An efficient photocatalysis-self-Fenton system based on Fe(<scp>ii</scp>)-MOF/g-C<sub>3</sub>N<sub>4</sub>for direct hydroxylation of benzene to phenol

Jia, Xu; Xu, Xuetong; Liu, Cong; Wang, Fuying; Zhang, Liuxue; Jiao, Shuyan; Zhu, Genxing; Yu, Guomin; Wang, Xiulian

doi:10.1039/d3ma00235g

Cited by 2 publications

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“…The peaks at 1637 cm À1 and 1244 cm À1 were associated with the typical -CQN-tensile vibrations of heptazine-derived repeating units and the C-N stretching of aromatic groups, respectively. 48 When P-C 3 N 4 was introduced into the MOF, the same peak as mentioned above was observed in the spectrum of the composite material, thus confirming the successful preparation of Ce/N-MOF(Fe)@ P-C 3 N 4 .…”

Section: Sample Structure Characterizationsupporting

confidence: 75%

Preparation of a Ce/N-MOF(Fe)@P-C₃N₄ composite photocatalyst and efficient oxidation of benzene to phenol

Wang,

Zhang,

Liu

et al. 2024

New J. Chem.

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Section: Sample Structure Characterizationsupporting

confidence: 75%

Preparation of a Ce/N-MOF(Fe)@P-C₃N₄ composite photocatalyst and efficient oxidation of benzene to phenol

Wang,

Zhang,

Liu

et al. 2024

New J. Chem.

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“…Then, the photogenerated charge pairs react with H 2 O 2 or hydroxyl groups adsorbed on the surface of the nanomotors to produce hydroxyl radicals (step 2). These photogenerated hydroxyl radicals directly attack the benzene compound, leading to the formation of a hydroxyl cyclohexadienyl radical, which generates phenol after losing a proton (step 3). − …”

Section: Resultsmentioning

confidence: 99%

Boosting the Efficiency of Photoactive Rod-Shaped Nanomotors via Magnetic Field-Induced Charge Separation

Ferrer Campos,

Bakenecker,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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Photocatalytic nanomotors have attracted a lot of attention because of their unique capacity to simultaneously convert light and chemical energy into mechanical motion with a fast photoresponse. Recent discoveries demonstrate that the integration of optical and magnetic components within a single nanomotor platform offers novel advantages for precise motion control and enhanced photocatalytic performance. Despite these advancements, the impact of magnetic fields on energy transfer dynamics in photocatalytic nanomotors remains unexplored. Here, we introduce dual-responsive rod-like nanomotors, made of a TiO2/NiFe heterojunction, able to (i) self-propel upon irradiation, (ii) align with the direction of an external magnetic field, and (iii) exhibit enhanced photocatalytic performance. Consequently, when combining light irradiation with a homogeneous magnetic field, these nanomotors exhibit increased velocities attributed to their improved photoactivity. As a proof-of-concept, we investigated the ability of these nanomotors to generate phenol, a valuable chemical feedstock, from benzene under combined optical and magnetic fields. Remarkably, the application of an external magnetic field led to a 100% increase in the photocatalytic phenol generation in comparison with light activation alone. By using various state-of-the-art techniques such as photoelectrochemistry, electrochemical impedance spectroscopy, photoluminescence, and electron paramagnetic resonance, we characterized the charge transfer between the semiconductor and the alloy component, revealing that the magnetic field significantly improved charge pair separation and enhanced hydroxyl radical generation. Consequently, our work provides valuable insights into the role of magnetic fields in the mechanisms of light-driven photocatalytic nanomotors for designing more effective light-driven nanodevices for selective oxidations.

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An efficient photocatalysis-self-Fenton system based on Fe(ii)-MOF/g-C₃N₄for direct hydroxylation of benzene to phenol

Abstract: In order to improve the issue which possessed the weakness in the cumene method, a heterojunction catalyst based on Fe(Ⅱ)-MOF/g-C3N4 was synthesized via in-situ synthesis method. The combination of Fe(Ⅱ)-MOF...

Cited by 2 publications

References 64 publications

Preparation of a Ce/N-MOF(Fe)@P-C₃N₄ composite photocatalyst and efficient oxidation of benzene to phenol

Preparation of a Ce/N-MOF(Fe)@P-C₃N₄ composite photocatalyst and efficient oxidation of benzene to phenol

Boosting the Efficiency of Photoactive Rod-Shaped Nanomotors via Magnetic Field-Induced Charge Separation

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An efficient photocatalysis-self-Fenton system based on Fe(ii)-MOF/g-C3N4for direct hydroxylation of benzene to phenol

Abstract: In order to improve the issue which possessed the weakness in the cumene method, a heterojunction catalyst based on Fe(Ⅱ)-MOF/g-C3N4 was synthesized via in-situ synthesis method. The combination of Fe(Ⅱ)-MOF...

Cited by 2 publications

References 64 publications

Preparation of a Ce/N-MOF(Fe)@P-C3N4 composite photocatalyst and efficient oxidation of benzene to phenol

Preparation of a Ce/N-MOF(Fe)@P-C3N4 composite photocatalyst and efficient oxidation of benzene to phenol

Boosting the Efficiency of Photoactive Rod-Shaped Nanomotors via Magnetic Field-Induced Charge Separation

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An efficient photocatalysis-self-Fenton system based on Fe(ii)-MOF/g-C₃N₄for direct hydroxylation of benzene to phenol

Preparation of a Ce/N-MOF(Fe)@P-C₃N₄ composite photocatalyst and efficient oxidation of benzene to phenol

Preparation of a Ce/N-MOF(Fe)@P-C₃N₄ composite photocatalyst and efficient oxidation of benzene to phenol