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Nature-Mimic Fabricated Polydopamine/MIL-53(Fe): Efficient Visible-light Responsive Photocatalysts for the Selective Oxidation of Alcohols

Abstract

Polydopamine/MIL-53(Fe) (PDA/MIL-53(Fe)) nanocomposite photocatalysts were synthesized with PDA (PDA = polydopamine) and MIL-53(Fe) by a nature-mimic method. The structures, morphologies, optical properties and thermal stabilities of all the synthesized materials were characterized by a series of methods. In particular, the separation efficiency of photogenerated charge was significantly increased after the incorporation of PDA and MIL-53(Fe), which resulted in an elevated photocatalytic activity of PDA/MIL-53(Fe) compared with the control groups. PDA/MIL-53(Fe) nanocomposite could accelerate converting the primary or secondary alcohols to corresponding aldehydes or ketones under visible-light irradiation and room temperature by direct hole-involving oxidation with high specificity. The catalysts showed excellent recyclability and stability and could be cycled at least three times without significant catalytic activity decrease.

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Article information


Submitted
29 Sep 2019
Accepted
07 Jan 2020
First published
07 Jan 2020

New J. Chem., 2020, Accepted Manuscript
Article type
Paper

Nature-Mimic Fabricated Polydopamine/MIL-53(Fe): Efficient Visible-light Responsive Photocatalysts for the Selective Oxidation of Alcohols

S. Meng, W. Zeng, M. Wang, L. Niu, S. Hu, B. Su, Y. Yang, Z. Yang and Q. Xue, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/C9NJ04929K

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