 publications

References 33 publications

Nanostructured (oxy)nitrides controllably synthesized by flux-assisted nitridation for promoted photocatalytic water splitting

Nanostructured (oxy)nitrides controllably synthesized by flux-assisted nitridation for promoted photocatalytic water splitting

Efficient Photocatalytic Oxidative Coupling of Amines under Visible Light Using a Trioporphyrins‐Based Covalent Triazine Framework

Visible‐Light Harvesting SrTiO3 Solid Solutions for Photocatalytic Hydrogen Evolution from Water

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Single phase of perovskite YTaON₂ synthesized for photocatalytic water reduction and oxidation under visible-light irradiation

Visible‐Light Harvesting SrTiO₃ Solid Solutions for Photocatalytic Hydrogen Evolution from Water